diff --git a/README.md b/README.md
index 402d3d5f..14341657 100644
--- a/README.md
+++ b/README.md
@@ -33,7 +33,7 @@ describe('bank', () => {
     // get account info
     const account = await rest.cosmos.auth
       .account(sdk, fromAddress)
-      .then((res) => res.data.account && cosmosclient.codec.unpackAny(res.data.account))
+      .then((res) => res.data.account && cosmosclient.codec.unpackCosmosAny(res.data.account))
       .catch((_) => undefined);
 
     if (!(account instanceof cosmos.auth.v1beta1.BaseAccount)) {
diff --git a/package-lock.json b/package-lock.json
index abbbc129..fac38a58 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "cosmos-client",
-  "version": "0.42.10",
+  "version": "0.42.11",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "cosmos-client",
-      "version": "0.42.10",
+      "version": "0.42.11",
       "license": "ISC",
       "dependencies": {
         "axios": "^0.21.1",
diff --git a/package.json b/package.json
index 1ef4251b..81dd0a76 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "cosmos-client",
   "description": "REST API Client for Cosmos SDK Blockchain",
-  "version": "0.42.10",
+  "version": "0.42.11",
   "author": "LCNEM, Inc.",
   "bugs": {
     "url": "https://github.com/cosmos-client/cosmos-client-ts/issues"
diff --git a/src/rest/cosmos/bank/bank.spec.ts b/src/rest/cosmos/bank/bank.spec.ts
index 86634bf3..665279e4 100644
--- a/src/rest/cosmos/bank/bank.spec.ts
+++ b/src/rest/cosmos/bank/bank.spec.ts
@@ -20,7 +20,7 @@ describe('bank', () => {
     // get account info
     const account = await rest.cosmos.auth
       .account(sdk, fromAddress)
-      .then((res) => res.data.account && cosmosclient.codec.unpackAny(res.data.account))
+      .then((res) => res.data.account && cosmosclient.codec.unpackCosmosAny(res.data.account))
       .catch((_) => undefined);
 
     if (!(account instanceof cosmos.auth.v1beta1.BaseAccount)) {
diff --git a/src/types/codec/codec.spec.ts b/src/types/codec/codec.spec.ts
new file mode 100644
index 00000000..59045366
--- /dev/null
+++ b/src/types/codec/codec.spec.ts
@@ -0,0 +1,72 @@
+import { codec } from '.';
+import { cosmos } from '../../proto';
+import '../..';
+
+describe('codec', () => {
+  it('unpack', () => {
+    expect.hasAssertions();
+    const res = {
+      data: {
+        account: {
+          '@type': '/cosmos.auth.v1beta1.BaseAccount',
+          address: 'jpyx10lcj22kzftvnduchatmnsnhfljeky5ghd398wt',
+          pub_key: { '@type': '/cosmos.crypto.secp256k1.PubKey', key: 'AvSf2U/B23UZKvLTD0E4xqJ33Nn0Z552nXCkkwEfleiu' },
+          account_number: '0',
+          sequence: '13',
+        },
+      },
+      status: 200,
+      statusText: 'OK',
+      headers: { 'content-length': '315', 'content-type': 'application/json' },
+      config: {
+        url: 'http://a.test.jpyx.lcnem.net:1317/cosmos/auth/v1beta1/accounts/jpyx10lcj22kzftvnduchatmnsnhfljeky5ghd398wt',
+        method: 'get',
+        headers: { Accept: 'application/json, text/plain, */*' },
+        transformRequest: [null],
+        transformResponse: [null],
+        timeout: 0,
+        xsrfCookieName: 'XSRF-TOKEN',
+        xsrfHeaderName: 'X-XSRF-TOKEN',
+        maxContentLength: -1,
+        maxBodyLength: -1,
+      },
+      request: {
+        __zone_symbol__xhrSync: false,
+        __zone_symbol__xhrURL: 'http://a.test.jpyx.lcnem.net:1317/cosmos/auth/v1beta1/accounts/jpyx10lcj22kzftvnduchatmnsnhfljeky5ghd398wt',
+        __zone_symbol__readystatechangefalse: [
+          {
+            type: 'eventTask',
+            state: 'scheduled',
+            source: 'XMLHttpRequest.addEventListener:readystatechange',
+            zone: 'angular',
+            runCount: 6,
+          },
+        ],
+        __zone_symbol__abortfalse: [
+          { type: 'eventTask', state: 'scheduled', source: 'XMLHttpRequest.addEventListener:abort', zone: 'angular', runCount: 0 },
+        ],
+        __zone_symbol__errorfalse: [
+          { type: 'eventTask', state: 'scheduled', source: 'XMLHttpRequest.addEventListener:error', zone: 'angular', runCount: 0 },
+        ],
+        __zone_symbol__timeoutfalse: [
+          { type: 'eventTask', state: 'scheduled', source: 'XMLHttpRequest.addEventListener:timeout', zone: 'angular', runCount: 0 },
+        ],
+        __zone_symbol__xhrScheduled: true,
+        __zone_symbol__xhrErrorBeforeScheduled: false,
+        __zone_symbol__xhrTask: { type: 'macroTask', state: 'notScheduled', source: 'XMLHttpRequest.send', zone: 'angular', runCount: 0 },
+      },
+    };
+
+    const unpacked = codec.unpackCosmosAny(res.data.account);
+    if (!(unpacked instanceof cosmos.auth.v1beta1.BaseAccount)) {
+      throw Error('');
+    }
+
+    console.log(unpacked);
+
+    const key = codec.unpackAny(unpacked.pub_key);
+    console.log(key)
+
+    expect(true).toBeTruthy();
+  });
+});
diff --git a/src/types/codec/config.ts b/src/types/codec/config.ts
index 89762311..0af2d513 100644
--- a/src/types/codec/config.ts
+++ b/src/types/codec/config.ts
@@ -1,4 +1,8 @@
+import * as $protobuf from 'protobufjs';
+
 export const codecMaps = {
   inv: new Map<Function, string>(),
+  encode: {} as { [type: string]: (value: any) => $protobuf.Writer },
+  decode: {} as { [type: string]: (value: Uint8Array) => unknown },
   fromObject: {} as { [type: string]: (value: any) => unknown },
 };
diff --git a/src/types/codec/module.ts b/src/types/codec/module.ts
index be9b8585..723fa6c3 100644
--- a/src/types/codec/module.ts
+++ b/src/types/codec/module.ts
@@ -1,25 +1,83 @@
 import { config } from '../../config';
 import { google } from '../../proto';
+import * as $protobuf from 'protobufjs';
 
-export function register(type: string, constructor: Function & { fromObject(object: any): any }) {
+export function register(
+  type: string,
+  constructor: Function & { encode(value: any): $protobuf.Writer; decode(value: Uint8Array): unknown; fromObject(object: any): any },
+) {
   config.codecMaps.inv.set(constructor, type);
+  config.codecMaps.encode[type] = constructor.encode;
+  config.codecMaps.decode[type] = constructor.decode;
   config.codecMaps.fromObject[type] = constructor.fromObject;
 }
 
-export function unpackAny(value: any) {
+/**
+ * CosmosAny -> Instance
+ * @param value 
+ * @returns 
+ */
+export function unpackCosmosAny(value: any): unknown {
+  const newValue: { [key: string]: any } = {};
+
+  for (const key in value) {
+    newValue[key] = packCosmosAny(value[key]);
+  }
+
   const typeURL = value && value['@type'];
 
-  if (!typeURL) {
-    throw Error("The field '@type' is undefined");
+  if (!typeURL || !config.codecMaps.fromObject[typeURL]) {
+    return newValue;
   }
 
-  if (!config.codecMaps.fromObject[typeURL]) {
-    throw Error('This type is not registered');
+  return config.codecMaps.fromObject[typeURL](newValue);
+}
+
+/**
+ * CosmosAny -> Any
+ * @param value 
+ */
+export function packCosmosAny(value: any) {
+  const typeURL = value && value['@type'];
+
+  if (!typeURL || !config.codecMaps.fromObject[typeURL]) {
+    return value;
   }
 
-  return config.codecMaps.fromObject[typeURL](value);
+  const newValue: { [key: string]: any } = {};
+
+  for (const key in value) {
+    newValue[key] = packCosmosAny(value[key]);
+  }
+
+  return new google.protobuf.Any({
+    type_url: typeURL,
+    value: config.codecMaps.encode[typeURL](config.codecMaps.fromObject[typeURL](newValue)).finish(),
+  });
+}
+
+/**
+ * Any -> Instance
+ * @param value 
+ */
+export function unpackAny(value?: google.protobuf.IAny | null) {
+  if (!value) {
+    throw Error("Object 'value' is undefined");
+  }
+  if (!value.type_url) {
+    throw Error("The field 'type_url' is undefined");
+  }
+  if (!value.value) {
+    throw Error("The field 'value' is undefined");
+  }
+  return config.codecMaps.decode[value.type_url](value.value);
 }
 
+/**
+ * Instance -> Any
+ * @param value 
+ * @returns 
+ */
 export function packAny(value: any) {
   const constructor = value?.constructor;