diff --git a/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/execution/TracedJsonRpcProcessor.java b/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/execution/TracedJsonRpcProcessor.java
index 822c6ac895..f1a799cf63 100644
--- a/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/execution/TracedJsonRpcProcessor.java
+++ b/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/execution/TracedJsonRpcProcessor.java
@@ -74,8 +74,8 @@ public class TracedJsonRpcProcessor implements JsonRpcProcessor {
         case INVALID_DEPOSIT_REQUEST_PARAMS:
         case INVALID_ENGINE_EXCHANGE_TRANSITION_CONFIGURATION_PARAMS:
         case INVALID_ENGINE_FORKCHOICE_UPDATED_PARAMS:
-        case INVALID_ENGINE_PAYLOAD_ATTRIBUTES_PARAMS:
-        case INVALID_ENGINE_PAYLOAD_PARAMS:
+        case INVALID_ENGINE_FORKCHOICE_UPDATED_PAYLOAD_ATTRIBUTES:
+        case INVALID_ENGINE_NEW_PAYLOAD_PARAMS:
         case INVALID_ENGINE_PREPARE_PAYLOAD_PARAMS:
         case INVALID_ENODE_PARAMS:
         case INVALID_EXCESS_BLOB_GAS_PARAMS:
diff --git a/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/engine/AbstractEngineForkchoiceUpdated.java b/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/engine/AbstractEngineForkchoiceUpdated.java
index eec79e9a7c..f958b58444 100644
--- a/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/engine/AbstractEngineForkchoiceUpdated.java
+++ b/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/engine/AbstractEngineForkchoiceUpdated.java
@@ -27,6 +27,7 @@ import org.hyperledger.besu.consensus.merge.blockcreation.PayloadIdentifier;
 import org.hyperledger.besu.datatypes.Hash;
 import org.hyperledger.besu.ethereum.ProtocolContext;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.JsonRpcRequestContext;
+import org.hyperledger.besu.ethereum.api.jsonrpc.internal.exception.InvalidJsonRpcParameters;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.methods.ExecutionEngineJsonRpcMethod;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.parameters.EngineForkchoiceUpdatedParameter;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.parameters.EnginePayloadAttributesParameter;
@@ -80,10 +81,25 @@ public abstract class AbstractEngineForkchoiceUpdated extends ExecutionEngineJso
 
     final Object requestId = requestContext.getRequest().getId();
 
-    final EngineForkchoiceUpdatedParameter forkChoice =
-        requestContext.getRequiredParameter(0, EngineForkchoiceUpdatedParameter.class);
-    final Optional<EnginePayloadAttributesParameter> maybePayloadAttributes =
-        requestContext.getOptionalParameter(1, EnginePayloadAttributesParameter.class);
+    final EngineForkchoiceUpdatedParameter forkChoice;
+    try {
+      forkChoice = requestContext.getRequiredParameter(0, EngineForkchoiceUpdatedParameter.class);
+    } catch (Exception e) { // TODO:replace with JsonRpcParameter.JsonRpcParameterException
+      throw new InvalidJsonRpcParameters(
+          "Invalid engine forkchoice updated parameter (index 0)",
+          RpcErrorType.INVALID_ENGINE_FORKCHOICE_UPDATED_PARAMS,
+          e);
+    }
+    final Optional<EnginePayloadAttributesParameter> maybePayloadAttributes;
+    try {
+      maybePayloadAttributes =
+          requestContext.getOptionalParameter(1, EnginePayloadAttributesParameter.class);
+    } catch (Exception e) { // TODO:replace with JsonRpcParameter.JsonRpcParameterException
+      throw new InvalidJsonRpcParameters(
+          "Invalid engine payload attributes parameter (index 1)",
+          RpcErrorType.INVALID_ENGINE_FORKCHOICE_UPDATED_PAYLOAD_ATTRIBUTES,
+          e);
+    }
 
     LOG.debug("Forkchoice parameters {}", forkChoice);
     mergeContext
diff --git a/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/engine/AbstractEngineNewPayload.java b/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/engine/AbstractEngineNewPayload.java
index 246a2777c8..5d0d379d81 100644
--- a/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/engine/AbstractEngineNewPayload.java
+++ b/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/engine/AbstractEngineNewPayload.java
@@ -35,6 +35,7 @@ import org.hyperledger.besu.datatypes.Wei;
 import org.hyperledger.besu.ethereum.BlockProcessingResult;
 import org.hyperledger.besu.ethereum.ProtocolContext;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.JsonRpcRequestContext;
+import org.hyperledger.besu.ethereum.api.jsonrpc.internal.exception.InvalidJsonRpcRequestException;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.methods.ExecutionEngineJsonRpcMethod;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.parameters.ConsolidationRequestParameter;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.parameters.DepositRequestParameter;
@@ -107,8 +108,15 @@ public abstract class AbstractEngineNewPayload extends ExecutionEngineJsonRpcMet
   public JsonRpcResponse syncResponse(final JsonRpcRequestContext requestContext) {
     engineCallListener.executionEngineCalled();
 
-    final EnginePayloadParameter blockParam =
-        requestContext.getRequiredParameter(0, EnginePayloadParameter.class);
+    final EnginePayloadParameter blockParam;
+    try {
+      blockParam = requestContext.getRequiredParameter(0, EnginePayloadParameter.class);
+    } catch (Exception e) { // TODO:replace with JsonRpcParameter.JsonRpcParameterException
+      throw new InvalidJsonRpcRequestException(
+          "Invalid engine payload parameter (index 0)",
+          RpcErrorType.INVALID_ENGINE_NEW_PAYLOAD_PARAMS,
+          e);
+    }
 
     final Optional<List<String>> maybeVersionedHashParam =
         requestContext.getOptionalList(1, String.class);
diff --git a/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/engine/EnginePreparePayloadDebug.java b/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/engine/EnginePreparePayloadDebug.java
index 26f8e99edd..e55cfb1506 100644
--- a/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/engine/EnginePreparePayloadDebug.java
+++ b/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/engine/EnginePreparePayloadDebug.java
@@ -23,6 +23,7 @@ import org.hyperledger.besu.consensus.merge.blockcreation.PayloadIdentifier;
 import org.hyperledger.besu.ethereum.ProtocolContext;
 import org.hyperledger.besu.ethereum.api.jsonrpc.RpcMethod;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.JsonRpcRequestContext;
+import org.hyperledger.besu.ethereum.api.jsonrpc.internal.exception.InvalidJsonRpcParameters;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.methods.ExecutionEngineJsonRpcMethod;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.parameters.EnginePreparePayloadParameter;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.parameters.WithdrawalParameter;
@@ -58,17 +59,25 @@ public class EnginePreparePayloadDebug extends ExecutionEngineJsonRpcMethod {
 
   @Override
   public JsonRpcResponse syncResponse(final JsonRpcRequestContext requestContext) {
-    final EnginePreparePayloadParameter enginePreparePayloadParameter =
-        requestContext
-            .getOptionalParameter(0, EnginePreparePayloadParameter.class)
-            .orElse(
-                new EnginePreparePayloadParameter(
-                    Optional.empty(),
-                    Optional.empty(),
-                    Optional.empty(),
-                    Optional.empty(),
-                    Optional.empty(),
-                    Optional.empty()));
+    final EnginePreparePayloadParameter enginePreparePayloadParameter;
+    try {
+      enginePreparePayloadParameter =
+          requestContext
+              .getOptionalParameter(0, EnginePreparePayloadParameter.class)
+              .orElse(
+                  new EnginePreparePayloadParameter(
+                      Optional.empty(),
+                      Optional.empty(),
+                      Optional.empty(),
+                      Optional.empty(),
+                      Optional.empty(),
+                      Optional.empty()));
+    } catch (Exception e) { // TODO:replace with JsonRpcParameter.JsonRpcParameterException
+      throw new InvalidJsonRpcParameters(
+          "Invalid engine prepare payload parameter (index 0)",
+          RpcErrorType.INVALID_ENGINE_PREPARE_PAYLOAD_PARAMS,
+          e);
+    }
 
     final var requestId = requestContext.getRequest().getId();
 
@@ -81,7 +90,10 @@ public class EnginePreparePayloadDebug extends ExecutionEngineJsonRpcMethod {
             payloadIdentifier ->
                 new JsonRpcSuccessResponse(
                     requestId, new EnginePreparePayloadResult(VALID, payloadIdentifier)))
-        .orElseGet(() -> new JsonRpcErrorResponse(requestId, RpcErrorType.INVALID_PARAMS));
+        .orElseGet(
+            () ->
+                new JsonRpcErrorResponse(
+                    requestId, RpcErrorType.INVALID_ENGINE_PREPARE_PAYLOAD_PARAMS));
   }
 
   @VisibleForTesting
diff --git a/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/response/RpcErrorType.java b/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/response/RpcErrorType.java
index d46dc900c5..d16c258879 100644
--- a/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/response/RpcErrorType.java
+++ b/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/response/RpcErrorType.java
@@ -52,9 +52,9 @@ public enum RpcErrorType implements RpcMethodError {
       INVALID_PARAMS_ERROR_CODE, "Invalid engine exchange transition configuration params"),
   INVALID_ENGINE_FORKCHOICE_UPDATED_PARAMS(
       INVALID_PARAMS_ERROR_CODE, "Invalid engine forkchoice updated params"),
-  INVALID_ENGINE_PAYLOAD_ATTRIBUTES_PARAMS(
+  INVALID_ENGINE_FORKCHOICE_UPDATED_PAYLOAD_ATTRIBUTES(
       INVALID_PARAMS_ERROR_CODE, "Invalid engine payload attributes parameter"),
-  INVALID_ENGINE_PAYLOAD_PARAMS(INVALID_PARAMS_ERROR_CODE, "Invalid engine payload parameter"),
+  INVALID_ENGINE_NEW_PAYLOAD_PARAMS(INVALID_PARAMS_ERROR_CODE, "Invalid engine payload parameter"),
   INVALID_ENGINE_PREPARE_PAYLOAD_PARAMS(
       INVALID_PARAMS_ERROR_CODE, "Invalid engine prepare payload parameter"),
   INVALID_ENODE_PARAMS(INVALID_PARAMS_ERROR_CODE, "Invalid enode params"),