diff --git a/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/Web3Sha3.java b/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/Web3Sha3.java
index b1d137bb6b7..b06cd572934 100644
--- a/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/Web3Sha3.java
+++ b/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/Web3Sha3.java
@@ -17,6 +17,7 @@
 import org.hyperledger.besu.crypto.Hash;
 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.response.JsonRpcErrorResponse;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.response.JsonRpcResponse;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.response.JsonRpcSuccessResponse;
@@ -41,11 +42,17 @@ public JsonRpcResponse response(final JsonRpcRequestContext requestContext) {
           requestContext.getRequest().getId(), RpcErrorType.INVALID_PARAMS);
     }
 
-    final String data = requestContext.getRequiredParameter(0, String.class);
+    final String data;
+    try {
+      data = requestContext.getRequiredParameter(0, String.class);
+    } catch (Exception e) { // TODO:replace with JsonRpcParameter.JsonRpcParameterException
+      throw new InvalidJsonRpcParameters(
+          "Invalid data parameter (index 0)", RpcErrorType.INVALID_DATA_PARAMS, e);
+    }
 
     if (!data.isEmpty() && !data.startsWith("0x")) {
       return new JsonRpcErrorResponse(
-          requestContext.getRequest().getId(), RpcErrorType.INVALID_PARAMS);
+          requestContext.getRequest().getId(), RpcErrorType.INVALID_DATA_PARAMS);
     }
 
     try {
@@ -54,7 +61,7 @@ public JsonRpcResponse response(final JsonRpcRequestContext requestContext) {
           requestContext.getRequest().getId(), Hash.keccak256(byteData).toString());
     } catch (final IllegalArgumentException err) {
       return new JsonRpcErrorResponse(
-          requestContext.getRequest().getId(), RpcErrorType.INVALID_PARAMS);
+          requestContext.getRequest().getId(), RpcErrorType.INVALID_DATA_PARAMS);
     }
   }
 }
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 8d7a12f2541..246a2777c8a 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
@@ -169,8 +169,7 @@ public JsonRpcResponse syncResponse(final JsonRpcRequestContext requestContext)
     if (!getDepositRequestValidator(
             protocolSchedule.get(), blockParam.getTimestamp(), blockParam.getBlockNumber())
         .validateParameter(maybeDepositRequests)) {
-      return new JsonRpcErrorResponse(
-          reqId, new JsonRpcError(INVALID_PARAMS, "Invalid deposit request"));
+      return new JsonRpcErrorResponse(reqId, RpcErrorType.INVALID_DEPOSIT_REQUEST_PARAMS);
     }
 
     final Optional<List<Request>> maybeWithdrawalRequests =
diff --git a/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/engine/EngineExchangeTransitionConfiguration.java b/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/engine/EngineExchangeTransitionConfiguration.java
index fdb94df9d67..67b86575336 100644
--- a/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/engine/EngineExchangeTransitionConfiguration.java
+++ b/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/engine/EngineExchangeTransitionConfiguration.java
@@ -20,10 +20,12 @@
 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.EngineExchangeTransitionConfigurationParameter;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.response.JsonRpcResponse;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.response.JsonRpcSuccessResponse;
+import org.hyperledger.besu.ethereum.api.jsonrpc.internal.response.RpcErrorType;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.results.EngineExchangeTransitionConfigurationResult;
 import org.hyperledger.besu.ethereum.core.BlockHeader;
 import org.hyperledger.besu.ethereum.core.Difficulty;
@@ -65,9 +67,17 @@ public String getName() {
   public JsonRpcResponse syncResponse(final JsonRpcRequestContext requestContext) {
     engineCallListener.executionEngineCalled();
 
-    final EngineExchangeTransitionConfigurationParameter remoteTransitionConfiguration =
-        requestContext.getRequiredParameter(
-            0, EngineExchangeTransitionConfigurationParameter.class);
+    final EngineExchangeTransitionConfigurationParameter remoteTransitionConfiguration;
+    try {
+      remoteTransitionConfiguration =
+          requestContext.getRequiredParameter(
+              0, EngineExchangeTransitionConfigurationParameter.class);
+    } catch (Exception e) { // TODO:replace with JsonRpcParameter.JsonRpcParameterException
+      throw new InvalidJsonRpcParameters(
+          "Invalid engine exchange transition configuration parameters (index 0)",
+          RpcErrorType.INVALID_ENGINE_EXCHANGE_TRANSITION_CONFIGURATION_PARAMS,
+          e);
+    }
     final Object reqId = requestContext.getRequest().getId();
 
     LOG.atTrace()
diff --git a/ethereum/api/src/test/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/Web3Sha3Test.java b/ethereum/api/src/test/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/Web3Sha3Test.java
index 83310ead028..a978e5c0c1d 100644
--- a/ethereum/api/src/test/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/Web3Sha3Test.java
+++ b/ethereum/api/src/test/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/Web3Sha3Test.java
@@ -70,7 +70,7 @@ public void shouldReturnErrorOnOddLengthParam() {
             new JsonRpcRequest("2", "web3_sha3", new Object[] {"0x68656c6c6f20776f726c6"}));
 
     final JsonRpcResponse expected =
-        new JsonRpcErrorResponse(request.getRequest().getId(), RpcErrorType.INVALID_PARAMS);
+        new JsonRpcErrorResponse(request.getRequest().getId(), RpcErrorType.INVALID_DATA_PARAMS);
     final JsonRpcResponse actual = method.response(request);
 
     assertThat(actual).usingRecursiveComparison().isEqualTo(expected);
@@ -83,7 +83,7 @@ public void shouldReturnErrorOnNonHexParam() {
             new JsonRpcRequest("2", "web3_sha3", new Object[] {"0x68656c6c6fThisIsNotHex"}));
 
     final JsonRpcResponse expected =
-        new JsonRpcErrorResponse(request.getRequest().getId(), RpcErrorType.INVALID_PARAMS);
+        new JsonRpcErrorResponse(request.getRequest().getId(), RpcErrorType.INVALID_DATA_PARAMS);
     final JsonRpcResponse actual = method.response(request);
 
     assertThat(actual).usingRecursiveComparison().isEqualTo(expected);
@@ -96,7 +96,7 @@ public void shouldReturnErrorOnNoPrefixParam() {
             new JsonRpcRequest("2", "web3_sha3", new Object[] {"68656c6c6f20776f726c64"}));
 
     final JsonRpcResponse expected =
-        new JsonRpcErrorResponse(request.getRequest().getId(), RpcErrorType.INVALID_PARAMS);
+        new JsonRpcErrorResponse(request.getRequest().getId(), RpcErrorType.INVALID_DATA_PARAMS);
     final JsonRpcResponse actual = method.response(request);
 
     assertThat(actual).usingRecursiveComparison().isEqualTo(expected);
@@ -109,7 +109,7 @@ public void shouldReturnErrorOnNoPrefixNonHexParam() {
             new JsonRpcRequest("2", "web3_sha3", new Object[] {"68656c6c6fThisIsNotHex"}));
 
     final JsonRpcResponse expected =
-        new JsonRpcErrorResponse(request.getRequest().getId(), RpcErrorType.INVALID_PARAMS);
+        new JsonRpcErrorResponse(request.getRequest().getId(), RpcErrorType.INVALID_DATA_PARAMS);
     final JsonRpcResponse actual = method.response(request);
 
     assertThat(actual).usingRecursiveComparison().isEqualTo(expected);