diff --git a/CHANGELOG.md b/CHANGELOG.md
index ff2fbeddb6..028e4188a6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,6 +16,8 @@
 - [#2538](https://github.com/poanetwork/blockscout/pull/2538) - fetch the last not empty coin balance records
 
 ### Chore
+- [#2590](https://github.com/poanetwork/blockscout/pull/2590) - restore backward compatablity with old releases
+- [#2574](https://github.com/poanetwork/blockscout/pull/2574) - limit request body in json rpc error
 - [#2566](https://github.com/poanetwork/blockscout/pull/2566) - upgrade absinthe phoenix
 
 
@@ -46,6 +48,7 @@
 - [#2520](https://github.com/poanetwork/blockscout/pull/2520) - Hide loading message when fetching is failed
 - [#2523](https://github.com/poanetwork/blockscout/pull/2523) - Avoid importing internal_transactions of pending transactions
 - [#2519](https://github.com/poanetwork/blockscout/pull/2519) - enable `First` page button in pagination
+- [#2518](https://github.com/poanetwork/blockscout/pull/2518) - create suggested indexes
 - [#2517](https://github.com/poanetwork/blockscout/pull/2517) - remove duplicate indexes
 - [#2515](https://github.com/poanetwork/blockscout/pull/2515) - do not aggregate NFT token transfers
 - [#2514](https://github.com/poanetwork/blockscout/pull/2514) - Isolating of staking dapp css && extracting of non-critical css
diff --git a/apps/block_scout_web/mix.exs b/apps/block_scout_web/mix.exs
index 27a1e6aa74..e54907177f 100644
--- a/apps/block_scout_web/mix.exs
+++ b/apps/block_scout_web/mix.exs
@@ -62,7 +62,7 @@ defmodule BlockScoutWeb.Mixfile do
       # GraphQL toolkit
       {:absinthe, "~> 1.4"},
       # Integrates Absinthe subscriptions with Phoenix
-      {:absinthe_phoenix, git: "https://github.com/ayrat555/absinthe_phoenix.git", branch: "master"},
+      {:absinthe_phoenix, git: "https://github.com/ayrat555/absinthe_phoenix.git", branch: "ab-update-plug"},
       # Plug support for Absinthe
       {:absinthe_plug, git: "https://github.com/ayrat555/absinthe_plug.git", branch: "ab-enable-default-query"},
       # Absinthe support for the Relay framework
@@ -130,7 +130,8 @@ defmodule BlockScoutWeb.Mixfile do
       {:wallaby, "~> 0.22", only: [:test], runtime: false},
       # `:cowboy` `~> 2.0` and Phoenix 1.4 compatibility
       {:wobserver, "~> 0.2.0", github: "poanetwork/wobserver", branch: "support-https"},
-      {:phoenix_form_awesomplete, "~> 0.1.4"}
+      {:phoenix_form_awesomplete, "~> 0.1.4"},
+      {:ex_json_schema, "~> 0.6.1"}
     ]
   end
 
diff --git a/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/address_controller_test.exs b/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/address_controller_test.exs
index b8a3a85845..7e88d4717f 100644
--- a/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/address_controller_test.exs
+++ b/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/address_controller_test.exs
@@ -47,6 +47,8 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
         |> get("/api", params)
         |> json_response(200)
 
+      schema = listaccounts_schema()
+      assert :ok = ExJsonSchema.Validator.validate(schema, response)
       assert response["message"] == "OK"
       assert response["status"] == "1"
       assert response["result"] == []
@@ -63,6 +65,8 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
         |> get("/api", params)
         |> json_response(200)
 
+      schema = listaccounts_schema()
+      assert :ok = ExJsonSchema.Validator.validate(schema, response)
       assert response["message"] == "OK"
       assert response["status"] == "1"
 
@@ -120,6 +124,8 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
         |> get("/api", params)
         |> json_response(200)
 
+      schema = listaccounts_schema()
+      assert :ok = ExJsonSchema.Validator.validate(schema, response)
       assert response["message"] == "OK"
       assert response["status"] == "1"
 
@@ -158,6 +164,8 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
                |> get("/api", params)
                |> json_response(200)
 
+      schema = balance_schema()
+      assert :ok = ExJsonSchema.Validator.validate(schema, response)
       assert response["message"] =~ "'address' is required"
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
@@ -176,6 +184,8 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
                |> get("/api", params)
                |> json_response(200)
 
+      schema = balance_schema()
+      assert :ok = ExJsonSchema.Validator.validate(schema, response)
       assert response["message"] =~ "Invalid address hash"
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
@@ -194,6 +204,8 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
                |> get("/api", params)
                |> json_response(200)
 
+      schema = balance_schema()
+      assert :ok = ExJsonSchema.Validator.validate(schema, response)
       assert response["result"] == "0"
       assert response["status"] == "1"
       assert response["message"] == "OK"
@@ -213,6 +225,8 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
                |> get("/api", params)
                |> json_response(200)
 
+      schema = balance_schema()
+      assert :ok = ExJsonSchema.Validator.validate(schema, response)
       assert response["result"] == "#{address.fetched_coin_balance.value}"
       assert response["status"] == "1"
       assert response["message"] == "OK"
@@ -245,6 +259,8 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
                |> get("/api", params)
                |> json_response(200)
 
+      schema = balance_schema()
+      assert :ok = ExJsonSchema.Validator.validate(schema, response)
       assert response["result"] == expected_result
       assert response["status"] == "1"
       assert response["message"] == "OK"
@@ -289,6 +305,8 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
                |> get("/api", params)
                |> json_response(200)
 
+      schema = balance_schema()
+      assert :ok = ExJsonSchema.Validator.validate(schema, response)
       assert response["message"] =~ "Invalid address hash"
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
@@ -315,6 +333,9 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
                |> get("/api", params)
                |> json_response(200)
 
+      schema = balance_schema()
+      assert :ok = ExJsonSchema.Validator.validate(schema, response)
+      assert :ok = ExJsonSchema.Validator.validate(schema, response)
       assert response["result"] == expected_result
       assert response["status"] == "1"
       assert response["message"] == "OK"
@@ -350,6 +371,9 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["result"] == expected_result
       assert response["status"] == "1"
       assert response["message"] == "OK"
+
+      schema = balance_schema()
+      assert :ok = ExJsonSchema.Validator.validate(schema, response)
     end
 
     test "with an address that exists and one that doesn't", %{conn: conn} do
@@ -375,6 +399,9 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["result"] == expected_result
       assert response["status"] == "1"
       assert response["message"] == "OK"
+
+      schema = balance_schema()
+      assert :ok = ExJsonSchema.Validator.validate(schema, response)
     end
 
     test "up to a maximum of 20 addresses in a single request", %{conn: conn} do
@@ -399,6 +426,9 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert length(response["result"]) == 20
       assert response["status"] == "1"
       assert response["message"] == "OK"
+
+      schema = balance_schema()
+      assert :ok = ExJsonSchema.Validator.validate(schema, response)
     end
 
     test "with a single address", %{conn: conn} do
@@ -422,6 +452,9 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["result"] == expected_result
       assert response["status"] == "1"
       assert response["message"] == "OK"
+
+      schema = balance_schema()
+      assert :ok = ExJsonSchema.Validator.validate(schema, response)
     end
 
     test "supports GET and POST requests", %{conn: conn} do
@@ -471,6 +504,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(txlist_schema(), response)
     end
 
     test "with an invalid address hash", %{conn: conn} do
@@ -489,6 +523,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(txlist_schema(), response)
     end
 
     test "with an address that doesn't exist", %{conn: conn} do
@@ -506,6 +541,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["result"] == []
       assert response["status"] == "0"
       assert response["message"] == "No transactions found"
+      assert :ok = ExJsonSchema.Validator.validate(txlist_schema(), response)
     end
 
     test "with a valid address", %{conn: conn} do
@@ -556,6 +592,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["result"] == expected_result
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(txlist_schema(), response)
     end
 
     test "includes correct confirmations value", %{conn: conn} do
@@ -580,12 +617,14 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       expected_confirmations = block_height - transaction.block_number
 
       assert %{"result" => [returned_transaction]} =
+               response =
                conn
                |> get("/api", params)
                |> json_response(200)
 
       assert returned_transaction["confirmations"] == "#{expected_confirmations}"
       assert returned_transaction["hash"] == "#{hash}"
+      assert :ok = ExJsonSchema.Validator.validate(txlist_schema(), response)
     end
 
     test "returns '1' for 'isError' with failed transaction", %{conn: conn} do
@@ -605,6 +644,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       }
 
       assert %{"result" => [returned_transaction]} =
+               response =
                conn
                |> get("/api", params)
                |> json_response(200)
@@ -612,6 +652,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert returned_transaction["isError"] == "1"
       assert returned_transaction["txreceipt_status"] == "0"
       assert returned_transaction["hash"] == "#{hash}"
+      assert :ok = ExJsonSchema.Validator.validate(txlist_schema(), response)
     end
 
     test "with address with multiple transactions", %{conn: conn} do
@@ -648,6 +689,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
 
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(txlist_schema(), response)
     end
 
     test "orders transactions by block, in ascending order", %{conn: conn} do
@@ -688,6 +730,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert block_numbers_order == Enum.sort(block_numbers_order, &(&1 <= &2))
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(txlist_schema(), response)
     end
 
     test "orders transactions by block, in descending order", %{conn: conn} do
@@ -728,6 +771,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert block_numbers_order == Enum.sort(block_numbers_order, &(&1 >= &2))
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(txlist_schema(), response)
     end
 
     test "ignores invalid sort option, defaults to ascending", %{conn: conn} do
@@ -768,6 +812,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert block_numbers_order == Enum.sort(block_numbers_order, &(&1 <= &2))
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(txlist_schema(), response)
     end
 
     test "with valid pagination params", %{conn: conn} do
@@ -821,6 +866,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
 
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(txlist_schema(), response)
     end
 
     test "ignores pagination params when invalid", %{conn: conn} do
@@ -862,6 +908,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert length(response["result"]) == 6
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(txlist_schema(), response)
     end
 
     test "ignores offset param if offset is less than 1", %{conn: conn} do
@@ -889,6 +936,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert length(response["result"]) == 6
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(txlist_schema(), response)
     end
 
     test "ignores offset param if offset is over 10,000", %{conn: conn} do
@@ -916,6 +964,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert length(response["result"]) == 6
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(txlist_schema(), response)
     end
 
     test "with page number with no results", %{conn: conn} do
@@ -957,6 +1006,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["result"] == []
       assert response["status"] == "0"
       assert response["message"] == "No transactions found"
+      assert :ok = ExJsonSchema.Validator.validate(txlist_schema(), response)
     end
 
     test "with startblock and endblock params", %{conn: conn} do
@@ -995,6 +1045,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
 
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(txlist_schema(), response)
     end
 
     test "with startblock but without endblock", %{conn: conn} do
@@ -1032,6 +1083,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
 
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(txlist_schema(), response)
     end
 
     test "with endblock but without startblock", %{conn: conn} do
@@ -1069,6 +1121,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
 
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(txlist_schema(), response)
     end
 
     test "ignores invalid startblock and endblock", %{conn: conn} do
@@ -1097,6 +1150,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert length(response["result"]) == 8
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(txlist_schema(), response)
     end
 
     test "with starttimestamp and endtimestamp params", %{conn: conn} do
@@ -1144,6 +1198,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
 
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(txlist_schema(), response)
     end
 
     test "with starttimestamp but without endtimestamp", %{conn: conn} do
@@ -1191,6 +1246,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
 
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(txlist_schema(), response)
     end
 
     test "with endtimestamp but without starttimestamp", %{conn: conn} do
@@ -1236,6 +1292,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
 
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(txlist_schema(), response)
     end
 
     test "with filterby=to option", %{conn: conn} do
@@ -1263,6 +1320,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert length(response["result"]) == 1
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(txlist_schema(), response)
     end
 
     test "with filterby=from option", %{conn: conn} do
@@ -1293,6 +1351,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert length(response["result"]) == 2
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(txlist_schema(), response)
     end
 
     test "supports GET and POST requests", %{conn: conn} do
@@ -1338,6 +1397,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(txlistinternal_schema(), response)
     end
   end
 
@@ -1358,6 +1418,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(txlistinternal_schema(), response)
     end
 
     test "with a txhash that doesn't exist", %{conn: conn} do
@@ -1375,6 +1436,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["result"] == []
       assert response["status"] == "0"
       assert response["message"] == "No internal transactions found"
+      assert :ok = ExJsonSchema.Validator.validate(txlistinternal_schema(), response)
     end
 
     test "response includes all the expected fields", %{conn: conn} do
@@ -1427,6 +1489,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["result"] == expected_result
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(txlistinternal_schema(), response)
     end
 
     test "isError is true if internal transaction has an error", %{conn: conn} do
@@ -1459,6 +1522,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert found_internal_transaction["isError"] == "1"
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(txlistinternal_schema(), response)
     end
 
     test "with transaction with multiple internal transactions", %{conn: conn} do
@@ -1486,6 +1550,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert length(found_internal_transactions) == 3
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(txlistinternal_schema(), response)
     end
   end
 
@@ -1506,6 +1571,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(txlistinternal_schema(), response)
     end
 
     test "with a address that doesn't exist", %{conn: conn} do
@@ -1523,6 +1589,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["result"] == []
       assert response["status"] == "0"
       assert response["message"] == "No internal transactions found"
+      assert :ok = ExJsonSchema.Validator.validate(txlistinternal_schema(), response)
     end
 
     test "response includes all the expected fields", %{conn: conn} do
@@ -1575,6 +1642,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["result"] == expected_result
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(txlistinternal_schema(), response)
     end
 
     test "isError is true if internal transaction has an error", %{conn: conn} do
@@ -1610,6 +1678,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert found_internal_transaction["isError"] == "1"
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(txlistinternal_schema(), response)
     end
 
     test "with transaction with multiple internal transactions", %{conn: conn} do
@@ -1645,6 +1714,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert length(found_internal_transactions) == 3
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(txlistinternal_schema(), response)
     end
   end
 
@@ -1664,6 +1734,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(tokentx_schema(), response)
     end
 
     test "with an invalid address hash", %{conn: conn} do
@@ -1682,6 +1753,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(tokentx_schema(), response)
     end
 
     test "with an address that doesn't exist", %{conn: conn} do
@@ -1699,6 +1771,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["result"] == []
       assert response["status"] == "0"
       assert response["message"] == "No token transfers found"
+      assert :ok = ExJsonSchema.Validator.validate(tokentx_schema(), response)
     end
 
     test "has correct value for ERC-721", %{conn: conn} do
@@ -1734,6 +1807,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert result["value"] == to_string(token_transfer.token_id)
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(tokentx_schema(), response)
     end
 
     test "returns all the required fields", %{conn: conn} do
@@ -1785,6 +1859,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["result"] == expected_result
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(tokentx_schema(), response)
     end
 
     test "with an invalid contract address", %{conn: conn} do
@@ -1804,6 +1879,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(tokentx_schema(), response)
     end
 
     test "filters results by contract address", %{conn: conn} do
@@ -1837,6 +1913,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert result["contractAddress"] == to_string(contract_address.hash)
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(tokentx_schema(), response)
     end
   end
 
@@ -1856,6 +1933,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(tokenbalance_schema(), response)
     end
 
     test "with contractaddress but without address", %{conn: conn} do
@@ -1874,6 +1952,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(tokenbalance_schema(), response)
     end
 
     test "with address but without contractaddress", %{conn: conn} do
@@ -1892,6 +1971,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(tokenbalance_schema(), response)
     end
 
     test "with an invalid contractaddress hash", %{conn: conn} do
@@ -1911,6 +1991,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(tokenbalance_schema(), response)
     end
 
     test "with an invalid address hash", %{conn: conn} do
@@ -1930,6 +2011,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(tokenbalance_schema(), response)
     end
 
     test "with a contractaddress and address that doesn't exist", %{conn: conn} do
@@ -1948,6 +2030,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["result"] == "0"
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(tokenbalance_schema(), response)
     end
 
     test "with contractaddress and address without row in token_balances table", %{conn: conn} do
@@ -1969,6 +2052,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["result"] == "0"
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(tokenbalance_schema(), response)
     end
 
     test "with contractaddress and address with existing balance in token_balances table", %{conn: conn} do
@@ -1989,6 +2073,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["result"] == to_string(token_balance.value)
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(tokenbalance_schema(), response)
     end
   end
 
@@ -2008,6 +2093,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(tokenlist_schema(), response)
     end
 
     test "with an invalid address hash", %{conn: conn} do
@@ -2026,6 +2112,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(tokenlist_schema(), response)
     end
 
     test "with an address that doesn't exist", %{conn: conn} do
@@ -2043,6 +2130,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["result"] == []
       assert response["status"] == "0"
       assert response["message"] == "No tokens found"
+      assert :ok = ExJsonSchema.Validator.validate(tokenlist_schema(), response)
     end
 
     test "with an address without row in token_balances table", %{conn: conn} do
@@ -2062,6 +2150,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["result"] == []
       assert response["status"] == "0"
       assert response["message"] == "No tokens found"
+      assert :ok = ExJsonSchema.Validator.validate(tokenlist_schema(), response)
     end
 
     test "with address with existing balance in token_balances table", %{conn: conn} do
@@ -2092,6 +2181,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["result"] == expected_result
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(tokenlist_schema(), response)
     end
 
     test "with address with multiple tokens", %{conn: conn} do
@@ -2115,6 +2205,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert length(response["result"]) == 2
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(tokenlist_schema(), response)
     end
   end
 
@@ -2134,6 +2225,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(block_schema(), response)
     end
 
     test "with an invalid address hash", %{conn: conn} do
@@ -2152,6 +2244,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(block_schema(), response)
     end
 
     test "with an address that doesn't exist", %{conn: conn} do
@@ -2169,6 +2262,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["result"] == []
       assert response["status"] == "0"
       assert response["message"] == "No blocks found"
+      assert :ok = ExJsonSchema.Validator.validate(block_schema(), response)
     end
 
     test "returns all the required fields", %{conn: conn} do
@@ -2208,6 +2302,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["result"] == expected_result
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(block_schema(), response)
     end
 
     test "with a block with one transaction", %{conn: conn} do
@@ -2247,6 +2342,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["result"] == expected_result
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(block_schema(), response)
     end
 
     test "with pagination options", %{conn: conn} do
@@ -2297,6 +2393,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["result"] == expected_result
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(block_schema(), response)
     end
   end
 
@@ -2439,4 +2536,162 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert result == {:required_params, {:ok, params}}
     end
   end
+
+  defp listaccounts_schema do
+    resolve_schema(%{
+      "type" => "array",
+      "items" => %{
+        "type" => "object",
+        "properties" => %{
+          "address" => %{"type" => "string"},
+          "balance" => %{"type" => "string"},
+          "stale" => %{"type" => "boolean"}
+        }
+      }
+    })
+  end
+
+  defp balance_schema do
+    resolve_schema(%{
+      "type" => ["string", "null", "array"],
+      "items" => %{
+        "type" => "object",
+        "properties" => %{
+          "account" => %{"type" => "string"},
+          "balance" => %{"type" => "string"},
+          "stale" => %{"type" => "boolean"}
+        }
+      }
+    })
+  end
+
+  defp txlist_schema do
+    resolve_schema(%{
+      "type" => ["null", "array"],
+      "items" => %{
+        "type" => "object",
+        "properties" => %{
+          "blockNumber" => %{"type" => "string"},
+          "timeStamp" => %{"type" => "string"},
+          "hash" => %{"type" => "string"},
+          "nonce" => %{"type" => "string"},
+          "blockHash" => %{"type" => "string"},
+          "transactionIndex" => %{"type" => "string"},
+          "from" => %{"type" => "string"},
+          "to" => %{"type" => "string"},
+          "value" => %{"type" => "string"},
+          "gas" => %{"type" => "string"},
+          "gasPrice" => %{"type" => "string"},
+          "isError" => %{"type" => "string"},
+          "txreceipt_status" => %{"type" => "string"},
+          "input" => %{"type" => "string"},
+          "contractAddress" => %{"type" => "string"},
+          "cumulativeGasUsed" => %{"type" => "string"},
+          "gasUsed" => %{"type" => "string"},
+          "confirmations" => %{"type" => "string"}
+        }
+      }
+    })
+  end
+
+  defp txlistinternal_schema do
+    resolve_schema(%{
+      "type" => ["array", "null"],
+      "items" => %{
+        "type" => "object",
+        "properties" => %{
+          "blockNumber" => %{"type" => "string"},
+          "timeStamp" => %{"type" => "string"},
+          "from" => %{"type" => "string"},
+          "to" => %{"type" => "string"},
+          "value" => %{"type" => "string"},
+          "contractAddress" => %{"type" => "string"},
+          "transactionHash" => %{"type" => "string"},
+          "index" => %{"type" => "string"},
+          "input" => %{"type" => "string"},
+          "type" => %{"type" => "string"},
+          "gas" => %{"type" => "string"},
+          "gasUsed" => %{"type" => "string"},
+          "isError" => %{"type" => "string"},
+          "errCode" => %{"type" => "string"}
+        }
+      }
+    })
+  end
+
+  defp tokentx_schema do
+    resolve_schema(%{
+      "type" => ["array", "null"],
+      "items" => %{
+        "type" => "object",
+        "properties" => %{
+          "blockNumber" => %{"type" => "string"},
+          "timeStamp" => %{"type" => "string"},
+          "hash" => %{"type" => "string"},
+          "nonce" => %{"type" => "string"},
+          "blockHash" => %{"type" => "string"},
+          "from" => %{"type" => "string"},
+          "contractAddress" => %{"type" => "string"},
+          "to" => %{"type" => "string"},
+          "logIndex" => %{"type" => "string"},
+          "value" => %{"type" => "string"},
+          "tokenName" => %{"type" => "string"},
+          "tokenSymbol" => %{"type" => "string"},
+          "tokenDecimal" => %{"type" => "string"},
+          "transactionIndex" => %{"type" => "string"},
+          "gas" => %{"type" => "string"},
+          "gasPrice" => %{"type" => "string"},
+          "gasUsed" => %{"type" => "string"},
+          "cumulativeGasUsed" => %{"type" => "string"},
+          "input" => %{"type" => "string"},
+          "confirmations" => %{"type" => "string"}
+        }
+      }
+    })
+  end
+
+  defp tokenbalance_schema, do: resolve_schema(%{"type" => ["string", "null"]})
+
+  defp tokenlist_schema do
+    resolve_schema(%{
+      "type" => ["array", "null"],
+      "items" => %{
+        "type" => "object",
+        "properties" => %{
+          "balance" => %{"type" => "string"},
+          "contractAddress" => %{"type" => "string"},
+          "name" => %{"type" => "string"},
+          "decimals" => %{"type" => "string"},
+          "symbol" => %{"type" => "string"},
+          "type" => %{"type" => "string"}
+        }
+      }
+    })
+  end
+
+  defp block_schema do
+    resolve_schema(%{
+      "type" => ["array", "null"],
+      "items" => %{
+        "type" => "object",
+        "properties" => %{
+          "blockNumber" => %{"type" => "string"},
+          "timeStamp" => %{"type" => "string"},
+          "blockReward" => %{"type" => "string"}
+        }
+      }
+    })
+  end
+
+  defp resolve_schema(result \\ %{}) do
+    %{
+      "type" => "object",
+      "properties" => %{
+        "message" => %{"type" => "string"},
+        "status" => %{"type" => "string"}
+      }
+    }
+    |> put_in(["properties", "result"], result)
+    |> ExJsonSchema.Schema.resolve()
+  end
 end
diff --git a/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/block_controller_test.exs b/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/block_controller_test.exs
index bda89fe49a..50ab2f18f3 100644
--- a/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/block_controller_test.exs
+++ b/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/block_controller_test.exs
@@ -14,6 +14,8 @@ defmodule BlockScoutWeb.API.RPC.BlockControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      schema = resolve_schema()
+      assert :ok = ExJsonSchema.Validator.validate(schema, response)
     end
 
     test "with an invalid block number", %{conn: conn} do
@@ -26,6 +28,8 @@ defmodule BlockScoutWeb.API.RPC.BlockControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      schema = resolve_schema()
+      assert :ok = ExJsonSchema.Validator.validate(schema, response)
     end
 
     test "with a block that doesn't exist", %{conn: conn} do
@@ -38,6 +42,8 @@ defmodule BlockScoutWeb.API.RPC.BlockControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      schema = resolve_schema()
+      assert :ok = ExJsonSchema.Validator.validate(schema, response)
     end
 
     test "with a valid block", %{conn: conn} do
@@ -71,6 +77,29 @@ defmodule BlockScoutWeb.API.RPC.BlockControllerTest do
       assert response["result"] == expected_result
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      schema = resolve_schema()
+      assert :ok = ExJsonSchema.Validator.validate(schema, response)
     end
   end
+
+  defp resolve_schema() do
+    ExJsonSchema.Schema.resolve(%{
+      "type" => "object",
+      "properties" => %{
+        "message" => %{"type" => "string"},
+        "status" => %{"type" => "string"},
+        "result" => %{
+          "type" => ["object", "null"],
+          "properties" => %{
+            "blockNumber" => %{"type" => "string"},
+            "timeStamp" => %{"type" => "number"},
+            "blockMiner" => %{"type" => "string"},
+            "blockReward" => %{"type" => "string"},
+            "uncles" => %{"type" => "null"},
+            "uncleInclusionReward" => %{"type" => "null"}
+          }
+        }
+      }
+    })
+  end
 end
diff --git a/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/contract_controller_test.exs b/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/contract_controller_test.exs
index e070cf8e57..3fbd1713bb 100644
--- a/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/contract_controller_test.exs
+++ b/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/contract_controller_test.exs
@@ -17,6 +17,7 @@ defmodule BlockScoutWeb.API.RPC.ContractControllerTest do
                "invalid is not a valid value for `filter`. Please use one of: verified, decompiled, unverified, not_decompiled, 1, 2, 3, 4."
 
       assert response["status"] == "0"
+      assert :ok = ExJsonSchema.Validator.validate(listcontracts_schema(), response)
     end
 
     test "with no contracts", %{conn: conn, params: params} do
@@ -28,6 +29,7 @@ defmodule BlockScoutWeb.API.RPC.ContractControllerTest do
       assert response["message"] == "OK"
       assert response["status"] == "1"
       assert response["result"] == []
+      assert :ok = ExJsonSchema.Validator.validate(listcontracts_schema(), response)
     end
 
     test "with a verified smart contract, all contract information is shown", %{conn: conn, params: params} do
@@ -50,6 +52,8 @@ defmodule BlockScoutWeb.API.RPC.ContractControllerTest do
                  "OptimizationUsed" => if(contract.optimization, do: "1", else: "0")
                }
              ]
+
+      assert :ok = ExJsonSchema.Validator.validate(listcontracts_schema(), response)
     end
 
     test "with an unverified contract address, only basic information is shown", %{conn: conn, params: params} do
@@ -72,6 +76,8 @@ defmodule BlockScoutWeb.API.RPC.ContractControllerTest do
                  "OptimizationUsed" => ""
                }
              ]
+
+      assert :ok = ExJsonSchema.Validator.validate(listcontracts_schema(), response)
     end
 
     test "filtering for only unverified contracts shows only unverified contracts", %{params: params, conn: conn} do
@@ -95,6 +101,8 @@ defmodule BlockScoutWeb.API.RPC.ContractControllerTest do
                  "OptimizationUsed" => ""
                }
              ]
+
+      assert :ok = ExJsonSchema.Validator.validate(listcontracts_schema(), response)
     end
 
     test "filtering for only unverified contracts does not show self destructed contracts", %{
@@ -122,6 +130,8 @@ defmodule BlockScoutWeb.API.RPC.ContractControllerTest do
                  "OptimizationUsed" => ""
                }
              ]
+
+      assert :ok = ExJsonSchema.Validator.validate(listcontracts_schema(), response)
     end
 
     test "filtering for only verified contracts shows only verified contracts", %{params: params, conn: conn} do
@@ -145,6 +155,8 @@ defmodule BlockScoutWeb.API.RPC.ContractControllerTest do
                  "OptimizationUsed" => if(contract.optimization, do: "1", else: "0")
                }
              ]
+
+      assert :ok = ExJsonSchema.Validator.validate(listcontracts_schema(), response)
     end
 
     test "filtering for only decompiled contracts shows only decompiled contracts", %{params: params, conn: conn} do
@@ -168,6 +180,8 @@ defmodule BlockScoutWeb.API.RPC.ContractControllerTest do
                  "OptimizationUsed" => ""
                }
              ]
+
+      assert :ok = ExJsonSchema.Validator.validate(listcontracts_schema(), response)
     end
 
     test "filtering for only decompiled contracts, with a decompiled with version filter", %{params: params, conn: conn} do
@@ -191,6 +205,8 @@ defmodule BlockScoutWeb.API.RPC.ContractControllerTest do
                  "OptimizationUsed" => ""
                }
              ]
+
+      assert :ok = ExJsonSchema.Validator.validate(listcontracts_schema(), response)
     end
 
     test "filtering for only decompiled contracts, with a decompiled with version filter, where another decompiled version exists",
@@ -216,6 +232,7 @@ defmodule BlockScoutWeb.API.RPC.ContractControllerTest do
              } in response["result"]
 
       refute to_string(non_match.address_hash) in Enum.map(response["result"], &Map.get(&1, "Address"))
+      assert :ok = ExJsonSchema.Validator.validate(listcontracts_schema(), response)
     end
 
     test "filtering for only not_decompiled (and by extension not verified contracts)", %{params: params, conn: conn} do
@@ -240,6 +257,8 @@ defmodule BlockScoutWeb.API.RPC.ContractControllerTest do
                  "OptimizationUsed" => ""
                }
              ]
+
+      assert :ok = ExJsonSchema.Validator.validate(listcontracts_schema(), response)
     end
 
     test "filtering for only not_decompiled (and by extension not verified contracts) does not show empty contracts", %{
@@ -268,6 +287,8 @@ defmodule BlockScoutWeb.API.RPC.ContractControllerTest do
                  "OptimizationUsed" => ""
                }
              ]
+
+      assert :ok = ExJsonSchema.Validator.validate(listcontracts_schema(), response)
     end
   end
 
@@ -287,6 +308,7 @@ defmodule BlockScoutWeb.API.RPC.ContractControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(getabi_schema(), response)
     end
 
     test "with an invalid address hash", %{conn: conn} do
@@ -305,6 +327,7 @@ defmodule BlockScoutWeb.API.RPC.ContractControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(getabi_schema(), response)
     end
 
     test "with an address that doesn't exist", %{conn: conn} do
@@ -322,6 +345,7 @@ defmodule BlockScoutWeb.API.RPC.ContractControllerTest do
       assert response["result"] == nil
       assert response["status"] == "0"
       assert response["message"] == "Contract source code not verified"
+      assert :ok = ExJsonSchema.Validator.validate(getabi_schema(), response)
     end
 
     test "with a verified contract address", %{conn: conn} do
@@ -341,6 +365,7 @@ defmodule BlockScoutWeb.API.RPC.ContractControllerTest do
       assert response["result"] == Jason.encode!(contract.abi)
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(getabi_schema(), response)
     end
   end
 
@@ -360,6 +385,7 @@ defmodule BlockScoutWeb.API.RPC.ContractControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(getsourcecode_schema(), response)
     end
 
     test "with an invalid address hash", %{conn: conn} do
@@ -378,6 +404,7 @@ defmodule BlockScoutWeb.API.RPC.ContractControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(getsourcecode_schema(), response)
     end
 
     test "with an address that doesn't exist", %{conn: conn} do
@@ -408,6 +435,7 @@ defmodule BlockScoutWeb.API.RPC.ContractControllerTest do
       assert response["result"] == expected_result
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(getsourcecode_schema(), response)
     end
 
     test "with a verified contract address", %{conn: conn} do
@@ -443,6 +471,7 @@ defmodule BlockScoutWeb.API.RPC.ContractControllerTest do
       assert response["result"] == expected_result
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(getsourcecode_schema(), response)
     end
   end
 
@@ -481,6 +510,7 @@ defmodule BlockScoutWeb.API.RPC.ContractControllerTest do
       assert response["status"] == "1"
       assert response["result"] == expected_result
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(verify_schema(), response)
     end
 
     test "with external libraries", %{conn: conn} do
@@ -539,6 +569,76 @@ defmodule BlockScoutWeb.API.RPC.ContractControllerTest do
       assert result["DecompiledSourceCode"] == "Contract source code not decompiled."
       assert result["DecompilerVersion"] == ""
       assert result["OptimizationUsed"] == "1"
+      assert :ok = ExJsonSchema.Validator.validate(verify_schema(), response)
     end
   end
+
+  defp listcontracts_schema do
+    resolve_schema(%{
+      "type" => ["array", "null"],
+      "items" => %{
+        "type" => "object",
+        "properties" => %{
+          "Address" => %{"type" => "string"},
+          "ABI" => %{"type" => "string"},
+          "ContractName" => %{"type" => "string"},
+          "CompilerVersion" => %{"type" => "string"},
+          "OptimizationUsed" => %{"type" => "string"}
+        }
+      }
+    })
+  end
+
+  defp getabi_schema do
+    resolve_schema(%{
+      "type" => ["string", "null"]
+    })
+  end
+
+  defp getsourcecode_schema do
+    resolve_schema(%{
+      "type" => ["array", "null"],
+      "items" => %{
+        "type" => "object",
+        "properties" => %{
+          "Address" => %{"type" => "string"},
+          "SourceCode" => %{"type" => "string"},
+          "ABI" => %{"type" => "string"},
+          "ContractName" => %{"type" => "string"},
+          "CompilerVersion" => %{"type" => "string"},
+          "OptimizationUsed" => %{"type" => "string"},
+          "DecompiledSourceCode" => %{"type" => "string"},
+          "DecompilerVersion" => %{"type" => "string"}
+        }
+      }
+    })
+  end
+
+  defp verify_schema do
+    resolve_schema(%{
+      "type" => "object",
+      "properties" => %{
+        "Address" => %{"type" => "string"},
+        "SourceCode" => %{"type" => "string"},
+        "ABI" => %{"type" => "string"},
+        "ContractName" => %{"type" => "string"},
+        "CompilerVersion" => %{"type" => "string"},
+        "DecompiledSourceCode" => %{"type" => "string"},
+        "DecompilerVersion" => %{"type" => "string"},
+        "OptimizationUsed" => %{"type" => "string"}
+      }
+    })
+  end
+
+  defp resolve_schema(result \\ %{}) do
+    %{
+      "type" => "object",
+      "properties" => %{
+        "message" => %{"type" => "string"},
+        "status" => %{"type" => "string"}
+      }
+    }
+    |> put_in(["properties", "result"], result)
+    |> ExJsonSchema.Schema.resolve()
+  end
 end
diff --git a/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/logs_controller_test.exs b/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/logs_controller_test.exs
index 454db88e86..0b129939b8 100644
--- a/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/logs_controller_test.exs
+++ b/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/logs_controller_test.exs
@@ -22,6 +22,7 @@ defmodule BlockScoutWeb.API.RPC.LogsControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(getlogs_schema(), response)
     end
 
     test "without fromBlock", %{conn: conn} do
@@ -43,6 +44,7 @@ defmodule BlockScoutWeb.API.RPC.LogsControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(getlogs_schema(), response)
     end
 
     test "without toBlock", %{conn: conn} do
@@ -64,6 +66,7 @@ defmodule BlockScoutWeb.API.RPC.LogsControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(getlogs_schema(), response)
     end
 
     test "without address and topic{x}", %{conn: conn} do
@@ -85,6 +88,7 @@ defmodule BlockScoutWeb.API.RPC.LogsControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(getlogs_schema(), response)
     end
 
     test "without topic{x}_{x}_opr", %{conn: conn} do
@@ -118,6 +122,7 @@ defmodule BlockScoutWeb.API.RPC.LogsControllerTest do
         assert response["status"] == "0"
         assert Map.has_key?(response, "result")
         refute response["result"]
+        assert :ok = ExJsonSchema.Validator.validate(getlogs_schema(), response)
       end
     end
 
@@ -146,6 +151,7 @@ defmodule BlockScoutWeb.API.RPC.LogsControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(getlogs_schema(), response)
     end
 
     test "with invalid fromBlock", %{conn: conn} do
@@ -166,6 +172,7 @@ defmodule BlockScoutWeb.API.RPC.LogsControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(getlogs_schema(), response)
     end
 
     test "with invalid toBlock", %{conn: conn} do
@@ -186,6 +193,7 @@ defmodule BlockScoutWeb.API.RPC.LogsControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(getlogs_schema(), response)
     end
 
     test "with an invalid address hash", %{conn: conn} do
@@ -206,6 +214,7 @@ defmodule BlockScoutWeb.API.RPC.LogsControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(getlogs_schema(), response)
     end
 
     test "with invalid topic{x}_{x}_opr", %{conn: conn} do
@@ -238,6 +247,7 @@ defmodule BlockScoutWeb.API.RPC.LogsControllerTest do
         assert response["status"] == "0"
         assert Map.has_key?(response, "result")
         refute response["result"]
+        assert :ok = ExJsonSchema.Validator.validate(getlogs_schema(), response)
       end
     end
 
@@ -258,6 +268,7 @@ defmodule BlockScoutWeb.API.RPC.LogsControllerTest do
       assert response["result"] == []
       assert response["status"] == "0"
       assert response["message"] == "No logs found"
+      assert :ok = ExJsonSchema.Validator.validate(getlogs_schema(), response)
     end
 
     test "with a valid contract address", %{conn: conn} do
@@ -302,6 +313,7 @@ defmodule BlockScoutWeb.API.RPC.LogsControllerTest do
       assert response["result"] == expected_result
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(getlogs_schema(), response)
     end
 
     test "ignores logs with block below fromBlock", %{conn: conn} do
@@ -340,6 +352,7 @@ defmodule BlockScoutWeb.API.RPC.LogsControllerTest do
 
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(getlogs_schema(), response)
 
       [found_log] = response["result"]
 
@@ -383,6 +396,7 @@ defmodule BlockScoutWeb.API.RPC.LogsControllerTest do
 
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(getlogs_schema(), response)
 
       [found_log] = response["result"]
 
@@ -445,6 +459,7 @@ defmodule BlockScoutWeb.API.RPC.LogsControllerTest do
       assert response["result"] == expected_result
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(getlogs_schema(), response)
     end
 
     test "with a topic{x} AND another", %{conn: conn} do
@@ -493,6 +508,7 @@ defmodule BlockScoutWeb.API.RPC.LogsControllerTest do
       assert found_log["topics"] == get_topics(log1)
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(getlogs_schema(), response)
     end
 
     test "with a topic{x} OR another", %{conn: conn} do
@@ -540,6 +556,7 @@ defmodule BlockScoutWeb.API.RPC.LogsControllerTest do
       assert length(result) == 2
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(getlogs_schema(), response)
     end
 
     test "with all available 'topic{x}'s and 'topic{x}_{x}_opr's", %{conn: conn} do
@@ -598,6 +615,7 @@ defmodule BlockScoutWeb.API.RPC.LogsControllerTest do
       assert length(result) == 2
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(getlogs_schema(), response)
     end
   end
 
@@ -771,4 +789,32 @@ defmodule BlockScoutWeb.API.RPC.LogsControllerTest do
     |> DateTime.to_unix()
     |> integer_to_hex()
   end
+
+  defp getlogs_schema do
+    ExJsonSchema.Schema.resolve(%{
+      "type" => "object",
+      "properties" => %{
+        "message" => %{"type" => "string"},
+        "status" => %{"type" => "string"},
+        "result" => %{
+          "type" => ["array", "null"],
+          "items" => %{
+            "type" => "object",
+            "properties" => %{
+              "address" => %{"type" => "string"},
+              "topics" => %{"type" => "array", "items" => %{"type" => ["string", "null"]}},
+              "data" => %{"type" => "string"},
+              "blockNumber" => %{"type" => "string"},
+              "timeStamp" => %{"type" => "string"},
+              "gasPrice" => %{"type" => "string"},
+              "gasUsed" => %{"type" => "string"},
+              "logIndex" => %{"type" => "string"},
+              "transactionHash" => %{"type" => "string"},
+              "transactionIndex" => %{"type" => "string"}
+            }
+          }
+        }
+      }
+    })
+  end
 end
diff --git a/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/stats_controller_test.exs b/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/stats_controller_test.exs
index 9a7c26e9ee..bf3b82a3cb 100644
--- a/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/stats_controller_test.exs
+++ b/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/stats_controller_test.exs
@@ -23,6 +23,7 @@ defmodule BlockScoutWeb.API.RPC.StatsControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(tokensupply_schema(), response)
     end
 
     test "with an invalid contractaddress hash", %{conn: conn} do
@@ -41,6 +42,7 @@ defmodule BlockScoutWeb.API.RPC.StatsControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(tokensupply_schema(), response)
     end
 
     test "with a contractaddress that doesn't exist", %{conn: conn} do
@@ -59,6 +61,7 @@ defmodule BlockScoutWeb.API.RPC.StatsControllerTest do
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
       refute response["result"]
+      assert :ok = ExJsonSchema.Validator.validate(tokensupply_schema(), response)
     end
 
     test "with valid contractaddress", %{conn: conn} do
@@ -78,6 +81,7 @@ defmodule BlockScoutWeb.API.RPC.StatsControllerTest do
       assert response["result"] == to_string(token.total_supply)
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(tokensupply_schema(), response)
     end
   end
 
@@ -96,6 +100,7 @@ defmodule BlockScoutWeb.API.RPC.StatsControllerTest do
       assert response["result"] == "252460800000000000000000000"
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(ethsupply_schema(), response)
     end
   end
 
@@ -158,6 +163,43 @@ defmodule BlockScoutWeb.API.RPC.StatsControllerTest do
       assert response["result"] == expected_result
       assert response["status"] == "1"
       assert response["message"] == "OK"
+      assert :ok = ExJsonSchema.Validator.validate(ethprice_schema(), response)
     end
   end
+
+  defp tokensupply_schema do
+    resolve_schema(%{
+      "type" => ["string", "null"]
+    })
+  end
+
+  defp ethsupply_schema do
+    resolve_schema(%{
+      "type" => ["string", "null"]
+    })
+  end
+
+  defp ethprice_schema do
+    resolve_schema(%{
+      "type" => "object",
+      "properties" => %{
+        "ethbtc" => %{"type" => "string"},
+        "ethbtc_timestamp" => %{"type" => "string"},
+        "ethusd" => %{"type" => "string"},
+        "ethusd_timestamp" => %{"type" => "string"}
+      }
+    })
+  end
+
+  defp resolve_schema(result \\ %{}) do
+    %{
+      "type" => "object",
+      "properties" => %{
+        "message" => %{"type" => "string"},
+        "status" => %{"type" => "string"}
+      }
+    }
+    |> put_in(["properties", "result"], result)
+    |> ExJsonSchema.Schema.resolve()
+  end
 end
diff --git a/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/token_controller_test.exs b/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/token_controller_test.exs
index 88196b8e40..a640a87441 100644
--- a/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/token_controller_test.exs
+++ b/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/token_controller_test.exs
@@ -84,4 +84,26 @@ defmodule BlockScoutWeb.API.RPC.TokenControllerTest do
       assert response["message"] == "OK"
     end
   end
+
+  defp gettoken_schema do
+    ExJsonSchema.Schema.resolve(%{
+      "type" => "object",
+      "properties" => %{
+        "message" => %{"type" => "string"},
+        "status" => %{"type" => "string"},
+        "result" => %{
+          "type" => "object",
+          "properties" => %{
+            "name" => %{"type" => "string"},
+            "symbol" => %{"type" => "string"},
+            "totalSupply" => %{"type" => "string"},
+            "decimals" => %{"type" => "string"},
+            "type" => %{"type" => "string"},
+            "cataloged" => %{"type" => "string"},
+            "contractAddress" => %{"type" => "string"}
+          }
+        }
+      }
+    })
+  end
 end
diff --git a/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/transaction_controller_test.exs b/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/transaction_controller_test.exs
index 1ac026bc3c..0ab9743bf7 100644
--- a/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/transaction_controller_test.exs
+++ b/apps/block_scout_web/test/block_scout_web/controllers/api/rpc/transaction_controller_test.exs
@@ -15,6 +15,8 @@ defmodule BlockScoutWeb.API.RPC.TransactionControllerTest do
                |> get("/api", params)
                |> json_response(200)
 
+      schema = resolve_schema()
+      assert ExJsonSchema.Validator.valid?(schema, response)
       assert response["message"] =~ "txhash is required"
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
@@ -33,6 +35,8 @@ defmodule BlockScoutWeb.API.RPC.TransactionControllerTest do
                |> get("/api", params)
                |> json_response(200)
 
+      schema = resolve_schema()
+      assert ExJsonSchema.Validator.valid?(schema, response)
       assert response["message"] =~ "Invalid txhash format"
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
@@ -46,11 +50,20 @@ defmodule BlockScoutWeb.API.RPC.TransactionControllerTest do
         "txhash" => "0x40eb908387324f2b575b4879cd9d7188f69c8fc9d87c901b9e2daaea4b442170"
       }
 
+      schema =
+        resolve_schema(%{
+          "type" => "object",
+          "properties" => %{
+            "status" => %{"type" => "string"}
+          }
+        })
+
       assert response =
                conn
                |> get("/api", params)
                |> json_response(200)
 
+      assert ExJsonSchema.Validator.valid?(schema, response)
       assert response["result"] == %{"status" => ""}
       assert response["status"] == "1"
       assert response["message"] == "OK"
@@ -136,6 +149,8 @@ defmodule BlockScoutWeb.API.RPC.TransactionControllerTest do
                |> get("/api", params)
                |> json_response(200)
 
+      schema = resolve_schema()
+      assert ExJsonSchema.Validator.valid?(schema, response)
       assert response["message"] =~ "txhash is required"
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
@@ -154,6 +169,8 @@ defmodule BlockScoutWeb.API.RPC.TransactionControllerTest do
                |> get("/api", params)
                |> json_response(200)
 
+      schema = resolve_schema()
+      assert ExJsonSchema.Validator.valid?(schema, response)
       assert response["message"] =~ "Invalid txhash format"
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
@@ -172,11 +189,21 @@ defmodule BlockScoutWeb.API.RPC.TransactionControllerTest do
         "errDescription" => ""
       }
 
+      schema =
+        resolve_schema(%{
+          "type" => "object",
+          "properties" => %{
+            "isError" => %{"type" => "string"},
+            "errDescription" => %{"type" => "string"}
+          }
+        })
+
       assert response =
                conn
                |> get("/api", params)
                |> json_response(200)
 
+      assert ExJsonSchema.Validator.valid?(schema, response)
       assert response["result"] == expected_result
       assert response["status"] == "1"
       assert response["message"] == "OK"
@@ -325,6 +352,8 @@ defmodule BlockScoutWeb.API.RPC.TransactionControllerTest do
                |> get("/api", params)
                |> json_response(200)
 
+      schema = resolve_schema()
+      assert ExJsonSchema.Validator.valid?(schema, response)
       assert response["message"] =~ "txhash is required"
       assert response["status"] == "0"
       assert Map.has_key?(response, "result")
@@ -392,11 +421,32 @@ defmodule BlockScoutWeb.API.RPC.TransactionControllerTest do
         "txhash" => "#{transaction.hash}"
       }
 
+      schema =
+        resolve_schema(%{
+          "type" => "object",
+          "properties" => %{
+            "next_page_params" => %{
+              "type" => ["object", "null"],
+              "properties" => %{
+                "action" => %{"type" => "string"},
+                "index" => %{"type" => "number"},
+                "module" => %{"type" => "string"},
+                "txhash" => %{"type" => "string"}
+              }
+            },
+            "logs" => %{
+              "type" => "array",
+              "items" => %{"type" => "object"}
+            }
+          }
+        })
+
       assert response1 =
                conn
                |> get("/api", params1)
                |> json_response(200)
 
+      assert ExJsonSchema.Validator.valid?(schema, response1)
       assert response1["status"] == "1"
       assert response1["message"] == "OK"
 
@@ -414,6 +464,7 @@ defmodule BlockScoutWeb.API.RPC.TransactionControllerTest do
                |> get("/api", params2)
                |> json_response(200)
 
+      assert ExJsonSchema.Validator.valid?(schema, response2)
       assert response2["status"] == "1"
       assert response2["message"] == "OK"
       assert is_nil(response2["result"]["next_page_params"])
@@ -468,14 +519,70 @@ defmodule BlockScoutWeb.API.RPC.TransactionControllerTest do
         "next_page_params" => nil
       }
 
+      schema =
+        resolve_schema(%{
+          "type" => "object",
+          "properties" => %{
+            "hash" => %{"type" => "string"},
+            "timeStamp" => %{"type" => "string"},
+            "blockNumber" => %{"type" => "string"},
+            "confirmations" => %{"type" => "string"},
+            "success" => %{"type" => "boolean"},
+            "from" => %{"type" => "string"},
+            "to" => %{"type" => "string"},
+            "value" => %{"type" => "string"},
+            "input" => %{"type" => "string"},
+            "gasLimit" => %{"type" => "string"},
+            "gasUsed" => %{"type" => "string"},
+            "gasPrice" => %{"type" => "string"},
+            "logs" => %{
+              "type" => "array",
+              "items" => %{
+                "type" => "object",
+                "properties" => %{
+                  "address" => %{"type" => "string"},
+                  "data" => %{"type" => "string"},
+                  "topics" => %{
+                    "type" => "array",
+                    "items" => %{"type" => ["string", "null"]}
+                  },
+                  "index" => %{"type" => "string"}
+                }
+              }
+            },
+            "next_page_params" => %{
+              "type" => ["object", "null"],
+              "properties" => %{
+                "action" => %{"type" => "string"},
+                "index" => %{"type" => "number"},
+                "module" => %{"type" => "string"},
+                "txhash" => %{"type" => "string"}
+              }
+            }
+          }
+        })
+
       assert response =
                conn
                |> get("/api", params)
                |> json_response(200)
 
+      assert ExJsonSchema.Validator.valid?(schema, response)
       assert response["result"] == expected_result
       assert response["status"] == "1"
       assert response["message"] == "OK"
     end
   end
+
+  defp resolve_schema(result \\ %{}) do
+    %{
+      "type" => "object",
+      "properties" => %{
+        "message" => %{"type" => "string"},
+        "status" => %{"type" => "string"}
+      }
+    }
+    |> put_in(["properties", "result"], result)
+    |> ExJsonSchema.Schema.resolve()
+  end
 end
diff --git a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/decode_error.ex b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/decode_error.ex
index 1b77eac048..5b2fea35cc 100644
--- a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/decode_error.ex
+++ b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/decode_error.ex
@@ -35,11 +35,23 @@ defmodule EthereumJSONRPC.DecodeError do
     %EthereumJSONRPC.DecodeError{request: request, response: response}
   end
 
+  @request_body_limit 700
+
   @impl Exception
   def message(%EthereumJSONRPC.DecodeError{
         request: %EthereumJSONRPC.DecodeError.Request{url: request_url, body: request_body},
         response: %EthereumJSONRPC.DecodeError.Response{status_code: response_status_code, body: response_body}
       }) do
+    request_body_binary = IO.iodata_to_binary(request_body)
+
+    truncated_request_body =
+      if byte_size(request_body_binary) < @request_body_limit do
+        request_body_binary
+      else
+        <<result::binary-size(@request_body_limit), _::binary>> = request_body_binary
+        result
+      end
+
     """
     Failed to decode Ethereum JSONRPC response:
 
@@ -47,7 +59,7 @@ defmodule EthereumJSONRPC.DecodeError do
 
         url: #{request_url}
 
-        body: #{IO.iodata_to_binary(request_body)}
+        body: #{truncated_request_body}
 
       response:
 
diff --git a/apps/explorer/priv/repo/migrations/20190807113117_create_suggested_indexes.exs b/apps/explorer/priv/repo/migrations/20190807113117_create_suggested_indexes.exs
new file mode 100644
index 0000000000..d44d610923
--- /dev/null
+++ b/apps/explorer/priv/repo/migrations/20190807113117_create_suggested_indexes.exs
@@ -0,0 +1,8 @@
+defmodule Explorer.Repo.Migrations.CreateSuggestedIndexes do
+  use Ecto.Migration
+
+  def change do
+    create_if_not_exists(index(:address_token_balances, [:block_number, :address_hash]))
+    create_if_not_exists(index(:block_rewards, [:block_hash]))
+  end
+end
diff --git a/mix.lock b/mix.lock
index c85605b868..d589137148 100644
--- a/mix.lock
+++ b/mix.lock
@@ -1,6 +1,6 @@
 %{
   "absinthe": {:hex, :absinthe, "1.4.16", "0933e4d9f12652b12115d5709c0293a1bf78a22578032e9ad0dad4efee6b9eb1", [:mix], [{:dataloader, "~> 1.0.0", [hex: :dataloader, repo: "hexpm", optional: true]}, {:decimal, "~> 1.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm"},
-  "absinthe_phoenix": {:git, "https://github.com/ayrat555/absinthe_phoenix.git", "4dbb73a25a0935a4d292e63876698e18534d835f", [branch: "master"]},
+  "absinthe_phoenix": {:git, "https://github.com/ayrat555/absinthe_phoenix.git", "4dbb73a25a0935a4d292e63876698e18534d835f", [branch: "ab-update-plug"]},
   "absinthe_plug": {:git, "https://github.com/ayrat555/absinthe_plug.git", "cbe1c170e11e60b3b0146b925a1ce6ec562840ce", [branch: "ab-enable-default-query"]},
   "absinthe_relay": {:hex, :absinthe_relay, "1.4.6", "ec0e2288994b388556247cf9601245abec785cdf206d6e844f2992d29de21624", [:mix], [{:absinthe, "~> 1.4.0", [hex: :absinthe, repo: "hexpm", optional: false]}, {:ecto, "~> 2.0 or ~> 3.0", [hex: :ecto, repo: "hexpm", optional: true]}], "hexpm"},
   "accept": {:hex, :accept, "0.3.5", "b33b127abca7cc948bbe6caa4c263369abf1347cfa9d8e699c6d214660f10cd1", [:rebar3], [], "hexpm"},
@@ -39,6 +39,7 @@
   "ex_cldr_numbers": {:hex, :ex_cldr_numbers, "2.6.4", "5b1ac8451f889576bb29dee70412de1170974298727ab944aa4d17e91bdd3472", [:mix], [{:decimal, "~> 1.5", [hex: :decimal, repo: "hexpm", optional: false]}, {:ex_cldr, "~> 2.6", [hex: :ex_cldr, repo: "hexpm", optional: false]}, {:ex_cldr_currencies, "~> 2.3", [hex: :ex_cldr_currencies, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}], "hexpm"},
   "ex_cldr_units": {:hex, :ex_cldr_units, "2.5.1", "0e65067a22a7c5146266c313d6333c2700868c32aa6d536f47c6c0d84aac3ac1", [:mix], [{:ex_cldr, "~> 2.6", [hex: :ex_cldr, repo: "hexpm", optional: false]}, {:ex_cldr_lists, "~> 2.2", [hex: :ex_cldr_lists, repo: "hexpm", optional: false]}, {:ex_cldr_numbers, "~> 2.6", [hex: :ex_cldr_numbers, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}], "hexpm"},
   "ex_doc": {:hex, :ex_doc, "0.19.3", "3c7b0f02851f5fc13b040e8e925051452e41248f685e40250d7e40b07b9f8c10", [:mix], [{:earmark, "~> 1.2", [hex: :earmark, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.10", [hex: :makeup_elixir, repo: "hexpm", optional: false]}], "hexpm"},
+  "ex_json_schema": {:hex, :ex_json_schema, "0.6.1", "b57c0588385b8262b80f19d33d9b9b71fcd60d247691abf2635b57a03ec0ad44", [:mix], [], "hexpm"},
   "ex_machina": {:hex, :ex_machina, "2.3.0", "92a5ad0a8b10ea6314b876a99c8c9e3f25f4dde71a2a835845b136b9adaf199a", [:mix], [{:ecto, "~> 2.2 or ~> 3.0", [hex: :ecto, repo: "hexpm", optional: true]}, {:ecto_sql, "~> 3.0", [hex: :ecto_sql, repo: "hexpm", optional: true]}], "hexpm"},
   "ex_rlp": {:hex, :ex_rlp, "0.5.2", "7f4ce7bd55e543c054ce6d49629b01e9833c3462e3d547952be89865f39f2c58", [:mix], [], "hexpm"},
   "ex_utils": {:hex, :ex_utils, "0.1.7", "2c133e0bcdc49a858cf8dacf893308ebc05bc5fba501dc3d2935e65365ec0bf3", [:mix], [], "hexpm"},