diff --git a/src/common/lib/client/baseclient.ts b/src/common/lib/client/baseclient.ts
index 27d375cb1c..8d8b201036 100644
--- a/src/common/lib/client/baseclient.ts
+++ b/src/common/lib/client/baseclient.ts
@@ -30,6 +30,7 @@ class BaseClient {
 
   private readonly _rest: Rest | null;
   readonly _Crypto: IUntypedCryptoStatic | null;
+  readonly _MsgPack = Platform.Config.msgpack;
 
   constructor(options: ClientOptions | string, modules: ModulesMap) {
     if (!options) {
diff --git a/src/common/lib/client/channel.ts b/src/common/lib/client/channel.ts
index 370c32993e..ad4be4b767 100644
--- a/src/common/lib/client/channel.ts
+++ b/src/common/lib/client/channel.ts
@@ -99,7 +99,7 @@ class Channel extends EventEmitter {
       headers: Record<string, string>,
       unpacked?: boolean
     ) {
-      return await Message.fromResponseBody(body, options, unpacked ? undefined : format);
+      return await Message.fromResponseBody(body, options, client._MsgPack, unpacked ? undefined : format);
     }).get(params as Record<string, unknown>, callback);
   }
 
@@ -177,7 +177,7 @@ class Channel extends EventEmitter {
         return;
       }
 
-      this._publish(Message.serialize(messages, format), headers, params, callback);
+      this._publish(Message.serialize(messages, client._MsgPack, format), headers, params, callback);
     });
   }
 
diff --git a/src/common/lib/client/presence.ts b/src/common/lib/client/presence.ts
index ea64ad3cd7..ac756ef9b8 100644
--- a/src/common/lib/client/presence.ts
+++ b/src/common/lib/client/presence.ts
@@ -43,7 +43,12 @@ class Presence extends EventEmitter {
       headers: Record<string, string>,
       unpacked?: boolean
     ) {
-      return await PresenceMessage.fromResponseBody(body, options as CipherOptions, unpacked ? undefined : format);
+      return await PresenceMessage.fromResponseBody(
+        body,
+        options as CipherOptions,
+        client._MsgPack,
+        unpacked ? undefined : format
+      );
     }).get(params, callback);
   }
 
@@ -82,7 +87,12 @@ class Presence extends EventEmitter {
       headers: Record<string, string>,
       unpacked?: boolean
     ) {
-      return await PresenceMessage.fromResponseBody(body, options as CipherOptions, unpacked ? undefined : format);
+      return await PresenceMessage.fromResponseBody(
+        body,
+        options as CipherOptions,
+        client._MsgPack,
+        unpacked ? undefined : format
+      );
     }).get(params, callback);
   }
 }
diff --git a/src/common/lib/client/push.ts b/src/common/lib/client/push.ts
index 2cf3e01d19..33054fbd0c 100644
--- a/src/common/lib/client/push.ts
+++ b/src/common/lib/client/push.ts
@@ -44,7 +44,7 @@ class Admin {
 
     if (client.options.pushFullWait) Utils.mixin(params, { fullWait: 'true' });
 
-    const requestBody = Utils.encodeBody(body, format);
+    const requestBody = Utils.encodeBody(body, client._MsgPack, format);
     Resource.post(client, '/push/publish', requestBody, headers, params, null, (err) => callback(err));
   }
 }
@@ -71,7 +71,7 @@ class DeviceRegistrations {
 
     if (client.options.pushFullWait) Utils.mixin(params, { fullWait: 'true' });
 
-    const requestBody = Utils.encodeBody(body, format);
+    const requestBody = Utils.encodeBody(body, client._MsgPack, format);
     Resource.put(
       client,
       '/push/deviceRegistrations/' + encodeURIComponent(device.id),
@@ -85,6 +85,7 @@ class DeviceRegistrations {
           !err
             ? (DeviceDetails.fromResponseBody(
                 body as Record<string, unknown>,
+                client._MsgPack,
                 unpacked ? undefined : format
               ) as DeviceDetails)
             : undefined
@@ -128,6 +129,7 @@ class DeviceRegistrations {
           !err
             ? (DeviceDetails.fromResponseBody(
                 body as Record<string, unknown>,
+                client._MsgPack,
                 unpacked ? undefined : format
               ) as DeviceDetails)
             : undefined
@@ -153,7 +155,7 @@ class DeviceRegistrations {
       headers: Record<string, string>,
       unpacked?: boolean
     ) {
-      return DeviceDetails.fromResponseBody(body, unpacked ? undefined : format);
+      return DeviceDetails.fromResponseBody(body, client._MsgPack, unpacked ? undefined : format);
     }).get(params, callback);
   }
 
@@ -232,7 +234,7 @@ class ChannelSubscriptions {
 
     if (client.options.pushFullWait) Utils.mixin(params, { fullWait: 'true' });
 
-    const requestBody = Utils.encodeBody(body, format);
+    const requestBody = Utils.encodeBody(body, client._MsgPack, format);
     Resource.post(
       client,
       '/push/channelSubscriptions',
@@ -243,7 +245,12 @@ class ChannelSubscriptions {
       function (err, body, headers, unpacked) {
         callback(
           err,
-          !err && PushChannelSubscription.fromResponseBody(body as Record<string, any>, unpacked ? undefined : format)
+          !err &&
+            PushChannelSubscription.fromResponseBody(
+              body as Record<string, any>,
+              client._MsgPack,
+              unpacked ? undefined : format
+            )
         );
       }
     );
@@ -266,7 +273,7 @@ class ChannelSubscriptions {
       headers: Record<string, string>,
       unpacked?: boolean
     ) {
-      return PushChannelSubscription.fromResponseBody(body, unpacked ? undefined : format);
+      return PushChannelSubscription.fromResponseBody(body, client._MsgPack, unpacked ? undefined : format);
     }).get(params, callback);
   }
 
@@ -308,7 +315,9 @@ class ChannelSubscriptions {
       headers: Record<string, string>,
       unpacked?: boolean
     ) {
-      const parsedBody = (!unpacked && format ? Utils.decodeBody(body, format) : body) as Array<string>;
+      const parsedBody = (
+        !unpacked && format ? Utils.decodeBody(body, client._MsgPack, format) : body
+      ) as Array<string>;
 
       for (let i = 0; i < parsedBody.length; i++) {
         parsedBody[i] = String(parsedBody[i]);
diff --git a/src/common/lib/client/resource.ts b/src/common/lib/client/resource.ts
index 125069f214..8a1b855369 100644
--- a/src/common/lib/client/resource.ts
+++ b/src/common/lib/client/resource.ts
@@ -6,6 +6,7 @@ import HttpMethods from '../../constants/HttpMethods';
 import ErrorInfo, { IPartialErrorInfo, PartialErrorInfo } from '../types/errorinfo';
 import BaseClient from './baseclient';
 import { ErrnoException } from '../../types/http';
+import { MsgPack } from 'common/types/msgpack';
 
 function withAuthDetails(
   client: BaseClient,
@@ -27,7 +28,11 @@ function withAuthDetails(
   }
 }
 
-function unenvelope<T>(callback: ResourceCallback<T>, format: Utils.Format | null): ResourceCallback<T> {
+function unenvelope<T>(
+  callback: ResourceCallback<T>,
+  MsgPack: MsgPack,
+  format: Utils.Format | null
+): ResourceCallback<T> {
   return (err, body, outerHeaders, unpacked, outerStatusCode) => {
     if (err && !body) {
       callback(err);
@@ -36,7 +41,7 @@ function unenvelope<T>(callback: ResourceCallback<T>, format: Utils.Format | nul
 
     if (!unpacked) {
       try {
-        body = Utils.decodeBody(body, format);
+        body = Utils.decodeBody(body, MsgPack, format);
       } catch (e) {
         if (Utils.isErrorInfoOrPartialErrorInfo(e)) {
           callback(e);
@@ -204,7 +209,7 @@ class Resource {
     }
 
     if (envelope) {
-      callback = callback && unenvelope(callback, envelope);
+      callback = callback && unenvelope(callback, client._MsgPack, envelope);
       (params = params || {})['envelope'] = envelope;
     }
 
@@ -221,7 +226,7 @@ class Resource {
         let decodedBody = body;
         if (headers['content-type']?.indexOf('msgpack') > 0) {
           try {
-            decodedBody = Platform.Config.msgpack.decode(body as Buffer);
+            decodedBody = client._MsgPack.decode(body as Buffer);
           } catch (decodeErr) {
             Logger.logAction(
               Logger.LOG_MICRO,
diff --git a/src/common/lib/client/rest.ts b/src/common/lib/client/rest.ts
index 505bc05edc..b4ab2e3124 100644
--- a/src/common/lib/client/rest.ts
+++ b/src/common/lib/client/rest.ts
@@ -114,8 +114,8 @@ export class Rest {
     callback: StandardCallback<HttpPaginatedResponse<unknown>>
   ): Promise<HttpPaginatedResponse<unknown>> | void {
     const useBinary = this.client.options.useBinaryProtocol,
-      encoder = useBinary ? Platform.Config.msgpack.encode : JSON.stringify,
-      decoder = useBinary ? Platform.Config.msgpack.decode : JSON.parse,
+      encoder = useBinary ? this.client._MsgPack.encode : JSON.stringify,
+      decoder = useBinary ? this.client._MsgPack.decode : JSON.parse,
       format = useBinary ? Utils.Format.msgpack : Utils.Format.json,
       envelope = this.client.http.supportsLinkHeaders ? undefined : format;
     params = params || {};
diff --git a/src/common/lib/transport/websockettransport.ts b/src/common/lib/transport/websockettransport.ts
index fc12dddf27..b352d68f48 100644
--- a/src/common/lib/transport/websockettransport.ts
+++ b/src/common/lib/transport/websockettransport.ts
@@ -102,7 +102,9 @@ class WebSocketTransport extends Transport {
       return;
     }
     try {
-      wsConnection.send(ProtocolMessage.serialize(message, this.params.format));
+      wsConnection.send(
+        ProtocolMessage.serialize(message, this.connectionManager.realtime._MsgPack, this.params.format)
+      );
     } catch (e) {
       const msg = 'Exception from ws connection when trying to send: ' + Utils.inspectError(e);
       Logger.logAction(Logger.LOG_ERROR, 'WebSocketTransport.send()', msg);
@@ -119,7 +121,7 @@ class WebSocketTransport extends Transport {
       'data received; length = ' + data.length + '; type = ' + typeof data
     );
     try {
-      this.onProtocolMessage(ProtocolMessage.deserialize(data, this.format));
+      this.onProtocolMessage(ProtocolMessage.deserialize(data, this.connectionManager.realtime._MsgPack, this.format));
     } catch (e) {
       Logger.logAction(
         Logger.LOG_ERROR,
diff --git a/src/common/lib/types/devicedetails.ts b/src/common/lib/types/devicedetails.ts
index 59cc80b514..a8ba6c953c 100644
--- a/src/common/lib/types/devicedetails.ts
+++ b/src/common/lib/types/devicedetails.ts
@@ -1,3 +1,4 @@
+import { MsgPack } from 'common/types/msgpack';
 import * as Utils from '../util/utils';
 import ErrorInfo, { IConvertibleToErrorInfo } from './errorinfo';
 
@@ -74,10 +75,11 @@ class DeviceDetails {
 
   static fromResponseBody(
     body: Array<Record<string, unknown>> | Record<string, unknown>,
+    MsgPack: MsgPack,
     format?: Utils.Format
   ): DeviceDetails | DeviceDetails[] {
     if (format) {
-      body = Utils.decodeBody(body, format);
+      body = Utils.decodeBody(body, MsgPack, format);
     }
 
     if (Utils.isArray(body)) {
diff --git a/src/common/lib/types/message.ts b/src/common/lib/types/message.ts
index 692c5e069f..7a994d867d 100644
--- a/src/common/lib/types/message.ts
+++ b/src/common/lib/types/message.ts
@@ -7,6 +7,7 @@ import * as Utils from '../util/utils';
 import { Bufferlike as BrowserBufferlike } from '../../../platform/web/lib/util/bufferutils';
 import * as API from '../../../../ably';
 import { IUntypedCryptoStatic } from 'common/types/ICryptoStatic';
+import { MsgPack } from 'common/types/msgpack';
 
 export type CipherOptions = {
   channelCipher: {
@@ -335,10 +336,11 @@ class Message {
   static async fromResponseBody(
     body: Array<Message>,
     options: ChannelOptions | EncodingDecodingContext,
+    MsgPack: MsgPack,
     format?: Utils.Format
   ): Promise<Message[]> {
     if (format) {
-      body = Utils.decodeBody(body, format);
+      body = Utils.decodeBody(body, MsgPack, format);
     }
 
     for (let i = 0; i < body.length; i++) {
diff --git a/src/common/lib/types/presencemessage.ts b/src/common/lib/types/presencemessage.ts
index de2abfa256..01e9e2f786 100644
--- a/src/common/lib/types/presencemessage.ts
+++ b/src/common/lib/types/presencemessage.ts
@@ -3,6 +3,7 @@ import Platform from 'common/platform';
 import Message, { CipherOptions } from './message';
 import * as Utils from '../util/utils';
 import * as API from '../../../../ably';
+import { MsgPack } from 'common/types/msgpack';
 
 function toActionValue(actionString: string) {
   return PresenceMessage.Actions.indexOf(actionString);
@@ -105,11 +106,12 @@ class PresenceMessage {
   static async fromResponseBody(
     body: Record<string, unknown>[],
     options: CipherOptions,
+    MsgPack: MsgPack,
     format?: Utils.Format
   ): Promise<PresenceMessage[]> {
     const messages: PresenceMessage[] = [];
     if (format) {
-      body = Utils.decodeBody(body, format);
+      body = Utils.decodeBody(body, MsgPack, format);
     }
 
     for (let i = 0; i < body.length; i++) {
diff --git a/src/common/lib/types/protocolmessage.ts b/src/common/lib/types/protocolmessage.ts
index 20acbdf380..46641b5c1c 100644
--- a/src/common/lib/types/protocolmessage.ts
+++ b/src/common/lib/types/protocolmessage.ts
@@ -1,3 +1,4 @@
+import { MsgPack } from 'common/types/msgpack';
 import { Types } from '../../../../ably';
 import * as Utils from '../util/utils';
 import ErrorInfo from './errorinfo';
@@ -109,8 +110,8 @@ class ProtocolMessage {
 
   static serialize = Utils.encodeBody;
 
-  static deserialize = function (serialized: unknown, format?: Utils.Format): ProtocolMessage {
-    const deserialized = Utils.decodeBody<Record<string, unknown>>(serialized, format);
+  static deserialize = function (serialized: unknown, MsgPack: MsgPack, format?: Utils.Format): ProtocolMessage {
+    const deserialized = Utils.decodeBody<Record<string, unknown>>(serialized, MsgPack, format);
     return ProtocolMessage.fromDeserialized(deserialized);
   };
 
diff --git a/src/common/lib/types/pushchannelsubscription.ts b/src/common/lib/types/pushchannelsubscription.ts
index b4056c006c..16a150b1d6 100644
--- a/src/common/lib/types/pushchannelsubscription.ts
+++ b/src/common/lib/types/pushchannelsubscription.ts
@@ -1,3 +1,4 @@
+import { MsgPack } from 'common/types/msgpack';
 import * as Utils from '../util/utils';
 
 type PushChannelSubscriptionObject = {
@@ -36,10 +37,11 @@ class PushChannelSubscription {
 
   static fromResponseBody(
     body: Array<Record<string, unknown>> | Record<string, unknown>,
+    MsgPack: MsgPack,
     format?: Utils.Format
   ): PushChannelSubscription | PushChannelSubscription[] {
     if (format) {
-      body = Utils.decodeBody(body, format) as Record<string, unknown>;
+      body = Utils.decodeBody(body, MsgPack, format) as Record<string, unknown>;
     }
 
     if (Utils.isArray(body)) {
diff --git a/src/common/lib/util/utils.ts b/src/common/lib/util/utils.ts
index 280a27cb1c..b5d9181e7e 100644
--- a/src/common/lib/util/utils.ts
+++ b/src/common/lib/util/utils.ts
@@ -1,5 +1,6 @@
 import Platform from 'common/platform';
 import ErrorInfo, { PartialErrorInfo } from 'common/lib/types/errorinfo';
+import { MsgPack } from 'common/types/msgpack';
 
 function randomPosn(arrOrStr: Array<unknown> | string) {
   return Math.floor(Math.random() * arrOrStr.length);
@@ -450,12 +451,12 @@ export function promisify<T>(ob: Record<string, any>, fnName: string, args: IArg
   });
 }
 
-export function decodeBody<T>(body: unknown, format?: Format | null): T {
-  return format == 'msgpack' ? Platform.Config.msgpack.decode(body as Buffer) : JSON.parse(String(body));
+export function decodeBody<T>(body: unknown, MsgPack: MsgPack, format?: Format | null): T {
+  return format == 'msgpack' ? MsgPack.decode(body as Buffer) : JSON.parse(String(body));
 }
 
-export function encodeBody(body: unknown, format?: Format): string | Buffer {
-  return format == 'msgpack' ? (Platform.Config.msgpack.encode(body, true) as Buffer) : JSON.stringify(body);
+export function encodeBody(body: unknown, MsgPack: MsgPack, format?: Format): string | Buffer {
+  return format == 'msgpack' ? (MsgPack.encode(body, true) as Buffer) : JSON.stringify(body);
 }
 
 export function allToLowerCase(arr: Array<string>): Array<string> {
diff --git a/src/platform/nodejs/lib/util/http.ts b/src/platform/nodejs/lib/util/http.ts
index 645d50435f..ff5b2868e9 100644
--- a/src/platform/nodejs/lib/util/http.ts
+++ b/src/platform/nodejs/lib/util/http.ts
@@ -28,7 +28,7 @@ import { shallowEquals } from 'common/lib/util/utils';
 
 const globalAgentPool: Array<{ options: RestAgentOptions; agents: Agents }> = [];
 
-const handler = function (uri: string, params: unknown, callback?: RequestCallback) {
+const handler = function (uri: string, params: unknown, client: BaseClient | null, callback?: RequestCallback) {
   return function (err: ErrnoException | null, response?: Response, body?: unknown) {
     if (err) {
       callback?.(err);
@@ -42,7 +42,10 @@ const handler = function (uri: string, params: unknown, callback?: RequestCallba
           body = JSON.parse(body as string);
           break;
         case 'application/x-msgpack':
-          body = Platform.Config.msgpack.decode(body as Buffer);
+          if (!client) {
+            throw new ErrorInfo('Cannot use MessagePack without a client', 400, 40000);
+          }
+          body = client._MsgPack.decode(body as Buffer);
       }
       const error = (body as { error: ErrorInfo }).error
         ? ErrorInfo.fromValues((body as { error: ErrorInfo }).error)
@@ -230,14 +233,14 @@ const Http: typeof IHttp = class {
 
     (got[method](doOptions) as CancelableRequest<Response>)
       .then((res: Response) => {
-        handler(uri, params, callback)(null, res, res.body);
+        handler(uri, params, client, callback)(null, res, res.body);
       })
       .catch((err: ErrnoException) => {
         if (err instanceof got.HTTPError) {
-          handler(uri, params, callback)(null, err.response, err.response.body);
+          handler(uri, params, client, callback)(null, err.response, err.response.body);
           return;
         }
-        handler(uri, params, callback)(err);
+        handler(uri, params, client, callback)(err);
       });
   }