diff --git a/.dialyzer-ignore b/.dialyzer-ignore
index a5d8c8f6c1..899009bca9 100644
--- a/.dialyzer-ignore
+++ b/.dialyzer-ignore
@@ -18,7 +18,7 @@ lib/block_scout_web/views/layout_view.ex:145: The call 'Elixir.Poison.Parser':'p
 lib/block_scout_web/views/layout_view.ex:237: The call 'Elixir.Poison.Parser':'parse!'
 lib/block_scout_web/controllers/api/rpc/transaction_controller.ex:21
 lib/block_scout_web/controllers/api/rpc/transaction_controller.ex:22
-lib/explorer/smart_contract/reader.ex:347
+lib/explorer/smart_contract/reader.ex:348
 lib/indexer/fetcher/token_total_supply_on_demand.ex:16
 lib/explorer/exchange_rates/source.ex:110
 lib/explorer/exchange_rates/source.ex:113
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1e450d4fc8..adddd59e46 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -39,6 +39,7 @@
 - [#3577](https://github.com/poanetwork/blockscout/pull/3577) - Eliminate GraphiQL page XSS attack
 
 ### Chore
+- [#3736](https://github.com/blockscout/blockscout/pull/3736) - Contract writer: Fix sending a transaction with tuple input type
 - [#3719](https://github.com/poanetwork/blockscout/pull/3719) - Rename ethprice API endpoint
 - [#3717](https://github.com/poanetwork/blockscout/pull/3717) - Update alpine-elixir-phoenix 1.11.3
 - [#3714](https://github.com/poanetwork/blockscout/pull/3714) - Application announcements management: whole explorer, staking dapp
diff --git a/apps/block_scout_web/assets/js/lib/smart_contract/common_helpers.js b/apps/block_scout_web/assets/js/lib/smart_contract/common_helpers.js
new file mode 100644
index 0000000000..57de5b7477
--- /dev/null
+++ b/apps/block_scout_web/assets/js/lib/smart_contract/common_helpers.js
@@ -0,0 +1,87 @@
+import $ from 'jquery'
+
+export function getContractABI ($form) {
+  const implementationAbi = $form.data('implementation-abi')
+  const parentAbi = $form.data('contract-abi')
+  const $parent = $('[data-smart-contract-functions]')
+  const contractType = $parent.data('type')
+  const contractAbi = contractType === 'proxy' ? implementationAbi : parentAbi
+  return contractAbi
+}
+
+export function getMethodInputs (contractAbi, functionName) {
+  const functionAbi = contractAbi.find(abi =>
+    abi.name === functionName
+  )
+  return functionAbi && functionAbi.inputs
+}
+
+export function prepareMethodArgs ($functionInputs, inputs) {
+  return $.map($functionInputs, (element, ind) => {
+    const inputValue = $(element).val()
+    const inputType = inputs[ind] && inputs[ind].type
+    let sanitizedInputValue
+    sanitizedInputValue = replaceSpaces(inputValue, inputType)
+    sanitizedInputValue = replaceDoubleQuotes(sanitizedInputValue, inputType)
+
+    if (isArrayInputType(inputType) || isTupleInputType(inputType)) {
+      if (sanitizedInputValue === '') {
+        return [[]]
+      } else {
+        if (sanitizedInputValue.startsWith('[') && sanitizedInputValue.endsWith(']')) {
+          sanitizedInputValue = sanitizedInputValue.substring(1, sanitizedInputValue.length - 1)
+        }
+        const inputValueElements = sanitizedInputValue.split(',')
+        const sanitizedInputValueElements = inputValueElements.map(elementValue => {
+          const elementInputType = inputType.split('[')[0]
+          return replaceDoubleQuotes(elementValue, elementInputType)
+        })
+        return [sanitizedInputValueElements]
+      }
+    } else { return sanitizedInputValue }
+  })
+}
+
+function isArrayInputType (inputType) {
+  return inputType && inputType.includes('[') && inputType.includes(']')
+}
+
+function isTupleInputType (inputType) {
+  return inputType.includes('tuple') && !isArrayInputType(inputType)
+}
+
+function isAddressInputType (inputType) {
+  return inputType.includes('address') && !isArrayInputType(inputType)
+}
+
+function isUintInputType (inputType) {
+  return inputType.includes('int') && !isArrayInputType(inputType)
+}
+
+function isStringInputType (inputType) {
+  return inputType.includes('string') && !isArrayInputType(inputType)
+}
+
+function isNonSpaceInputType (inputType) {
+  return isAddressInputType(inputType) || inputType.includes('int') || inputType.includes('bool')
+}
+
+function replaceSpaces (value, type) {
+  if (isNonSpaceInputType(type)) {
+    return value.replace(/\s/g, '')
+  } else {
+    return value
+  }
+}
+
+function replaceDoubleQuotes (value, type) {
+  if (isAddressInputType(type) || isUintInputType(type) || isStringInputType(type)) {
+    if (typeof value.replaceAll === 'function') {
+      return value.replaceAll('"', '')
+    } else {
+      return value.replace(/"/g, '')
+    }
+  } else {
+    return value
+  }
+}
diff --git a/apps/block_scout_web/assets/js/lib/smart_contract/functions.js b/apps/block_scout_web/assets/js/lib/smart_contract/functions.js
index 6d96023b49..55312c1429 100644
--- a/apps/block_scout_web/assets/js/lib/smart_contract/functions.js
+++ b/apps/block_scout_web/assets/js/lib/smart_contract/functions.js
@@ -1,7 +1,6 @@
 import $ from 'jquery'
-import { props } from 'eth-net-props'
-import { walletEnabled, connectToWallet, getCurrentAccount, shouldHideConnectButton } from './write.js'
-import { openErrorModal, openWarningModal, openSuccessModal, openModalWithMessage } from '../modals.js'
+import { getContractABI, getMethodInputs, prepareMethodArgs } from './common_helpers'
+import { walletEnabled, connectToWallet, shouldHideConnectButton, callMethod } from './write'
 import '../../pages/address'
 
 const loadFunctions = (element) => {
@@ -137,181 +136,6 @@ const readWriteFunction = (element) => {
   })
 }
 
-function callMethod (isWalletEnabled, $functionInputs, explorerChainId, $form, functionName, $element) {
-  if (!isWalletEnabled) {
-    const warningMsg = 'You haven\'t approved the reading of account list from your MetaMask or MetaMask/Nifty wallet is locked or is not installed.'
-    return openWarningModal('Unauthorized', warningMsg)
-  }
-  const contractAbi = getContractABI($form)
-  const inputs = getMethodInputs(contractAbi, functionName)
-
-  const $functionInputsExceptTxValue = $functionInputs.filter(':not([tx-value])')
-  const args = prepareMethodArgs($functionInputsExceptTxValue, inputs)
-
-  const txValue = getTxValue($functionInputs)
-  const contractAddress = $form.data('contract-address')
-
-  const { chainId: walletChainIdHex } = window.ethereum
-  compareChainIDs(explorerChainId, walletChainIdHex)
-    .then(currentAccount => {
-      if (functionName) {
-        const TargetContract = new window.web3.eth.Contract(contractAbi, contractAddress)
-        const sendParams = { from: currentAccount, value: txValue || 0 }
-        const methodToCall = TargetContract.methods[functionName](...args).send(sendParams)
-        methodToCall
-          .on('error', function (error) {
-            openErrorModal(`Error in sending transaction for method "${functionName}"`, formatError(error), false)
-          })
-          .on('transactionHash', function (txHash) {
-            onTransactionHash(txHash, $element, functionName)
-          })
-      } else {
-        const txParams = {
-          from: currentAccount,
-          to: contractAddress,
-          value: txValue || 0
-        }
-        window.ethereum.request({
-          method: 'eth_sendTransaction',
-          params: [txParams]
-        })
-          .then(function (txHash) {
-            onTransactionHash(txHash, $element, functionName)
-          })
-          .catch(function (error) {
-            openErrorModal('Error in sending transaction for fallback method', formatError(error), false)
-          })
-      }
-    })
-    .catch(error => {
-      openWarningModal('Unauthorized', formatError(error))
-    })
-}
-
-function getMethodInputs (contractAbi, functionName) {
-  const functionAbi = contractAbi.find(abi =>
-    abi.name === functionName
-  )
-  return functionAbi && functionAbi.inputs
-}
-
-function prepareMethodArgs ($functionInputs, inputs) {
-  return $.map($functionInputs, (element, ind) => {
-    const inputValue = $(element).val()
-    const inputType = inputs[ind] && inputs[ind].type
-    let sanitizedInputValue
-    sanitizedInputValue = replaceSpaces(inputValue, inputType)
-    sanitizedInputValue = replaceDoubleQuotes(sanitizedInputValue, inputType)
-    if (isArrayInputType(inputType)) {
-      if (sanitizedInputValue === '') {
-        return [[]]
-      } else {
-        if (sanitizedInputValue.startsWith('[') && sanitizedInputValue.endsWith(']')) {
-          sanitizedInputValue = sanitizedInputValue.substring(1, sanitizedInputValue.length - 1)
-        }
-        const inputValueElements = sanitizedInputValue.split(',')
-        const sanitizedInputValueElements = inputValueElements.map(elementValue => {
-          const elementInputType = inputType.split('[')[0]
-          return replaceDoubleQuotes(elementValue, elementInputType)
-        })
-        return [sanitizedInputValueElements]
-      }
-    } else { return sanitizedInputValue }
-  })
-}
-
-function isArrayInputType (inputType) {
-  return inputType && inputType.includes('[') && inputType.includes(']')
-}
-
-function isAddressInputType (inputType) {
-  return inputType.includes('address')
-}
-
-function isUintInputType (inputType) {
-  return inputType.includes('int') && !inputType.includes('[')
-}
-
-function isStringInputType (inputType) {
-  return inputType.includes('string') && !inputType.includes('[')
-}
-
-function isNonSpaceInputType (inputType) {
-  return isAddressInputType(inputType) || inputType.includes('int') || inputType.includes('bool')
-}
-
-function getTxValue ($functionInputs) {
-  const WEI_MULTIPLIER = 10 ** 18
-  const $txValue = $functionInputs.filter('[tx-value]:first')
-  const txValue = $txValue && $txValue.val() && parseFloat($txValue.val()) * WEI_MULTIPLIER
-  const txValueStr = txValue && txValue.toString(16)
-  return txValueStr
-}
-
-function getContractABI ($form) {
-  const implementationAbi = $form.data('implementation-abi')
-  const parentAbi = $form.data('contract-abi')
-  const $parent = $('[data-smart-contract-functions]')
-  const contractType = $parent.data('type')
-  const contractAbi = contractType === 'proxy' ? implementationAbi : parentAbi
-  return contractAbi
-}
-
-function compareChainIDs (explorerChainId, walletChainIdHex) {
-  if (explorerChainId !== parseInt(walletChainIdHex)) {
-    const networkDisplayNameFromWallet = props.getNetworkDisplayName(walletChainIdHex)
-    const networkDisplayName = props.getNetworkDisplayName(explorerChainId)
-    const errorMsg = `You connected to ${networkDisplayNameFromWallet} chain in the wallet, but the current instance of Blockscout is for ${networkDisplayName} chain`
-    return Promise.reject(new Error(errorMsg))
-  } else {
-    return getCurrentAccount()
-  }
-}
-
-function onTransactionHash (txHash, $element, functionName) {
-  openModalWithMessage($element.find('#pending-contract-write'), true, txHash)
-  const getTxReceipt = (txHash) => {
-    window.ethereum.request({
-      method: 'eth_getTransactionReceipt',
-      params: [txHash]
-    })
-      .then(txReceipt => {
-        if (txReceipt) {
-          const successMsg = `Successfully sent <a href="/tx/${txHash}">transaction</a> for method "${functionName}"`
-          openSuccessModal('Success', successMsg)
-          clearInterval(txReceiptPollingIntervalId)
-        }
-      })
-  }
-  const txReceiptPollingIntervalId = setInterval(() => { getTxReceipt(txHash) }, 5 * 1000)
-}
-
-function replaceSpaces (value, type) {
-  if (isNonSpaceInputType(type)) {
-    return value.replace(/\s/g, '')
-  } else {
-    return value
-  }
-}
-
-function replaceDoubleQuotes (value, type) {
-  if (isAddressInputType(type) || isUintInputType(type) || isStringInputType(type)) {
-    if (typeof value.replaceAll === 'function') {
-      return value.replaceAll('"', '')
-    } else {
-      return value.replace(/"/g, '')
-    }
-  } else {
-    return value
-  }
-}
-
-const formatError = (error) => {
-  let { message } = error
-  message = message && message.split('Error: ').length > 1 ? message.split('Error: ')[1] : message
-  return message
-}
-
 const container = $('[data-smart-contract-functions]')
 
 if (container.length) {
diff --git a/apps/block_scout_web/assets/js/lib/smart_contract/write.js b/apps/block_scout_web/assets/js/lib/smart_contract/write.js
index 73e50a6f2e..14ada95f25 100644
--- a/apps/block_scout_web/assets/js/lib/smart_contract/write.js
+++ b/apps/block_scout_web/assets/js/lib/smart_contract/write.js
@@ -1,4 +1,7 @@
 import Web3 from 'web3'
+import { props } from 'eth-net-props'
+import { openErrorModal, openWarningModal, openSuccessModal, openModalWithMessage } from '../modals'
+import { getContractABI, getMethodInputs, prepareMethodArgs } from './common_helpers'
 
 export const walletEnabled = () => {
   return new Promise((resolve) => {
@@ -80,3 +83,97 @@ export const shouldHideConnectButton = () => {
     }
   })
 }
+
+export function callMethod (isWalletEnabled, $functionInputs, explorerChainId, $form, functionName, $element) {
+  if (!isWalletEnabled) {
+    const warningMsg = 'You haven\'t approved the reading of account list from your MetaMask or MetaMask/Nifty wallet is locked or is not installed.'
+    return openWarningModal('Unauthorized', warningMsg)
+  }
+  const contractAbi = getContractABI($form)
+  const inputs = getMethodInputs(contractAbi, functionName)
+
+  const $functionInputsExceptTxValue = $functionInputs.filter(':not([tx-value])')
+  const args = prepareMethodArgs($functionInputsExceptTxValue, inputs)
+
+  const txValue = getTxValue($functionInputs)
+  const contractAddress = $form.data('contract-address')
+
+  const { chainId: walletChainIdHex } = window.ethereum
+  compareChainIDs(explorerChainId, walletChainIdHex)
+    .then(currentAccount => {
+      if (functionName) {
+        const TargetContract = new window.web3.eth.Contract(contractAbi, contractAddress)
+        const sendParams = { from: currentAccount, value: txValue || 0 }
+        const methodToCall = TargetContract.methods[functionName](...args).send(sendParams)
+        methodToCall
+          .on('error', function (error) {
+            openErrorModal(`Error in sending transaction for method "${functionName}"`, formatError(error), false)
+          })
+          .on('transactionHash', function (txHash) {
+            onTransactionHash(txHash, $element, functionName)
+          })
+      } else {
+        const txParams = {
+          from: currentAccount,
+          to: contractAddress,
+          value: txValue || 0
+        }
+        window.ethereum.request({
+          method: 'eth_sendTransaction',
+          params: [txParams]
+        })
+          .then(function (txHash) {
+            onTransactionHash(txHash, $element, functionName)
+          })
+          .catch(function (error) {
+            openErrorModal('Error in sending transaction for fallback method', formatError(error), false)
+          })
+      }
+    })
+    .catch(error => {
+      openWarningModal('Unauthorized', formatError(error))
+    })
+}
+
+function onTransactionHash (txHash, $element, functionName) {
+  openModalWithMessage($element.find('#pending-contract-write'), true, txHash)
+  const getTxReceipt = (txHash) => {
+    window.ethereum.request({
+      method: 'eth_getTransactionReceipt',
+      params: [txHash]
+    })
+      .then(txReceipt => {
+        if (txReceipt) {
+          const successMsg = `Successfully sent <a href="/tx/${txHash}">transaction</a> for method "${functionName}"`
+          openSuccessModal('Success', successMsg)
+          clearInterval(txReceiptPollingIntervalId)
+        }
+      })
+  }
+  const txReceiptPollingIntervalId = setInterval(() => { getTxReceipt(txHash) }, 5 * 1000)
+}
+
+const formatError = (error) => {
+  let { message } = error
+  message = message && message.split('Error: ').length > 1 ? message.split('Error: ')[1] : message
+  return message
+}
+
+function getTxValue ($functionInputs) {
+  const WEI_MULTIPLIER = 10 ** 18
+  const $txValue = $functionInputs.filter('[tx-value]:first')
+  const txValue = $txValue && $txValue.val() && parseFloat($txValue.val()) * WEI_MULTIPLIER
+  const txValueStr = txValue && txValue.toString(16)
+  return txValueStr
+}
+
+function compareChainIDs (explorerChainId, walletChainIdHex) {
+  if (explorerChainId !== parseInt(walletChainIdHex)) {
+    const networkDisplayNameFromWallet = props.getNetworkDisplayName(walletChainIdHex)
+    const networkDisplayName = props.getNetworkDisplayName(explorerChainId)
+    const errorMsg = `You connected to ${networkDisplayNameFromWallet} chain in the wallet, but the current instance of Blockscout is for ${networkDisplayName} chain`
+    return Promise.reject(new Error(errorMsg))
+  } else {
+    return getCurrentAccount()
+  }
+}
diff --git a/apps/block_scout_web/assets/webpack.config.js b/apps/block_scout_web/assets/webpack.config.js
index 0f52fa95bb..d0d8414d43 100644
--- a/apps/block_scout_web/assets/webpack.config.js
+++ b/apps/block_scout_web/assets/webpack.config.js
@@ -90,7 +90,7 @@ const appJs =
       'admin-tasks': './js/pages/admin/tasks.js',
       'read-token-contract': './js/pages/read_token_contract.js',
       'smart-contract-helpers': './js/lib/smart_contract/index.js',
-      'write_contract': './js/pages/write_contract.js',
+      'write-contract': './js/pages/write_contract.js',
       'token-transfers-toggle': './js/lib/token_transfers_toggle.js',
       'try-api': './js/lib/try_api.js',
       'try-eth-api': './js/lib/try_eth_api.js',
diff --git a/apps/block_scout_web/lib/block_scout_web/templates/address_write_contract/index.html.eex b/apps/block_scout_web/lib/block_scout_web/templates/address_write_contract/index.html.eex
index 34c5dcffcf..0c7874b6e9 100644
--- a/apps/block_scout_web/lib/block_scout_web/templates/address_write_contract/index.html.eex
+++ b/apps/block_scout_web/lib/block_scout_web/templates/address_write_contract/index.html.eex
@@ -16,5 +16,5 @@
     </div>
   </div>
   <script defer data-cfasync="false" src="<%= static_path(@conn, "/js/smart-contract-helpers.js") %>"></script>
-  <script defer data-cfasync="false" src="<%= static_path(@conn, "/js/write_contract.js") %>"></script>
+  <script defer data-cfasync="false" src="<%= static_path(@conn, "/js/write-contract.js") %>"></script>
 </section>
diff --git a/apps/block_scout_web/lib/block_scout_web/templates/address_write_proxy/index.html.eex b/apps/block_scout_web/lib/block_scout_web/templates/address_write_proxy/index.html.eex
index 34c5dcffcf..0c7874b6e9 100644
--- a/apps/block_scout_web/lib/block_scout_web/templates/address_write_proxy/index.html.eex
+++ b/apps/block_scout_web/lib/block_scout_web/templates/address_write_proxy/index.html.eex
@@ -16,5 +16,5 @@
     </div>
   </div>
   <script defer data-cfasync="false" src="<%= static_path(@conn, "/js/smart-contract-helpers.js") %>"></script>
-  <script defer data-cfasync="false" src="<%= static_path(@conn, "/js/write_contract.js") %>"></script>
+  <script defer data-cfasync="false" src="<%= static_path(@conn, "/js/write-contract.js") %>"></script>
 </section>
diff --git a/apps/block_scout_web/lib/block_scout_web/templates/smart_contract/_connect_container.html.eex b/apps/block_scout_web/lib/block_scout_web/templates/smart_contract/_connect_container.html.eex
new file mode 100644
index 0000000000..d2ad941524
--- /dev/null
+++ b/apps/block_scout_web/lib/block_scout_web/templates/smart_contract/_connect_container.html.eex
@@ -0,0 +1,13 @@
+<div connect-to class="connect-container">
+    <span style="margin-top: -2px;" class="mr-2">
+      <%= render BlockScoutWeb.IconsView, "_inactive_icon.html" %>
+    </span>
+     <h2 style="margin-top: -2px;">Disconnected</h2>
+    <button connect-metamask class="button btn-line ml-4">Connect to Metamask</button>
+</div>
+<div connected-to class="connect-container hidden">
+    <span style="margin-top: -2px;" class="mr-2">
+      <%= render BlockScoutWeb.IconsView, "_active_icon.html" %>
+    </span>
+    <h2 style="margin-top: -2px;">Connected to</h2><h3 connected-to-address class="ml-2"></h3>
+</div>
\ No newline at end of file
diff --git a/apps/block_scout_web/lib/block_scout_web/templates/smart_contract/_functions.html.eex b/apps/block_scout_web/lib/block_scout_web/templates/smart_contract/_functions.html.eex
index 75d023ca91..79bd7cbe44 100644
--- a/apps/block_scout_web/lib/block_scout_web/templates/smart_contract/_functions.html.eex
+++ b/apps/block_scout_web/lib/block_scout_web/templates/smart_contract/_functions.html.eex
@@ -12,19 +12,7 @@ to: address_contract_path(@conn, :index, metadata_for_verification.address_hash)
   <% end %>
 <% end %>
 <%= if @action== "write" do %>
-  <div connect-to class="connect-container">
-    <span style="margin-top: -2px;" class="mr-2">
-      <%= render BlockScoutWeb.IconsView, "_inactive_icon.html" %>
-    </span>
-     <h2 style="margin-top: -2px;">Disconnected</h2>
-    <button connect-metamask class="button btn-line ml-4">Connect to Metamask</button>
-  </div>
-  <div connected-to class="connect-container hidden">
-    <span style="margin-top: -2px;" class="mr-2">
-      <%= render BlockScoutWeb.IconsView, "_active_icon.html" %>
-    </span>
-    <h2 style="margin-top: -2px;">Connected to</h2><h3 connected-to-address class="ml-2"></h3>
-  </div>
+  <%= render BlockScoutWeb.SmartContractView, "_connect_container.html" %>
 <% end %>
 <%= if @contract_type == "proxy" do %>
 <div class="implementation-container">
@@ -52,7 +40,7 @@ to: address_contract_path(@conn, :index, metadata_for_verification.address_hash)
           end
         %>
         <%= render BlockScoutWeb.SmartContractView, "_pending_contract_write.html" %>
-        <form class="form-inline" data-function-form data-action="<%= if writable?(function), do: :write, else: :read %>" data-type="<%= @contract_type %>" data-url="<%= smart_contract_path(@conn, :show, @address.hash) %>" data-contract-address="<%= @address.hash %>" data-contract-abi="<%= @contract_abi %>" data-implementation-abi="<%= @implementation_abi  %>" data-chain-id="<%= Explorer.Chain.Cache.NetVersion.get_version() %>">
+        <form class="form-inline" data-function-form data-action="<%= if writable?(function), do: :write, else: :read %>" data-type="<%= @contract_type %>" data-url="<%= smart_contract_path(@conn, :show, Address.checksum(@address.hash)) %>" data-contract-address="<%= @address.hash %>" data-contract-abi="<%= @contract_abi %>" data-implementation-abi="<%= @implementation_abi  %>" data-chain-id="<%= Explorer.Chain.Cache.NetVersion.get_version() %>">
           <input type="hidden" name="function_name" value='<%= function["name"] %>' />
           <input type="hidden" name="method_id" value='<%= function["method_id"] %>' />
 
@@ -80,7 +68,7 @@ to: address_contract_path(@conn, :index, metadata_for_verification.address_hash)
             <% end %>
           <% end %>
 
-          <%= if payable?(function) do %>
+          <%= if Helper.payable?(function) do %>
             <div class="form-group pr-3">
               <input type="text" name="function_input" tx-value class="form-control form-control-sm address-input-sm mt-2" placeholder='value(<%= gettext("ETH")%>)'  />
             </div>
diff --git a/apps/block_scout_web/lib/block_scout_web/views/address_read_contract_view.ex b/apps/block_scout_web/lib/block_scout_web/views/address_read_contract_view.ex
index 1930c4b8d7..559af200bc 100644
--- a/apps/block_scout_web/lib/block_scout_web/views/address_read_contract_view.ex
+++ b/apps/block_scout_web/lib/block_scout_web/views/address_read_contract_view.ex
@@ -1,13 +1,3 @@
 defmodule BlockScoutWeb.AddressReadContractView do
   use BlockScoutWeb, :view
-
-  def queryable?(inputs) when not is_nil(inputs), do: Enum.any?(inputs)
-
-  def queryable?(inputs) when is_nil(inputs), do: false
-
-  def outputs?(outputs) when not is_nil(outputs), do: Enum.any?(outputs)
-
-  def outputs?(outputs) when is_nil(outputs), do: false
-
-  def address?(type), do: type == "address"
 end
diff --git a/apps/block_scout_web/lib/block_scout_web/views/address_read_proxy_view.ex b/apps/block_scout_web/lib/block_scout_web/views/address_read_proxy_view.ex
index 178e900fe0..e51247fdd8 100644
--- a/apps/block_scout_web/lib/block_scout_web/views/address_read_proxy_view.ex
+++ b/apps/block_scout_web/lib/block_scout_web/views/address_read_proxy_view.ex
@@ -1,13 +1,3 @@
 defmodule BlockScoutWeb.AddressReadProxyView do
   use BlockScoutWeb, :view
-
-  def queryable?(inputs) when not is_nil(inputs), do: Enum.any?(inputs)
-
-  def queryable?(inputs) when is_nil(inputs), do: false
-
-  def outputs?(outputs) when not is_nil(outputs), do: Enum.any?(outputs)
-
-  def outputs?(outputs) when is_nil(outputs), do: false
-
-  def address?(type), do: type == "address"
 end
diff --git a/apps/block_scout_web/lib/block_scout_web/views/address_view.ex b/apps/block_scout_web/lib/block_scout_web/views/address_view.ex
index db37658d12..f0dc1ed29d 100644
--- a/apps/block_scout_web/lib/block_scout_web/views/address_view.ex
+++ b/apps/block_scout_web/lib/block_scout_web/views/address_view.ex
@@ -8,7 +8,7 @@ defmodule BlockScoutWeb.AddressView do
   alias Explorer.Chain.{Address, Hash, InternalTransaction, SmartContract, Token, TokenTransfer, Transaction, Wei}
   alias Explorer.Chain.Block.Reward
   alias Explorer.ExchangeRates.Token, as: TokenExchangeRate
-  alias Explorer.SmartContract.Writer
+  alias Explorer.SmartContract.{Helper, Writer}
 
   @dialyzer :no_match
 
@@ -229,7 +229,7 @@ defmodule BlockScoutWeb.AddressView do
   def smart_contract_verified?(%Address{smart_contract: nil}), do: false
 
   def smart_contract_with_read_only_functions?(%Address{smart_contract: %SmartContract{}} = address) do
-    Enum.any?(address.smart_contract.abi, &(&1["constant"] || &1["stateMutability"] == "view"))
+    Enum.any?(address.smart_contract.abi, &Helper.queriable_method?(&1))
   end
 
   def smart_contract_with_read_only_functions?(%Address{smart_contract: nil}), do: false
diff --git a/apps/block_scout_web/lib/block_scout_web/views/address_write_contract_view.ex b/apps/block_scout_web/lib/block_scout_web/views/address_write_contract_view.ex
index 37b82f72cc..c21e1f51c9 100644
--- a/apps/block_scout_web/lib/block_scout_web/views/address_write_contract_view.ex
+++ b/apps/block_scout_web/lib/block_scout_web/views/address_write_contract_view.ex
@@ -1,13 +1,3 @@
 defmodule BlockScoutWeb.AddressWriteContractView do
   use BlockScoutWeb, :view
-
-  def queryable?(inputs) when not is_nil(inputs), do: Enum.any?(inputs)
-
-  def queryable?(inputs) when is_nil(inputs), do: false
-
-  def outputs?(outputs) when not is_nil(outputs), do: Enum.any?(outputs)
-
-  def outputs?(outputs) when is_nil(outputs), do: false
-
-  def address?(type), do: type == "address"
 end
diff --git a/apps/block_scout_web/lib/block_scout_web/views/address_write_proxy_view.ex b/apps/block_scout_web/lib/block_scout_web/views/address_write_proxy_view.ex
index 9825477c3d..17634e9fb1 100644
--- a/apps/block_scout_web/lib/block_scout_web/views/address_write_proxy_view.ex
+++ b/apps/block_scout_web/lib/block_scout_web/views/address_write_proxy_view.ex
@@ -1,13 +1,3 @@
 defmodule BlockScoutWeb.AddressWriteProxyView do
   use BlockScoutWeb, :view
-
-  def queryable?(inputs) when not is_nil(inputs), do: Enum.any?(inputs)
-
-  def queryable?(inputs) when is_nil(inputs), do: false
-
-  def outputs?(outputs) when not is_nil(outputs), do: Enum.any?(outputs)
-
-  def outputs?(outputs) when is_nil(outputs), do: false
-
-  def address?(type), do: type == "address"
 end
diff --git a/apps/block_scout_web/lib/block_scout_web/views/smart_contract_view.ex b/apps/block_scout_web/lib/block_scout_web/views/smart_contract_view.ex
index 98d4438dc1..d9ab656ce9 100644
--- a/apps/block_scout_web/lib/block_scout_web/views/smart_contract_view.ex
+++ b/apps/block_scout_web/lib/block_scout_web/views/smart_contract_view.ex
@@ -2,7 +2,9 @@ defmodule BlockScoutWeb.SmartContractView do
   use BlockScoutWeb, :view
 
   alias Explorer.Chain
-  alias Explorer.Chain.Hash.Address
+  alias Explorer.Chain.Address
+  alias Explorer.Chain.Hash.Address, as: HashAddress
+  alias Explorer.SmartContract.Helper
 
   def queryable?(inputs) when not is_nil(inputs), do: Enum.any?(inputs)
 
@@ -10,8 +12,8 @@ defmodule BlockScoutWeb.SmartContractView do
 
   def writable?(function) when not is_nil(function),
     do:
-      !constructor?(function) && !event?(function) &&
-        (payable?(function) || nonpayable?(function))
+      !Helper.constructor?(function) && !Helper.event?(function) &&
+        (Helper.payable?(function) || Helper.nonpayable?(function))
 
   def writable?(function) when is_nil(function), do: false
 
@@ -19,21 +21,6 @@ defmodule BlockScoutWeb.SmartContractView do
 
   def outputs?(outputs) when is_nil(outputs), do: false
 
-  defp event?(function), do: function["type"] == "event"
-
-  defp constructor?(function), do: function["type"] == "constructor"
-
-  def payable?(function), do: function["stateMutability"] == "payable" || function["payable"]
-
-  def nonpayable?(function) do
-    if function["type"] do
-      function["stateMutability"] == "nonpayable" ||
-        (!function["payable"] && !function["constant"] && !function["stateMutability"])
-    else
-      false
-    end
-  end
-
   def address?(type), do: type in ["address", "address payable"]
   def int?(type), do: String.contains?(type, "int") && !String.contains?(type, "[")
 
@@ -94,7 +81,7 @@ defmodule BlockScoutWeb.SmartContractView do
   end
 
   def values_with_type(value, type, _components) when type in [:address, "address", "address payable"] do
-    case Address.cast(value) do
+    case HashAddress.cast(value) do
       {:ok, address} ->
         render_type_value("address", to_string(address))
 
@@ -167,7 +154,7 @@ defmodule BlockScoutWeb.SmartContractView do
   end
 
   def values_only(value, type, _components) when type in [:address, "address", "address payable"] do
-    {:ok, address} = Address.cast(value)
+    {:ok, address} = HashAddress.cast(value)
     to_string(address)
   end
 
diff --git a/apps/block_scout_web/lib/block_scout_web/views/tokens/instance/overview_view.ex b/apps/block_scout_web/lib/block_scout_web/views/tokens/instance/overview_view.ex
index 0b410254ed..d15da258bd 100644
--- a/apps/block_scout_web/lib/block_scout_web/views/tokens/instance/overview_view.ex
+++ b/apps/block_scout_web/lib/block_scout_web/views/tokens/instance/overview_view.ex
@@ -3,6 +3,7 @@ defmodule BlockScoutWeb.Tokens.Instance.OverviewView do
 
   alias BlockScoutWeb.CurrencyHelpers
   alias Explorer.Chain.{Address, SmartContract, Token}
+  alias Explorer.SmartContract.Helper
 
   import BlockScoutWeb.APIDocsView, only: [blockscout_url: 1, blockscout_url: 2]
 
@@ -68,7 +69,7 @@ defmodule BlockScoutWeb.Tokens.Instance.OverviewView do
   def smart_contract_with_read_only_functions?(
         %Token{contract_address: %Address{smart_contract: %SmartContract{}}} = token
       ) do
-    Enum.any?(token.contract_address.smart_contract.abi, &(&1["constant"] || &1["stateMutability"] == "view"))
+    Enum.any?(token.contract_address.smart_contract.abi, &Helper.queriable_method?(&1))
   end
 
   def smart_contract_with_read_only_functions?(%Token{contract_address: %Address{smart_contract: nil}}), do: false
diff --git a/apps/block_scout_web/lib/block_scout_web/views/tokens/overview_view.ex b/apps/block_scout_web/lib/block_scout_web/views/tokens/overview_view.ex
index c5dccab223..f18b68ee74 100644
--- a/apps/block_scout_web/lib/block_scout_web/views/tokens/overview_view.ex
+++ b/apps/block_scout_web/lib/block_scout_web/views/tokens/overview_view.ex
@@ -3,6 +3,7 @@ defmodule BlockScoutWeb.Tokens.OverviewView do
 
   alias Explorer.{Chain, CustomContractsHelpers}
   alias Explorer.Chain.{Address, SmartContract, Token}
+  alias Explorer.SmartContract.Helper
 
   alias BlockScoutWeb.{AccessHelpers, CurrencyHelpers, LayoutView}
 
@@ -48,7 +49,7 @@ defmodule BlockScoutWeb.Tokens.OverviewView do
   def smart_contract_with_read_only_functions?(
         %Token{contract_address: %Address{smart_contract: %SmartContract{}}} = token
       ) do
-    Enum.any?(token.contract_address.smart_contract.abi, &(&1["constant"] || &1["stateMutability"] == "view"))
+    Enum.any?(token.contract_address.smart_contract.abi, &Helper.queriable_method?(&1))
   end
 
   def smart_contract_with_read_only_functions?(%Token{contract_address: %Address{smart_contract: nil}}), do: false
diff --git a/apps/block_scout_web/priv/gettext/default.pot b/apps/block_scout_web/priv/gettext/default.pot
index 14fd7d16a7..fad4e3e0bb 100644
--- a/apps/block_scout_web/priv/gettext/default.pot
+++ b/apps/block_scout_web/priv/gettext/default.pot
@@ -555,8 +555,8 @@ msgid "ERC-721 "
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:85
-#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:120
+#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:73
+#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:108
 msgid "ETH"
 msgstr ""
 
@@ -868,7 +868,7 @@ msgstr ""
 #, elixir-format
 #: lib/block_scout_web/templates/tokens/holder/index.html.eex:15
 #: lib/block_scout_web/templates/tokens/overview/_tabs.html.eex:9
-#: lib/block_scout_web/views/tokens/overview_view.ex:41
+#: lib/block_scout_web/views/tokens/overview_view.ex:42
 msgid "Token Holders"
 msgstr ""
 
@@ -894,8 +894,8 @@ msgstr ""
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:4
 #: lib/block_scout_web/templates/transaction_token_transfer/index.html.eex:7
 #: lib/block_scout_web/views/address_view.ex:346
-#: lib/block_scout_web/views/tokens/instance/overview_view.ex:124
-#: lib/block_scout_web/views/tokens/overview_view.ex:40
+#: lib/block_scout_web/views/tokens/instance/overview_view.ex:125
+#: lib/block_scout_web/views/tokens/overview_view.ex:41
 #: lib/block_scout_web/views/transaction_view.ex:405
 msgid "Token Transfers"
 msgstr ""
@@ -944,7 +944,7 @@ msgstr ""
 #, elixir-format
 #: lib/block_scout_web/templates/tokens/inventory/index.html.eex:15
 #: lib/block_scout_web/templates/tokens/overview/_tabs.html.eex:17
-#: lib/block_scout_web/views/tokens/overview_view.ex:43
+#: lib/block_scout_web/views/tokens/overview_view.ex:44
 msgid "Inventory"
 msgstr ""
 
@@ -1187,7 +1187,7 @@ msgid "QR Code"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:89
+#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:77
 msgid "Query"
 msgstr ""
 
@@ -1640,7 +1640,7 @@ msgid "View transaction %{transaction} on %{subnetwork}"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:119
+#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:107
 msgid "WEI"
 msgstr ""
 
@@ -1775,7 +1775,7 @@ msgstr ""
 #, elixir-format
 #: lib/block_scout_web/templates/tokens/instance/metadata/index.html.eex:18
 #: lib/block_scout_web/templates/tokens/instance/overview/_tabs.html.eex:10
-#: lib/block_scout_web/views/tokens/instance/overview_view.ex:125
+#: lib/block_scout_web/views/tokens/instance/overview_view.ex:126
 msgid "Metadata"
 msgstr ""
 
@@ -1852,7 +1852,7 @@ msgstr ""
 #: lib/block_scout_web/templates/address/_tabs.html.eex:81
 #: lib/block_scout_web/templates/tokens/overview/_tabs.html.eex:25
 #: lib/block_scout_web/views/address_view.ex:349
-#: lib/block_scout_web/views/tokens/overview_view.ex:42
+#: lib/block_scout_web/views/tokens/overview_view.ex:43
 msgid "Read Contract"
 msgstr ""
 
@@ -1931,7 +1931,7 @@ msgid "Waiting for transaction's confirmation..."
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:89
+#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:77
 msgid "Write"
 msgstr ""
 
diff --git a/apps/block_scout_web/priv/gettext/en/LC_MESSAGES/default.po b/apps/block_scout_web/priv/gettext/en/LC_MESSAGES/default.po
index ad8a22f21b..fad4e3e0bb 100644
--- a/apps/block_scout_web/priv/gettext/en/LC_MESSAGES/default.po
+++ b/apps/block_scout_web/priv/gettext/en/LC_MESSAGES/default.po
@@ -555,8 +555,8 @@ msgid "ERC-721 "
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:85
-#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:120
+#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:73
+#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:108
 msgid "ETH"
 msgstr ""
 
@@ -868,7 +868,7 @@ msgstr ""
 #, elixir-format
 #: lib/block_scout_web/templates/tokens/holder/index.html.eex:15
 #: lib/block_scout_web/templates/tokens/overview/_tabs.html.eex:9
-#: lib/block_scout_web/views/tokens/overview_view.ex:41
+#: lib/block_scout_web/views/tokens/overview_view.ex:42
 msgid "Token Holders"
 msgstr ""
 
@@ -894,8 +894,8 @@ msgstr ""
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:4
 #: lib/block_scout_web/templates/transaction_token_transfer/index.html.eex:7
 #: lib/block_scout_web/views/address_view.ex:346
-#: lib/block_scout_web/views/tokens/instance/overview_view.ex:124
-#: lib/block_scout_web/views/tokens/overview_view.ex:40
+#: lib/block_scout_web/views/tokens/instance/overview_view.ex:125
+#: lib/block_scout_web/views/tokens/overview_view.ex:41
 #: lib/block_scout_web/views/transaction_view.ex:405
 msgid "Token Transfers"
 msgstr ""
@@ -944,7 +944,7 @@ msgstr ""
 #, elixir-format
 #: lib/block_scout_web/templates/tokens/inventory/index.html.eex:15
 #: lib/block_scout_web/templates/tokens/overview/_tabs.html.eex:17
-#: lib/block_scout_web/views/tokens/overview_view.ex:43
+#: lib/block_scout_web/views/tokens/overview_view.ex:44
 msgid "Inventory"
 msgstr ""
 
@@ -1187,7 +1187,7 @@ msgid "QR Code"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:89
+#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:77
 msgid "Query"
 msgstr ""
 
@@ -1640,7 +1640,7 @@ msgid "View transaction %{transaction} on %{subnetwork}"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:119
+#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:107
 msgid "WEI"
 msgstr ""
 
@@ -1775,7 +1775,7 @@ msgstr ""
 #, elixir-format
 #: lib/block_scout_web/templates/tokens/instance/metadata/index.html.eex:18
 #: lib/block_scout_web/templates/tokens/instance/overview/_tabs.html.eex:10
-#: lib/block_scout_web/views/tokens/instance/overview_view.ex:125
+#: lib/block_scout_web/views/tokens/instance/overview_view.ex:126
 msgid "Metadata"
 msgstr ""
 
@@ -1852,7 +1852,7 @@ msgstr ""
 #: lib/block_scout_web/templates/address/_tabs.html.eex:81
 #: lib/block_scout_web/templates/tokens/overview/_tabs.html.eex:25
 #: lib/block_scout_web/views/address_view.ex:349
-#: lib/block_scout_web/views/tokens/overview_view.ex:42
+#: lib/block_scout_web/views/tokens/overview_view.ex:43
 msgid "Read Contract"
 msgstr ""
 
@@ -1931,7 +1931,7 @@ msgid "Waiting for transaction's confirmation..."
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:89
+#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:77
 msgid "Write"
 msgstr ""
 
@@ -2702,11 +2702,6 @@ msgstr ""
 msgid "Swap STAKE on Honeyswap"
 msgstr ""
 
-#, elixir-format
-#: lib/block_scout_web/templates/stakes/_stakes_top.html.eex:34
-msgid "Bridge to Ethereum"
-msgstr ""
-
 #, elixir-format
 #: lib/block_scout_web/templates/stakes/_stakes_top.html.eex:52
 msgid "Trade STAKE on BitMax"
diff --git a/apps/block_scout_web/test/block_scout_web/views/address_read_contract_view_test.exs b/apps/block_scout_web/test/block_scout_web/views/address_read_contract_view_test.exs
deleted file mode 100644
index 1f98e26e5a..0000000000
--- a/apps/block_scout_web/test/block_scout_web/views/address_read_contract_view_test.exs
+++ /dev/null
@@ -1,19 +0,0 @@
-defmodule BlockScoutWeb.AddressReadContractViewTest do
-  use BlockScoutWeb.ConnCase, async: true
-
-  alias BlockScoutWeb.AddressReadContractView
-
-  describe "queryable?/1" do
-    test "returns true if list of inputs is not empty" do
-      assert AddressReadContractView.queryable?([%{"name" => "argument_name", "type" => "uint256"}]) == true
-      assert AddressReadContractView.queryable?([]) == false
-    end
-  end
-
-  describe "address?/1" do
-    test "returns true if type equals `address`" do
-      assert AddressReadContractView.address?("address") == true
-      assert AddressReadContractView.address?("uint256") == false
-    end
-  end
-end
diff --git a/apps/block_scout_web/test/block_scout_web/views/address_read_proxy_view_test.exs b/apps/block_scout_web/test/block_scout_web/views/address_read_proxy_view_test.exs
deleted file mode 100644
index cf1b6fd8e9..0000000000
--- a/apps/block_scout_web/test/block_scout_web/views/address_read_proxy_view_test.exs
+++ /dev/null
@@ -1,19 +0,0 @@
-defmodule BlockScoutWeb.AddressReadProxyViewTest do
-  use BlockScoutWeb.ConnCase, async: true
-
-  alias BlockScoutWeb.AddressReadProxyView
-
-  describe "queryable?/1" do
-    test "returns true if list of inputs is not empty" do
-      assert AddressReadProxyView.queryable?([%{"name" => "argument_name", "type" => "uint256"}]) == true
-      assert AddressReadProxyView.queryable?([]) == false
-    end
-  end
-
-  describe "address?/1" do
-    test "returns true if type equals `address`" do
-      assert AddressReadProxyView.address?("address") == true
-      assert AddressReadProxyView.address?("uint256") == false
-    end
-  end
-end
diff --git a/apps/block_scout_web/test/block_scout_web/views/address_write_contract_view_test.exs b/apps/block_scout_web/test/block_scout_web/views/address_write_contract_view_test.exs
deleted file mode 100644
index 55360f1229..0000000000
--- a/apps/block_scout_web/test/block_scout_web/views/address_write_contract_view_test.exs
+++ /dev/null
@@ -1,19 +0,0 @@
-defmodule BlockScoutWeb.AddressWriteContractViewTest do
-  use BlockScoutWeb.ConnCase, async: true
-
-  alias BlockScoutWeb.AddressWriteContractView
-
-  describe "queryable?/1" do
-    test "returns true if list of inputs is not empty" do
-      assert AddressWriteContractView.queryable?([%{"name" => "argument_name", "type" => "uint256"}]) == true
-      assert AddressWriteContractView.queryable?([]) == false
-    end
-  end
-
-  describe "address?/1" do
-    test "returns true if type equals `address`" do
-      assert AddressWriteContractView.address?("address") == true
-      assert AddressWriteContractView.address?("uint256") == false
-    end
-  end
-end
diff --git a/apps/block_scout_web/test/block_scout_web/views/address_write_proxy_view_test copy.exs b/apps/block_scout_web/test/block_scout_web/views/address_write_proxy_view_test copy.exs
deleted file mode 100644
index e3db0d7003..0000000000
--- a/apps/block_scout_web/test/block_scout_web/views/address_write_proxy_view_test copy.exs	
+++ /dev/null
@@ -1,19 +0,0 @@
-defmodule BlockScoutWeb.AddressWriteProxyViewTest do
-  use BlockScoutWeb.ConnCase, async: true
-
-  alias BlockScoutWeb.AddressWriteProxyView
-
-  describe "queryable?/1" do
-    test "returns true if list of inputs is not empty" do
-      assert AddressWriteProxyView.queryable?([%{"name" => "argument_name", "type" => "uint256"}]) == true
-      assert AddressWriteProxyView.queryable?([]) == false
-    end
-  end
-
-  describe "address?/1" do
-    test "returns true if type equals `address`" do
-      assert AddressWriteProxyView.address?("address") == true
-      assert AddressWriteProxyView.address?("uint256") == false
-    end
-  end
-end
diff --git a/apps/block_scout_web/test/block_scout_web/views/tokens/smart_contract_view_test.exs b/apps/block_scout_web/test/block_scout_web/views/tokens/smart_contract_view_test.exs
index 27b9ab00ba..7e43ce4e10 100644
--- a/apps/block_scout_web/test/block_scout_web/views/tokens/smart_contract_view_test.exs
+++ b/apps/block_scout_web/test/block_scout_web/views/tokens/smart_contract_view_test.exs
@@ -15,6 +15,11 @@ defmodule BlockScoutWeb.SmartContractViewTest do
 
       refute SmartContractView.queryable?(inputs)
     end
+
+    test "returns true if list of inputs is not empty" do
+      assert SmartContractView.queryable?([%{"name" => "argument_name", "type" => "uint256"}]) == true
+      assert SmartContractView.queryable?([]) == false
+    end
   end
 
   describe "writable?" do
@@ -73,128 +78,12 @@ defmodule BlockScoutWeb.SmartContractViewTest do
     end
   end
 
-  describe "payable?" do
-    test "returns true when there is payable function" do
-      function = %{
-        "type" => "function",
-        "stateMutability" => "payable",
-        "payable" => true,
-        "outputs" => [],
-        "name" => "upgradeToAndCall",
-        "inputs" => [
-          %{"type" => "uint256", "name" => "version"},
-          %{"type" => "address", "name" => "implementation"},
-          %{"type" => "bytes", "name" => "data"}
-        ],
-        "constant" => false
-      }
-
-      assert SmartContractView.payable?(function)
-    end
-
-    test "returns true when there is old-style payable function" do
-      function = %{
-        "type" => "function",
-        "payable" => true,
-        "outputs" => [],
-        "name" => "upgradeToAndCall",
-        "inputs" => [
-          %{"type" => "uint256", "name" => "version"},
-          %{"type" => "address", "name" => "implementation"},
-          %{"type" => "bytes", "name" => "data"}
-        ],
-        "constant" => false
-      }
-
-      assert SmartContractView.payable?(function)
-    end
-
-    test "returns false when it is nonpayable function" do
-      function = %{
-        "type" => "function",
-        "stateMutability" => "nonpayable",
-        "payable" => false,
-        "outputs" => [],
-        "name" => "transferProxyOwnership",
-        "inputs" => [%{"type" => "address", "name" => "newOwner"}],
-        "constant" => false
-      }
-
-      refute SmartContractView.payable?(function)
-    end
-
-    test "returns false when there is no function" do
-      function = %{}
-
-      refute SmartContractView.payable?(function)
-    end
-
-    test "returns false when function is nil" do
-      function = nil
-
-      refute SmartContractView.payable?(function)
-    end
-  end
-
-  describe "nonpayable?" do
-    test "returns true when there is nonpayable function" do
-      function = %{
-        "type" => "function",
-        "stateMutability" => "nonpayable",
-        "payable" => false,
-        "outputs" => [],
-        "name" => "transferProxyOwnership",
-        "inputs" => [%{"type" => "address", "name" => "newOwner"}],
-        "constant" => false
-      }
-
-      assert SmartContractView.nonpayable?(function)
-    end
-
-    test "returns true when there is old-style nonpayable function" do
-      function = %{
-        "type" => "function",
-        "outputs" => [],
-        "name" => "test",
-        "inputs" => [%{"type" => "address", "name" => "newOwner"}],
-        "constant" => false
-      }
-
-      assert SmartContractView.nonpayable?(function)
-    end
-
-    test "returns false when it is payable function" do
-      function = %{
-        "type" => "function",
-        "stateMutability" => "payable",
-        "payable" => true,
-        "outputs" => [],
-        "name" => "upgradeToAndCall",
-        "inputs" => [
-          %{"type" => "uint256", "name" => "version"},
-          %{"type" => "address", "name" => "implementation"},
-          %{"type" => "bytes", "name" => "data"}
-        ],
-        "constant" => false
-      }
-
-      refute SmartContractView.nonpayable?(function)
-    end
-
-    test "returns true when there is no function" do
-      function = %{}
-
-      refute SmartContractView.nonpayable?(function)
-    end
-
-    test "returns false when function is nil" do
-      function = nil
-
-      refute SmartContractView.nonpayable?(function)
+  describe "address?" do
+    test "returns true if type equals `address`" do
+      assert SmartContractView.address?("address") == true
+      assert SmartContractView.address?("uint256") == false
     end
-  end
 
-  describe "address?" do
     test "returns true when the type is equal to the string 'address'" do
       type = "address"
 
diff --git a/apps/explorer/lib/explorer/smart_contract/helper.ex b/apps/explorer/lib/explorer/smart_contract/helper.ex
new file mode 100644
index 0000000000..083258ac60
--- /dev/null
+++ b/apps/explorer/lib/explorer/smart_contract/helper.ex
@@ -0,0 +1,24 @@
+defmodule Explorer.SmartContract.Helper do
+  @moduledoc """
+  SmartContract helper functions
+  """
+
+  def queriable_method?(method) do
+    method["constant"] || method["stateMutability"] == "view"
+  end
+
+  def constructor?(function), do: function["type"] == "constructor"
+
+  def event?(function), do: function["type"] == "event"
+
+  def payable?(function), do: function["stateMutability"] == "payable" || function["payable"]
+
+  def nonpayable?(function) do
+    if function["type"] do
+      function["stateMutability"] == "nonpayable" ||
+        (!function["payable"] && !function["constant"] && !function["stateMutability"])
+    else
+      false
+    end
+  end
+end
diff --git a/apps/explorer/lib/explorer/smart_contract/reader.ex b/apps/explorer/lib/explorer/smart_contract/reader.ex
index e51c35e9b5..1cfff9183f 100644
--- a/apps/explorer/lib/explorer/smart_contract/reader.ex
+++ b/apps/explorer/lib/explorer/smart_contract/reader.ex
@@ -9,6 +9,7 @@ defmodule Explorer.SmartContract.Reader do
   alias EthereumJSONRPC.Contract
   alias Explorer.Chain
   alias Explorer.Chain.{Hash, SmartContract}
+  alias Explorer.SmartContract.Helper
 
   @typedoc """
   Map of functions to call with the values for the function to be called with.
@@ -203,7 +204,7 @@ defmodule Explorer.SmartContract.Reader do
         abi_with_method_id = get_abi_with_method_id(abi)
 
         abi_with_method_id
-        |> Enum.filter(&(&1["constant"] || &1["stateMutability"] == "view"))
+        |> Enum.filter(&Helper.queriable_method?(&1))
         |> Enum.map(&fetch_current_value_from_blockchain(&1, abi_with_method_id, contract_address_hash))
     end
   end
@@ -219,7 +220,7 @@ defmodule Explorer.SmartContract.Reader do
         implementation_abi_with_method_id = get_abi_with_method_id(implementation_abi)
 
         implementation_abi_with_method_id
-        |> Enum.filter(&(&1["constant"] || &1["stateMutability"] == "view"))
+        |> Enum.filter(&Helper.queriable_method?(&1))
         |> Enum.map(&fetch_current_value_from_blockchain(&1, implementation_abi_with_method_id, contract_address_hash))
     end
   end
diff --git a/apps/explorer/lib/explorer/smart_contract/writer.ex b/apps/explorer/lib/explorer/smart_contract/writer.ex
index 872742fe73..334366b8bf 100644
--- a/apps/explorer/lib/explorer/smart_contract/writer.ex
+++ b/apps/explorer/lib/explorer/smart_contract/writer.ex
@@ -4,6 +4,7 @@ defmodule Explorer.SmartContract.Writer do
   """
 
   alias Explorer.Chain
+  alias Explorer.SmartContract.Helper
 
   @spec write_functions(Hash.t()) :: [%{}]
   def write_functions(contract_address_hash) do
@@ -37,21 +38,12 @@ defmodule Explorer.SmartContract.Writer do
   end
 
   def write_function?(function) do
-    !event?(function) && !constructor?(function) &&
-      (payable?(function) || nonpayable?(function))
+    !Helper.event?(function) && !Helper.constructor?(function) &&
+      (Helper.payable?(function) || Helper.nonpayable?(function))
   end
 
   defp filter_write_functions(abi) do
     abi
     |> Enum.filter(&write_function?(&1))
   end
-
-  defp event?(function), do: function["type"] == "event"
-  defp constructor?(function), do: function["type"] == "constructor"
-  defp payable?(function), do: function["stateMutability"] == "payable" || function["payable"]
-
-  defp nonpayable?(function),
-    do:
-      function["stateMutability"] == "nonpayable" ||
-        (!function["payable"] && !function["constant"] && !function["stateMutability"])
 end
diff --git a/apps/explorer/test/explorer/smart_contract/helper_test.exs b/apps/explorer/test/explorer/smart_contract/helper_test.exs
new file mode 100644
index 0000000000..4cd3832434
--- /dev/null
+++ b/apps/explorer/test/explorer/smart_contract/helper_test.exs
@@ -0,0 +1,127 @@
+defmodule Explorer.SmartContract.HelperTest do
+  use ExUnit.Case, async: true
+
+  use Explorer.DataCase
+  alias Explorer.SmartContract.Helper
+
+  describe "payable?" do
+    test "returns true when there is payable function" do
+      function = %{
+        "type" => "function",
+        "stateMutability" => "payable",
+        "payable" => true,
+        "outputs" => [],
+        "name" => "upgradeToAndCall",
+        "inputs" => [
+          %{"type" => "uint256", "name" => "version"},
+          %{"type" => "address", "name" => "implementation"},
+          %{"type" => "bytes", "name" => "data"}
+        ],
+        "constant" => false
+      }
+
+      assert Helper.payable?(function)
+    end
+
+    test "returns true when there is old-style payable function" do
+      function = %{
+        "type" => "function",
+        "payable" => true,
+        "outputs" => [],
+        "name" => "upgradeToAndCall",
+        "inputs" => [
+          %{"type" => "uint256", "name" => "version"},
+          %{"type" => "address", "name" => "implementation"},
+          %{"type" => "bytes", "name" => "data"}
+        ],
+        "constant" => false
+      }
+
+      assert Helper.payable?(function)
+    end
+
+    test "returns false when it is nonpayable function" do
+      function = %{
+        "type" => "function",
+        "stateMutability" => "nonpayable",
+        "payable" => false,
+        "outputs" => [],
+        "name" => "transferProxyOwnership",
+        "inputs" => [%{"type" => "address", "name" => "newOwner"}],
+        "constant" => false
+      }
+
+      refute Helper.payable?(function)
+    end
+
+    test "returns false when there is no function" do
+      function = %{}
+
+      refute Helper.payable?(function)
+    end
+
+    test "returns false when function is nil" do
+      function = nil
+
+      refute Helper.payable?(function)
+    end
+  end
+
+  describe "nonpayable?" do
+    test "returns true when there is nonpayable function" do
+      function = %{
+        "type" => "function",
+        "stateMutability" => "nonpayable",
+        "payable" => false,
+        "outputs" => [],
+        "name" => "transferProxyOwnership",
+        "inputs" => [%{"type" => "address", "name" => "newOwner"}],
+        "constant" => false
+      }
+
+      assert Helper.nonpayable?(function)
+    end
+
+    test "returns true when there is old-style nonpayable function" do
+      function = %{
+        "type" => "function",
+        "outputs" => [],
+        "name" => "test",
+        "inputs" => [%{"type" => "address", "name" => "newOwner"}],
+        "constant" => false
+      }
+
+      assert Helper.nonpayable?(function)
+    end
+
+    test "returns false when it is payable function" do
+      function = %{
+        "type" => "function",
+        "stateMutability" => "payable",
+        "payable" => true,
+        "outputs" => [],
+        "name" => "upgradeToAndCall",
+        "inputs" => [
+          %{"type" => "uint256", "name" => "version"},
+          %{"type" => "address", "name" => "implementation"},
+          %{"type" => "bytes", "name" => "data"}
+        ],
+        "constant" => false
+      }
+
+      refute Helper.nonpayable?(function)
+    end
+
+    test "returns true when there is no function" do
+      function = %{}
+
+      refute Helper.nonpayable?(function)
+    end
+
+    test "returns false when function is nil" do
+      function = nil
+
+      refute Helper.nonpayable?(function)
+    end
+  end
+end