diff --git a/app/core/BackgroundBridge/BackgroundBridge.js b/app/core/BackgroundBridge/BackgroundBridge.js
index 73ac7a3efd52..964a6da967a4 100644
--- a/app/core/BackgroundBridge/BackgroundBridge.js
+++ b/app/core/BackgroundBridge/BackgroundBridge.js
@@ -1,11 +1,11 @@
 /* eslint-disable import/no-commonjs */
 import URL from 'url-parse';
-import { JsonRpcEngine } from 'json-rpc-engine';
 import {
   createSelectedNetworkMiddleware,
   METAMASK_DOMAIN,
 } from '@metamask/selected-network-controller';
 import EthQuery from '@metamask/eth-query';
+import { JsonRpcEngine } from '@metamask/json-rpc-engine';
 import MobilePortStream from '../MobilePortStream';
 import { setupMultiplex } from '../../util/streams';
 import {
@@ -25,10 +25,10 @@ import snapMethodMiddlewareBuilder from '../Snaps/SnapsMethodMiddleware';
 import { SubjectType } from '@metamask/permission-controller';
 ///: END:ONLY_INCLUDE_IF
 
+import { createEngineStream } from '@metamask/json-rpc-middleware-stream';
 const createFilterMiddleware = require('@metamask/eth-json-rpc-filters');
 const createSubscriptionManager = require('@metamask/eth-json-rpc-filters/subscriptionManager');
-const { providerAsMiddleware } = require('@metamask/eth-json-rpc-middleware');
-import { createEngineStream } from '@metamask/json-rpc-middleware-stream';
+import { providerAsMiddleware } from '@metamask/eth-json-rpc-middleware';
 const pump = require('pump');
 // eslint-disable-next-line import/no-nodejs-modules
 const EventEmitter = require('events').EventEmitter;
@@ -388,11 +388,7 @@ export class BackgroundBridge extends EventEmitter {
 
     pump(outStream, providerStream, outStream, (err) => {
       // handle any middleware cleanup
-      this.engine._middleware.forEach((mid) => {
-        if (mid.destroy && typeof mid.destroy === 'function') {
-          mid.destroy();
-        }
-      });
+      this.engine.destroy();
       if (err) Logger.log('Error with provider stream conn', err);
     });
   }
diff --git a/app/core/Encryptor/pbkdf2.test.ts b/app/core/Encryptor/pbkdf2.test.ts
index e679b63b7f03..dd4589be55cf 100644
--- a/app/core/Encryptor/pbkdf2.test.ts
+++ b/app/core/Encryptor/pbkdf2.test.ts
@@ -9,7 +9,7 @@ describe('pbkdf2', () => {
   afterEach(() => {
     jest.restoreAllMocks();
   });
-  
+
   it('uses the native implementation of pbkdf2 with main aes', async () => {
     NativeModules.Aes.pbkdf2 = jest
       .fn()
diff --git a/app/core/Engine/controllers/RemoteFeatureFlagController/index.ts b/app/core/Engine/controllers/RemoteFeatureFlagController/index.ts
index 54fc847b3970..49a15d2409e8 100644
--- a/app/core/Engine/controllers/RemoteFeatureFlagController/index.ts
+++ b/app/core/Engine/controllers/RemoteFeatureFlagController/index.ts
@@ -1,2 +1 @@
 export { createRemoteFeatureFlagController } from './utils';
-
diff --git a/app/core/Engine/controllers/RemoteFeatureFlagController/types.ts b/app/core/Engine/controllers/RemoteFeatureFlagController/types.ts
index b42163fa2350..4e024983f3e7 100644
--- a/app/core/Engine/controllers/RemoteFeatureFlagController/types.ts
+++ b/app/core/Engine/controllers/RemoteFeatureFlagController/types.ts
@@ -2,7 +2,6 @@ import { RemoteFeatureFlagControllerMessenger, RemoteFeatureFlagControllerState
 
 export interface RemoteFeatureFlagInitParamTypes {
   state?: RemoteFeatureFlagControllerState;
-  messenger: RemoteFeatureFlagControllerMessenger,
-  disabled: boolean
+  messenger: RemoteFeatureFlagControllerMessenger;
+  disabled: boolean;
 }
-
diff --git a/app/core/Engine/controllers/RemoteFeatureFlagController/utils.test.ts b/app/core/Engine/controllers/RemoteFeatureFlagController/utils.test.ts
index 21da6091ed9a..39ab4c1013a4 100644
--- a/app/core/Engine/controllers/RemoteFeatureFlagController/utils.test.ts
+++ b/app/core/Engine/controllers/RemoteFeatureFlagController/utils.test.ts
@@ -16,7 +16,6 @@ describe('RemoteFeatureFlagController utils', () => {
 
   describe('createRemoteFeatureFlagController', () => {
     it('creates controller with initial undefined state', () => {
-
       const controller = createRemoteFeatureFlagController({
         state: undefined,
         messenger,
diff --git a/app/core/Engine/controllers/RemoteFeatureFlagController/utils.ts b/app/core/Engine/controllers/RemoteFeatureFlagController/utils.ts
index c45fbe167bf2..55477c7a0995 100644
--- a/app/core/Engine/controllers/RemoteFeatureFlagController/utils.ts
+++ b/app/core/Engine/controllers/RemoteFeatureFlagController/utils.ts
@@ -34,7 +34,6 @@ export const createRemoteFeatureFlagController = ({
   messenger,
   disabled,
 }: RemoteFeatureFlagInitParamTypes) => {
-
   const remoteFeatureFlagController = new RemoteFeatureFlagController({
     messenger,
     state,
@@ -58,4 +57,3 @@ export const createRemoteFeatureFlagController = ({
   }
   return remoteFeatureFlagController;
 };
-
diff --git a/app/core/Ledger/Ledger.ts b/app/core/Ledger/Ledger.ts
index fc595ea711e7..49ec0a513c9a 100644
--- a/app/core/Ledger/Ledger.ts
+++ b/app/core/Ledger/Ledger.ts
@@ -251,4 +251,3 @@ export const unlockLedgerWalletAccount = async (index: number) => {
   }
 };
 
-
diff --git a/app/core/RPCMethods/RPCMethodMiddleware.test.ts b/app/core/RPCMethods/RPCMethodMiddleware.test.ts
index 9f02e4ae2f51..65070c13421f 100644
--- a/app/core/RPCMethods/RPCMethodMiddleware.test.ts
+++ b/app/core/RPCMethods/RPCMethodMiddleware.test.ts
@@ -1,13 +1,14 @@
-import {
-  JsonRpcEngine,
+import { JsonRpcEngine, JsonRpcMiddleware } from '@metamask/json-rpc-engine';
+import type {
+  Json,
   JsonRpcFailure,
-  JsonRpcMiddleware,
+  JsonRpcParams,
   JsonRpcRequest,
   JsonRpcResponse,
   JsonRpcSuccess,
-} from 'json-rpc-engine';
+} from '@metamask/utils';
+import { type JsonRpcError, providerErrors, rpcErrors } from '@metamask/rpc-errors';
 import type { TransactionParams } from '@metamask/transaction-controller';
-import { providerErrors, rpcErrors } from '@metamask/rpc-errors';
 import Engine from '../Engine';
 import { store } from '../../store';
 import { getPermittedAccounts } from '../Permissions';
@@ -106,8 +107,8 @@ const jsonrpc = '2.0' as const;
  * @throws If the given value is not a valid {@link JsonRpcSuccess} object.
  */
 function assertIsJsonRpcSuccess(
-  response: JsonRpcResponse<unknown>,
-): asserts response is JsonRpcSuccess<unknown> {
+  response: JsonRpcResponse<Json>,
+): asserts response is JsonRpcSuccess<Json> {
   if ('error' in response) {
     throw new Error(`Response failed with error '${JSON.stringify('error')}'`);
   } else if (!('result' in response)) {
@@ -208,8 +209,8 @@ async function callMiddleware({
   middleware,
   request,
 }: {
-  middleware: JsonRpcMiddleware<unknown, unknown>;
-  request: JsonRpcRequest<unknown>;
+  middleware: JsonRpcMiddleware<JsonRpcParams, Json>;
+  request: JsonRpcRequest<JsonRpcParams>;
 }) {
   const engine = new JsonRpcEngine();
   engine.push(middleware);
@@ -415,7 +416,6 @@ describe('getRpcMethodMiddleware', () => {
       permissionController.createPermissionMiddleware({
         origin: hostMock,
       });
-    // @ts-expect-error JsonRpcId (number | string | void) doesn't match PS middleware's id, which is (string | number | null)
     engine.push(permissionMiddleware);
     const middleware = getRpcMethodMiddleware(getMinimalOptions());
     engine.push(middleware);
@@ -1096,7 +1096,8 @@ describe('getRpcMethodMiddleware', () => {
     it('returns a JSON-RPC error if an error is thrown when adding this transaction', async () => {
       // Omit `from` and `chainId` here to skip validation for simplicity
       // Downcast needed here because `from` is required by this type
-      const mockTransactionParameters = {} as TransactionParams;
+      const mockTransactionParameters = {} as (TransactionParams &
+        JsonRpcParams)[];
       // Transaction fails before returning a result
       mockAddTransaction.mockImplementation(async () => {
         throw new Error('Failed to add transaction');
@@ -1119,12 +1120,17 @@ describe('getRpcMethodMiddleware', () => {
       expect((response as JsonRpcFailure).error.message).toBe(
         expectedError.message,
       );
+      // eslint-disable-next-line @typescript-eslint/no-explicit-any
+      expect(((response as JsonRpcFailure).error as JsonRpcError<any>).data.cause.message).toBe(
+        expectedError.message,
+      );
     });
 
     it('returns a JSON-RPC error if an error is thrown after approval', async () => {
       // Omit `from` and `chainId` here to skip validation for simplicity
       // Downcast needed here because `from` is required by this type
-      const mockTransactionParameters = {} as TransactionParams;
+      const mockTransactionParameters = {} as (TransactionParams &
+        JsonRpcParams)[];
       setupGlobalState({
         addTransactionResult: Promise.reject(
           new Error('Failed to process transaction'),
@@ -1233,7 +1239,7 @@ describe('getRpcMethodMiddleware', () => {
         jsonrpc,
         id: 1,
         method: 'personal_ecRecover',
-        params: [undefined, helloWorldSignature],
+        params: [undefined, helloWorldSignature] as JsonRpcParams,
       };
       const expectedError = rpcErrors.internal('Missing data parameter');
 
diff --git a/app/core/RPCMethods/RPCMethodMiddleware.ts b/app/core/RPCMethods/RPCMethodMiddleware.ts
index 4f3580e0d922..787fe3f9b38d 100644
--- a/app/core/RPCMethods/RPCMethodMiddleware.ts
+++ b/app/core/RPCMethods/RPCMethodMiddleware.ts
@@ -1,6 +1,6 @@
 import { Alert } from 'react-native';
 import { getVersion } from 'react-native-device-info';
-import { createAsyncMiddleware } from 'json-rpc-engine';
+import { createAsyncMiddleware } from '@metamask/json-rpc-engine';
 import { providerErrors, rpcErrors } from '@metamask/rpc-errors';
 import {
   EndFlowOptions,
diff --git a/app/core/RPCMethods/createLegacyMethodMiddleware/index.test.ts b/app/core/RPCMethods/createLegacyMethodMiddleware/index.test.ts
index c37ce9bff14b..8ce5f6c89755 100644
--- a/app/core/RPCMethods/createLegacyMethodMiddleware/index.test.ts
+++ b/app/core/RPCMethods/createLegacyMethodMiddleware/index.test.ts
@@ -2,7 +2,7 @@ import {
   JsonRpcEngine,
   JsonRpcEngineEndCallback,
   JsonRpcEngineNextCallback,
-} from 'json-rpc-engine';
+} from '@metamask/json-rpc-engine';
 import {
   Json,
   JsonRpcParams,
@@ -150,6 +150,10 @@ describe('createLegacyMethodMiddleware', () => {
     });
     assertIsJsonRpcFailure(response);
 
+    // Type assertion for the error not having cause object
+    const errorData = response.error.data as { cause?: Error };
+
+    expect(errorData.cause?.message).toBe('test error');
     expect(response.error.message).toBe('test error');
   });
 
@@ -166,6 +170,10 @@ describe('createLegacyMethodMiddleware', () => {
     });
     assertIsJsonRpcFailure(response);
 
+    // Type assertion for the error not having cause object
+    const errorData = response.error.data as { cause?: Error };
+
+    expect(errorData.cause?.message).toBe('test error');
     expect(response.error.message).toBe('test error');
   });
 
diff --git a/app/core/RPCMethods/createUnsupportedMethodMiddleware/index.ts b/app/core/RPCMethods/createUnsupportedMethodMiddleware/index.ts
index 738f6f4c344b..832ef3c74b06 100644
--- a/app/core/RPCMethods/createUnsupportedMethodMiddleware/index.ts
+++ b/app/core/RPCMethods/createUnsupportedMethodMiddleware/index.ts
@@ -1,14 +1,16 @@
 import { rpcErrors } from '@metamask/rpc-errors';
-import type { JsonRpcMiddleware } from 'json-rpc-engine';
+import type { JsonRpcMiddleware } from '@metamask/json-rpc-engine';
+
 import { UNSUPPORTED_RPC_METHODS } from '../utils';
+import { Json, JsonRpcParams } from '@metamask/utils';
 
 /**
  * Creates a middleware that rejects explicitly unsupported RPC methods with the
  * appropriate error.
  */
 const createUnsupportedMethodMiddleware = (): JsonRpcMiddleware<
-  unknown,
-  void
+  JsonRpcParams,
+  Json
 > =>
   async function unsupportedMethodMiddleware(req, _res, next, end) {
     if ((UNSUPPORTED_RPC_METHODS as Set<string>).has(req.method)) {
diff --git a/app/core/RPCMethods/eth_sendTransaction.test.ts b/app/core/RPCMethods/eth_sendTransaction.test.ts
index 1490d436e423..a00c2c17d49f 100644
--- a/app/core/RPCMethods/eth_sendTransaction.test.ts
+++ b/app/core/RPCMethods/eth_sendTransaction.test.ts
@@ -1,6 +1,11 @@
 // eslint-disable-next-line import/no-nodejs-modules
 import { inspect } from 'util';
-import type { JsonRpcRequest, PendingJsonRpcResponse } from 'json-rpc-engine';
+import type {
+  Json,
+  JsonRpcParams,
+  JsonRpcRequest,
+  PendingJsonRpcResponse,
+} from '@metamask/utils';
 import type {
   TransactionParams,
   TransactionController,
@@ -50,8 +55,8 @@ const NETWORK_CLIENT_ID_MOCK = 'testNetworkClientId';
  * @returns The JSON-RPC request.
  */
 function constructSendTransactionRequest(
-  params: unknown,
-): JsonRpcRequest<unknown> & {
+  params: [TransactionParams & JsonRpcParams],
+): JsonRpcRequest<[TransactionParams & JsonRpcParams]> & {
   method: 'eth_sendTransaction';
   networkClientId: string;
 } {
@@ -69,7 +74,7 @@ function constructSendTransactionRequest(
  *
  * @returns A pending JSON-RPC response.
  */
-function constructPendingJsonRpcResponse(): PendingJsonRpcResponse<unknown> {
+function constructPendingJsonRpcResponse(): PendingJsonRpcResponse<Json> {
   return {
     jsonrpc: '2.0',
     id: 1,
@@ -181,6 +186,7 @@ describe('eth_sendTransaction', () => {
         async () =>
           await eth_sendTransaction({
             hostname: 'example.metamask.io',
+            //@ts-expect-error - invalid parameters forced
             req: constructSendTransactionRequest(invalidParameter),
             res: constructPendingJsonRpcResponse(),
             sendTransaction: getMockAddTransaction({
@@ -203,6 +209,7 @@ describe('eth_sendTransaction', () => {
         async () =>
           await eth_sendTransaction({
             hostname: 'example.metamask.io',
+            //@ts-expect-error - invalid parameters forced
             req: constructSendTransactionRequest(invalidParameter),
             res: constructPendingJsonRpcResponse(),
             sendTransaction: getMockAddTransaction({
diff --git a/app/core/RPCMethods/eth_sendTransaction.ts b/app/core/RPCMethods/eth_sendTransaction.ts
index defb22b92809..93ca88c628d9 100644
--- a/app/core/RPCMethods/eth_sendTransaction.ts
+++ b/app/core/RPCMethods/eth_sendTransaction.ts
@@ -1,6 +1,12 @@
-import type { JsonRpcRequest, PendingJsonRpcResponse } from 'json-rpc-engine';
+import type {
+  Json,
+  JsonRpcParams,
+  JsonRpcRequest,
+  PendingJsonRpcResponse,
+} from '@metamask/utils';
 import {
   TransactionController,
+  TransactionParams,
   WalletDevice,
 } from '@metamask/transaction-controller';
 import { rpcErrors } from '@metamask/rpc-errors';
@@ -46,6 +52,11 @@ const hasProperty = <
 ): objectToCheck is ObjectToCheck & Record<Property, unknown> =>
   Object.hasOwnProperty.call(objectToCheck, name);
 
+interface SendArgs {
+  from: string;
+  chainId?: number;
+}
+
 /**
  * Handle a `eth_sendTransaction` request.
  *
@@ -66,16 +77,13 @@ async function eth_sendTransaction({
   validateAccountAndChainId,
 }: {
   hostname: string;
-  req: JsonRpcRequest<unknown> & {
+  req: JsonRpcRequest<[TransactionParams & JsonRpcParams]> & {
     method: 'eth_sendTransaction';
     networkClientId: string;
   };
-  res: PendingJsonRpcResponse<unknown>;
+  res: PendingJsonRpcResponse<Json>;
   sendTransaction: TransactionController['addTransaction'];
-  validateAccountAndChainId: (args: {
-    from: string;
-    chainId?: number;
-  }) => Promise<void>;
+  validateAccountAndChainId: (args: SendArgs) => Promise<void>;
 }) {
   if (
     !Array.isArray(req.params) &&
@@ -91,9 +99,13 @@ async function eth_sendTransaction({
       message: `Invalid parameters: expected the first parameter to be an object`,
     });
   }
+  // TODO: Normalize chainId to Hex string
+  const nChainId = typeof req.params[0].chainId === 'number'
+    ? req.params[0].chainId
+    : parseInt(req.params[0].chainId || '0x0', 16);
   await validateAccountAndChainId({
     from: req.params[0].from,
-    chainId: req.params[0].chainId,
+    chainId: nChainId,
   });
 
   const { result, transactionMeta } = await sendTransaction(req.params[0], {
diff --git a/app/core/RPCMethods/utils.ts b/app/core/RPCMethods/utils.ts
index d5b2c5776116..cb02a3d1805d 100644
--- a/app/core/RPCMethods/utils.ts
+++ b/app/core/RPCMethods/utils.ts
@@ -2,7 +2,7 @@ import { query } from '@metamask/controller-utils';
 import Engine from '../Engine';
 import { selectHooks } from '@metamask/snaps-rpc-methods';
 import { OptionalDataWithOptionalCause, rpcErrors } from '@metamask/rpc-errors';
-import { JsonRpcMiddleware } from 'json-rpc-engine';
+import { JsonRpcMiddleware } from '@metamask/json-rpc-engine';
 import { PermittedHandlerExport } from '@metamask/permission-controller';
 import { Json, JsonRpcParams, hasProperty } from '@metamask/utils';
 import EthQuery from '@metamask/eth-query';
@@ -76,7 +76,7 @@ export function makeMethodMiddlewareMaker<U>(
   const makeMethodMiddleware = (hooks: Record<string, unknown>) => {
     assertExpectedHook(hooks, expectedHookNames);
 
-    const methodMiddleware: JsonRpcMiddleware<JsonRpcParams, unknown> = async (
+    const methodMiddleware: JsonRpcMiddleware<JsonRpcParams, Json> = async (
       req,
       res,
       next,
@@ -88,12 +88,11 @@ export function makeMethodMiddlewareMaker<U>(
         try {
           // Implementations may or may not be async, so we must await them.
           return await implementation(
-            // @ts-expect-error JsonRpcId (number | string | void) doesn't match the permission middleware's id, which is (string | number | null)
             req,
             res,
             next,
             end,
-            selectHooks(hooks, hookNames),
+            selectHooks(hooks, hookNames) as U,
           );
         } catch (error) {
           if (process.env.METAMASK_DEBUG) {
diff --git a/app/core/RPCMethods/wallet_watchAsset.ts b/app/core/RPCMethods/wallet_watchAsset.ts
index fb45849a89a7..6fae74b084ac 100644
--- a/app/core/RPCMethods/wallet_watchAsset.ts
+++ b/app/core/RPCMethods/wallet_watchAsset.ts
@@ -11,8 +11,8 @@ import {
 } from '../../constants/error';
 import { selectChainId, selectNetworkClientId } from '../../selectors/networkController';
 import { isValidAddress } from 'ethereumjs-util';
-import { JsonRpcRequest, PendingJsonRpcResponse } from 'json-rpc-engine';
 import { toChecksumHexAddress } from '@metamask/controller-utils';
+import { JsonRpcRequest, PendingJsonRpcResponse } from '@metamask/utils';
 
 const wallet_watchAsset = async ({
   req,
diff --git a/app/core/SanitizationMiddleware.ts b/app/core/SanitizationMiddleware.ts
index a7eb92f9291e..705b001a4ed2 100644
--- a/app/core/SanitizationMiddleware.ts
+++ b/app/core/SanitizationMiddleware.ts
@@ -1,4 +1,5 @@
-import { JsonRpcMiddleware, JsonRpcRequest } from 'json-rpc-engine';
+import { JsonRpcMiddleware } from '@metamask/json-rpc-engine';
+import type { Json, JsonRpcParams, JsonRpcRequest } from '@metamask/utils';
 import { addHexPrefix } from 'ethereumjs-util';
 
 // We use this to clean any custom params from the txParams
@@ -39,18 +40,20 @@ export const permittedKeys = [
  * @param parameter - The parameter to sanitize.
  * @returns The given parameter containing just permitted keys.
  */
-function sanitizeRpcParameter(parameter: Record<PropertyKey, unknown>) {
-  return permittedKeys.reduce<Record<string, unknown>>((copy, permitted) => {
+function sanitizeRpcParameter(
+  parameter: Record<PropertyKey, unknown>,
+): Record<string, Json> {
+  return permittedKeys.reduce<Record<string, Json>>((copy, permitted) => {
     if (permitted in parameter) {
       const value = parameter[permitted];
       if (Array.isArray(value)) {
-        copy[permitted] = value.map(sanitize);
+        copy[permitted] = value.map(sanitize) as Json;
       } else {
-        copy[permitted] = sanitize(value);
+        copy[permitted] = sanitize(value) as Json;
       }
     }
     return copy;
-  }, {});
+  }, {} as Record<string, Json>);
 }
 
 /**
@@ -80,12 +83,12 @@ function sanitize(value: unknown) {
  * request along.
  */
 export function createSanitizationMiddleware(): JsonRpcMiddleware<
-  unknown,
-  unknown
+  JsonRpcParams,
+  Json
 > {
   // TODO: Replace "any" with type
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
-  return (req: JsonRpcRequest<unknown>, _: any, next: () => any) => {
+  return (req: JsonRpcRequest<JsonRpcParams>, _: any, next: () => any) => {
     if (!Array.isArray(req.params)) {
       next();
       return;
diff --git a/app/core/Snaps/SnapBridge.ts b/app/core/Snaps/SnapBridge.ts
index 93156cc7d49e..f6c0078fc888 100644
--- a/app/core/Snaps/SnapBridge.ts
+++ b/app/core/Snaps/SnapBridge.ts
@@ -10,7 +10,7 @@ import {
   createSwappableProxy,
   createEventEmitterProxy,
 } from '@metamask/swappable-obj-proxy';
-import { JsonRpcEngine } from 'json-rpc-engine';
+import { JsonRpcEngine } from '@metamask/json-rpc-engine';
 import { createEngineStream } from '@metamask/json-rpc-middleware-stream';
 import EthQuery from '@metamask/eth-query';
 
@@ -20,10 +20,10 @@ import Logger from '../../util/Logger';
 import snapMethodMiddlewareBuilder from './SnapsMethodMiddleware';
 import { SubjectType } from '@metamask/permission-controller';
 
-const ObjectMultiplex = require('@metamask/object-multiplex');
-const createFilterMiddleware = require('@metamask/eth-json-rpc-filters');
-const createSubscriptionManager = require('@metamask/eth-json-rpc-filters/subscriptionManager');
-const { providerAsMiddleware } = require('@metamask/eth-json-rpc-middleware');
+import  ObjectMultiplex from '@metamask/object-multiplex';
+import  createFilterMiddleware from '@metamask/eth-json-rpc-filters';
+import createSubscriptionManager from '@metamask/eth-json-rpc-filters/subscriptionManager';
+import { providerAsMiddleware } from '@metamask/eth-json-rpc-middleware';
 const pump = require('pump');
 
 interface ISnapBridgeProps {
@@ -124,14 +124,7 @@ export default class SnapBridge {
     // TODO: Replace "any" with type
     // eslint-disable-next-line @typescript-eslint/no-explicit-any
     pump(outStream, providerStream, outStream, (err: any) => {
-      // handle any middleware cleanup
-      // TODO: Replace "any" with type
-      // eslint-disable-next-line @typescript-eslint/no-explicit-any
-      engine._middleware.forEach((mid: any) => {
-        if (mid.destroy && typeof mid.destroy === 'function') {
-          mid.destroy();
-        }
-      });
+      engine.destroy();
       if (err) Logger.log('Error with provider stream conn', err);
     });
   };
diff --git a/app/core/WalletConnect/extractApprovedAccounts.ts b/app/core/WalletConnect/extractApprovedAccounts.ts
index 8018459950d8..24738d449f84 100644
--- a/app/core/WalletConnect/extractApprovedAccounts.ts
+++ b/app/core/WalletConnect/extractApprovedAccounts.ts
@@ -1,5 +1,5 @@
 import { Caveat, ValidPermission } from '@metamask/permission-controller';
-import { Json } from 'json-rpc-engine';
+import { Json } from '@metamask/utils';
 
 export const extractApprovedAccounts = (
   accountPermission: // TODO: Replace "any" with type
diff --git a/app/core/createTracingMiddleware/index.test.ts b/app/core/createTracingMiddleware/index.test.ts
index c9a6f84ad2d7..f599e8704083 100644
--- a/app/core/createTracingMiddleware/index.test.ts
+++ b/app/core/createTracingMiddleware/index.test.ts
@@ -1,11 +1,11 @@
-import type { JsonRpcRequest, PendingJsonRpcResponse } from 'json-rpc-engine';
+import type { Json, JsonRpcParams, JsonRpcRequest, PendingJsonRpcResponse } from '@metamask/utils';
 import { default as createTracingMiddleware, MESSAGE_TYPE } from './index';
 
 const REQUEST_MOCK = {
   id: 'testId',
   method: MESSAGE_TYPE.PERSONAL_SIGN,
-} as JsonRpcRequest<unknown>;
-const RESPONSE_MOCK = {} as PendingJsonRpcResponse<unknown>;
+} as JsonRpcRequest<JsonRpcParams>;
+const RESPONSE_MOCK = {} as PendingJsonRpcResponse<Json>;
 const NEXT_MOCK = jest.fn();
 
 jest.mock('../../util/trace', () => ({
@@ -14,7 +14,7 @@ jest.mock('../../util/trace', () => ({
 }));
 
 describe('createTracingMiddleware', () => {
-  let request: JsonRpcRequest<unknown> & { traceContext?: unknown };
+  let request: JsonRpcRequest<JsonRpcParams> & { traceContext?: unknown };
   beforeEach(() => {
     jest.clearAllMocks();
     request = { ...REQUEST_MOCK };
diff --git a/app/core/createTracingMiddleware/index.ts b/app/core/createTracingMiddleware/index.ts
index 092447d3d015..5a5b623cdcec 100644
--- a/app/core/createTracingMiddleware/index.ts
+++ b/app/core/createTracingMiddleware/index.ts
@@ -1,4 +1,4 @@
-import type { JsonRpcRequest, PendingJsonRpcResponse } from 'json-rpc-engine';
+import type { Json, JsonRpcParams, JsonRpcRequest, PendingJsonRpcResponse } from '@metamask/utils';
 import { trace, TraceName } from '../../util/trace';
 
 export const MESSAGE_TYPE = {
@@ -19,8 +19,8 @@ const METHOD_TYPE_TO_TRACE_NAME: Record<string, TraceName> = {
 
 export default function createTracingMiddleware() {
   return async function tracingMiddleware(
-    req: JsonRpcRequest<unknown> & { traceContext?: unknown },
-    _res: PendingJsonRpcResponse<unknown>,
+    req: JsonRpcRequest<JsonRpcParams> & { traceContext?: unknown },
+    _res: PendingJsonRpcResponse<Json>,
     next: () => void,
   ) {
     const { id, method } = req;
diff --git a/app/selectors/featureFlagController/index.test.ts b/app/selectors/featureFlagController/index.test.ts
index ff76cdbdefa3..053f7dab92d7 100644
--- a/app/selectors/featureFlagController/index.test.ts
+++ b/app/selectors/featureFlagController/index.test.ts
@@ -26,4 +26,3 @@ describe('featureFlagController selector', () => {
     expect(result).toBeUndefined();
   });
 });
-
diff --git a/app/selectors/featureFlagController/index.ts b/app/selectors/featureFlagController/index.ts
index 01f67f3de0af..ea1c0ebc7d4a 100644
--- a/app/selectors/featureFlagController/index.ts
+++ b/app/selectors/featureFlagController/index.ts
@@ -9,4 +9,3 @@ export const selectRemoteFeatureFlags = createSelector(
   (remoteFeatureFlagControllerState) =>
     remoteFeatureFlagControllerState?.remoteFeatureFlags ?? {}
 );
-
diff --git a/app/selectors/featureFlagController/minimumAppVersion/index.test.ts b/app/selectors/featureFlagController/minimumAppVersion/index.test.ts
index 785cf94a22d1..fe2fd7db7b01 100644
--- a/app/selectors/featureFlagController/minimumAppVersion/index.test.ts
+++ b/app/selectors/featureFlagController/minimumAppVersion/index.test.ts
@@ -45,7 +45,7 @@ describe('minimumAppVersion Feature flag: selectMobileMinimumVersions selector',
   it('returns default values when undefined RemoteFeatureFlagController state', () => {
     testFlagValues(
       selectMobileMinimumVersions(mockedUndefinedFlagsState),
-      defaultValues
+        defaultValues
     );
   });
 
diff --git a/app/selectors/featureFlagController/minimumAppVersion/types.ts b/app/selectors/featureFlagController/minimumAppVersion/types.ts
index 8aaa73501765..b09106973aa3 100644
--- a/app/selectors/featureFlagController/minimumAppVersion/types.ts
+++ b/app/selectors/featureFlagController/minimumAppVersion/types.ts
@@ -7,4 +7,3 @@ export type MinimumAppVersionType = {
   appleMinimumOS: number;
   androidMinimumAPIVersion: number;
 }
-
diff --git a/app/selectors/featureFlagController/mocks.ts b/app/selectors/featureFlagController/mocks.ts
index 8433d6ef2847..99b265fe745e 100644
--- a/app/selectors/featureFlagController/mocks.ts
+++ b/app/selectors/featureFlagController/mocks.ts
@@ -45,4 +45,3 @@ export const getInvalidMockedFeatureFlag = (invalidFeatureFlag: FeatureFlags) =>
     },
   },
 });
-
diff --git a/app/selectors/featureFlagController/types.ts b/app/selectors/featureFlagController/types.ts
index 7640a1b81a1c..ed260398c76e 100644
--- a/app/selectors/featureFlagController/types.ts
+++ b/app/selectors/featureFlagController/types.ts
@@ -6,4 +6,3 @@ export type StateWithPartialEngine = RootState | {
     backgroundState: Partial<EngineState>
   }
 };
-
diff --git a/app/selectors/settings.ts b/app/selectors/settings.ts
index 4f111a2b8c9d..16a228704cf2 100644
--- a/app/selectors/settings.ts
+++ b/app/selectors/settings.ts
@@ -22,4 +22,3 @@ export const selectBasicFunctionalityEnabled = createSelector(
   (settingsState: Record<string, unknown>) =>
     settingsState.basicFunctionalityEnabled as boolean,
 );
-
diff --git a/babel.config.js b/babel.config.js
index 8b3aa3906734..118e11284e47 100644
--- a/babel.config.js
+++ b/babel.config.js
@@ -19,6 +19,13 @@ module.exports = {
       test: './node_modules/@metamask/notification-services-controller',
       plugins: [['@babel/plugin-transform-private-methods', { loose: true }]],
     },
+    {
+      test: [
+        './node_modules/**/@metamask/rpc-errors/**',
+        './node_modules/@metamask/rpc-errors/**',
+      ],
+      plugins: [['@babel/plugin-transform-classes', { loose: true }]],
+    },
     {
       test: './app/lib/snaps',
       plugins: [['babel-plugin-inline-import', { extensions: ['.html'] }]],
diff --git a/bitrise.yml b/bitrise.yml
index 838b9fe67f30..44878376bba8 100644
--- a/bitrise.yml
+++ b/bitrise.yml
@@ -1808,7 +1808,7 @@ app:
       NVM_SHA256SUM: '8e45fa547f428e9196a5613efad3bfa4d4608b74ca870f930090598f5af5f643'
     - opts:
         is_expand: false
-      NODE_VERSION: 20.17.0
+      NODE_VERSION: 20.18.0
     - opts:
         is_expand: false
       YARN_VERSION: 1.22.22
diff --git a/package.json b/package.json
index 3e56519d1009..f3b7384745c1 100644
--- a/package.json
+++ b/package.json
@@ -112,6 +112,7 @@
     "react-native-level-fs/**/bl": "^1.2.3",
     "react-native-level-fs/levelup/semver": "^5.7.2",
     "@metamask/react-native-payments/validator": "^13.7.0",
+    "**/@metamask/utils": "^10.0.0",
     "**/minimist": "1.2.6",
     "d3-color": "3.1.0",
     "tough-cookie": "4.1.3",
@@ -157,6 +158,8 @@
     "@metamask/composable-controller": "^10.0.0",
     "@metamask/controller-utils": "^11.3.0",
     "@metamask/design-tokens": "^4.0.0",
+    "@metamask/eth-json-rpc-filters": "^9.0.0",
+    "@metamask/eth-json-rpc-middleware": "^15.0.0",
     "@metamask/eth-hd-keyring": "^9.0.0",
     "@metamask/eth-json-rpc-filters": "^8.0.0",
     "@metamask/eth-json-rpc-middleware": "^11.0.2",
@@ -168,6 +171,7 @@
     "@metamask/ethjs-contract": "^0.4.1",
     "@metamask/ethjs-query": "^0.7.1",
     "@metamask/ethjs-unit": "^0.3.0",
+    "@metamask/json-rpc-engine": "^10.0.0",
     "@metamask/gas-fee-controller": "^22.0.2",
     "@metamask/json-rpc-middleware-stream": "^8.0.2",
     "@metamask/key-tree": "^9.0.0",
@@ -206,6 +210,7 @@
     "@metamask/swaps-controller": "^11.0.0",
     "@metamask/transaction-controller": "^42.0.0",
     "@metamask/utils": "^10.0.1",
+    "@metamask/swaps-controller": "^11.0.0",
     "@ngraveio/bc-ur": "^1.1.6",
     "@notifee/react-native": "^9.0.0",
     "@react-native-async-storage/async-storage": "^1.23.1",
@@ -253,7 +258,6 @@
     "d3-shape": "^3.2.0",
     "dayjs": "^1.11.13",
     "eciesjs": "^0.3.15",
-    "eth-block-tracker": "^7.0.1",
     "eth-ens-namehash": "2.0.8",
     "eth-url-parser": "1.0.4",
     "ethereumjs-abi": "0.6.6",
@@ -270,7 +274,6 @@
     "human-standard-token-abi": "^2.0.0",
     "humanize-duration": "^3.27.2",
     "is-url": "^1.2.4",
-    "json-rpc-engine": "^6.1.0",
     "lodash": "^4.17.21",
     "lottie-ios": "3.4.1",
     "lottie-react-native": "5.1.5",
diff --git a/yarn.lock b/yarn.lock
index 99a215534f4d..c09b581b05db 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1982,7 +1982,7 @@
   resolved "https://registry.yarnpkg.com/@ethereumjs/rlp/-/rlp-5.0.2.tgz#c89bd82f2f3bec248ab2d517ae25f5bbc4aac842"
   integrity sha512-DziebCdg4JpGlEqEdGgXmjqcFoJi+JGulUXwEjsZGAscAQ7MyD/7LE/GVCP29vEQxKc7AAwjT3A2ywHp2xfoCA==
 
-"@ethereumjs/tx@^4.0.2", "@ethereumjs/tx@^4.1.2", "@ethereumjs/tx@^4.2.0":
+"@ethereumjs/tx@^4.0.2", "@ethereumjs/tx@^4.2.0":
   version "4.2.0"
   resolved "https://registry.yarnpkg.com/@ethereumjs/tx/-/tx-4.2.0.tgz#5988ae15daf5a3b3c815493bc6b495e76009e853"
   integrity sha512-1nc6VO4jtFd172BbSnTnDQVr9IYBFl1y4xPzZdtkrkKIncBCkdbgfdRV+MiTkJYAtTxvV12GRZLqBFT1PNK6Yw==
@@ -5414,7 +5414,7 @@
   resolved "https://registry.yarnpkg.com/@metamask/stake-sdk/-/stake-sdk-0.3.0.tgz#b6156fd29666bfb9482a89b555cfe70b2b63769a"
   integrity sha512-i0QkzEc/7HRpVJbhe+qPORprQaMsuzRBpSgFjKgxbsLhz4YtYVDTgVJ5kesZXNy2KfprYTfeh4oV/jenQWgNJA==
 
-"@metamask/superstruct@^3.0.0", "@metamask/superstruct@^3.1.0":
+"@metamask/superstruct@^3.1.0":
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/@metamask/superstruct/-/superstruct-3.1.0.tgz#148f786a674fba3ac885c1093ab718515bf7f648"
   integrity sha512-N08M56HdOgBfRKkrgCMZvQppkZGcArEop3kixNEtVbJKm6P9Cfg0YkI6X0s1g78sNrj2fWUwvJADdZuzJgFttA==
@@ -5470,7 +5470,7 @@
     lodash "^4.17.21"
     uuid "^8.3.2"
 
-"@metamask/utils@^10.0.0", "@metamask/utils@^10.0.1":
+"@metamask/utils@^10.0.0", "@metamask/utils@^10.0.1", "@metamask/utils@^3.4.1", "@metamask/utils@^5.0.1", "@metamask/utils@^5.0.2", "@metamask/utils@^8.2.0", "@metamask/utils@^8.3.0", "@metamask/utils@^9.0.0", "@metamask/utils@^9.1.0", "@metamask/utils@^9.2.1":
   version "10.0.1"
   resolved "https://registry.yarnpkg.com/@metamask/utils/-/utils-10.0.1.tgz#a765f96c20e35fc51c068fb9f88a3332b40b215e"
   integrity sha512-zHgAitJtRwviVVFnRUA2PLRMaAwatr3jiHgiH7mPicJaeSK4ma01aGR4fHy0iy5tlVo1ZiioTmJ1Hbp8FZ6pSg==
@@ -5485,57 +5485,6 @@
     semver "^7.5.4"
     uuid "^9.0.1"
 
-"@metamask/utils@^3.4.1":
-  version "3.6.0"
-  resolved "https://registry.yarnpkg.com/@metamask/utils/-/utils-3.6.0.tgz#b218b969a05ca7a8093b5d1670f6625061de707d"
-  integrity sha512-9cIRrfkWvHblSiNDVXsjivqa9Ak0RYo/1H6tqTqTbAx+oBK2Sva0lWDHxGchOqA7bySGUJKAWSNJvH6gdHZ0gQ==
-  dependencies:
-    "@types/debug" "^4.1.7"
-    debug "^4.3.4"
-    semver "^7.3.8"
-    superstruct "^1.0.3"
-
-"@metamask/utils@^5.0.1", "@metamask/utils@^5.0.2":
-  version "5.0.2"
-  resolved "https://registry.yarnpkg.com/@metamask/utils/-/utils-5.0.2.tgz#140ba5061d90d9dac0280c19cab101bc18c8857c"
-  integrity sha512-yfmE79bRQtnMzarnKfX7AEJBwFTxvTyw3nBQlu/5rmGXrjAeAMltoGxO62TFurxrQAFMNa/fEjIHNvungZp0+g==
-  dependencies:
-    "@ethereumjs/tx" "^4.1.2"
-    "@types/debug" "^4.1.7"
-    debug "^4.3.4"
-    semver "^7.3.8"
-    superstruct "^1.0.3"
-
-"@metamask/utils@^8.2.0", "@metamask/utils@^8.3.0":
-  version "8.5.0"
-  resolved "https://registry.yarnpkg.com/@metamask/utils/-/utils-8.5.0.tgz#ddd0d4012d5191809404c97648a837ea9962cceb"
-  integrity sha512-I6bkduevXb72TIM9q2LRO63JSsF9EXduh3sBr9oybNX2hNNpr/j1tEjXrsG0Uabm4MJ1xkGAQEMwifvKZIkyxQ==
-  dependencies:
-    "@ethereumjs/tx" "^4.2.0"
-    "@metamask/superstruct" "^3.0.0"
-    "@noble/hashes" "^1.3.1"
-    "@scure/base" "^1.1.3"
-    "@types/debug" "^4.1.7"
-    debug "^4.3.4"
-    pony-cause "^2.1.10"
-    semver "^7.5.4"
-    uuid "^9.0.1"
-
-"@metamask/utils@^9.0.0", "@metamask/utils@^9.1.0", "@metamask/utils@^9.2.1":
-  version "9.2.1"
-  resolved "https://registry.yarnpkg.com/@metamask/utils/-/utils-9.2.1.tgz#d9f84706ff97e0c8d1bde5778549365b14269e81"
-  integrity sha512-/u663aUaB6+Xe75i3Mt/1cCljm41HDYIsna5oBrwGvgkY2zH7/9k9Zjd706cxoAbxN7QgLSVAReUiGnuxCuXrQ==
-  dependencies:
-    "@ethereumjs/tx" "^4.2.0"
-    "@metamask/superstruct" "^3.1.0"
-    "@noble/hashes" "^1.3.1"
-    "@scure/base" "^1.1.3"
-    "@types/debug" "^4.1.7"
-    debug "^4.3.4"
-    pony-cause "^2.1.10"
-    semver "^7.5.4"
-    uuid "^9.0.1"
-
 "@native-html/css-processor@1.11.0":
   version "1.11.0"
   resolved "https://registry.yarnpkg.com/@native-html/css-processor/-/css-processor-1.11.0.tgz#27d02e5123b0849f4986d44060ba3f235a15f552"
@@ -13737,7 +13686,7 @@ clone@^1.0.2:
 clone@^2.1.1, clone@^2.1.2:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/clone/-/clone-2.1.2.tgz#1b7f4b9f591f1e8f83670401600345a02887435f"
-  integrity sha1-G39Ln1kfHo+DZwQBYANFoCiHQ18=
+  integrity sha512-3Pe/CF1Nn94hyhIYpjtiLhdCoEoz0DqQ+988E9gmeEdQZlojxnOb74wctFyuwWQHzqyf9X7C7MG8juUpqBJT8w==
 
 clone@~0.1.9:
   version "0.1.19"