diff --git a/tee-worker/identity/client-sdk/packages/client-sdk/CHANGELOG.md b/tee-worker/identity/client-sdk/packages/client-sdk/CHANGELOG.md
index e2db89cd2f..f03653f56f 100644
--- a/tee-worker/identity/client-sdk/packages/client-sdk/CHANGELOG.md
+++ b/tee-worker/identity/client-sdk/packages/client-sdk/CHANGELOG.md
@@ -8,6 +8,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 
 -   Add OmniAccount requestors for `createAccountStore`, `remark`, `transferNative`, `transferEthereum`, and `callEthereum`.
+-   Add `requestVerificationCode` requestor.
 
 ## 2024-10-14
 
diff --git a/tee-worker/identity/client-sdk/packages/client-sdk/package.json b/tee-worker/identity/client-sdk/packages/client-sdk/package.json
index 71c491f364..7b05eb3aae 100644
--- a/tee-worker/identity/client-sdk/packages/client-sdk/package.json
+++ b/tee-worker/identity/client-sdk/packages/client-sdk/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@litentry/client-sdk",
   "description": "This package provides helpers for dApps to interact with the Litentry Protocol.",
-  "version": "1.0.0-next.3",
+  "version": "1.0.0-next.4",
   "license": "GPL-3.0-or-later",
   "dependencies": {},
   "devDependencies": {
diff --git a/tee-worker/identity/client-sdk/packages/client-sdk/src/index.ts b/tee-worker/identity/client-sdk/packages/client-sdk/src/index.ts
index dc81833719..2861211cb1 100644
--- a/tee-worker/identity/client-sdk/packages/client-sdk/src/index.ts
+++ b/tee-worker/identity/client-sdk/packages/client-sdk/src/index.ts
@@ -12,6 +12,7 @@ export * from './lib/type-creators/litentry-identity';
 export * from './lib/type-creators/request';
 export * from './lib/type-creators/trusted-call';
 export * from './lib/type-creators/validation-data';
+export * from './lib/type-creators/tc-authentication';
 
 export type { IdGraph } from './lib/type-creators/id-graph';
 export { ID_GRAPH_STRUCT } from './lib/type-creators/id-graph';
diff --git a/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/requests/call-ethereum.request.ts b/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/requests/call-ethereum.request.ts
index aa045b9456..686991bbb0 100644
--- a/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/requests/call-ethereum.request.ts
+++ b/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/requests/call-ethereum.request.ts
@@ -18,6 +18,15 @@ import type { U8aLike } from '@polkadot/util/types';
 
 /**
  * OmniAccount: Call an Ethereum contract.
+ *
+ * @returns {Promise<Object>} - A promise that resolves to an object containing the payload to signature
+ * (if applicable) and a send function.
+ * @returns {string} [payloadToSign] - The payload to sign if who is not an email identity.
+ * @returns {Function} send - A function to send the request to the Enclave.
+ * @returns {Promise<Object>} send.args - The arguments required to send the request.
+ * @returns {string} send.args.authorization - The authentication string. If who is an
+ * email identity, this is the email verification code. If the who is not an email identity, this
+ * is the signed payload.
  */
 export async function callEthereum(
   /** Litentry Parachain API instance from Polkadot.js */
@@ -33,8 +42,8 @@ export async function callEthereum(
     input: U8aLike;
   }
 ): Promise<{
-  payloadToSign: string;
-  send: (args: { signedPayload: string }) => Promise<{
+  payloadToSign?: string;
+  send: (args: { authorization: string }) => Promise<{
     response: WorkerRpcReturnValue;
     blockHash: string;
     extrinsicHash: string;
@@ -62,15 +71,8 @@ export async function callEthereum(
 
   const nonce = await api.rpc.system.accountNextIndex(omniAccount.asSubstrate);
 
-  const payloadToSign = createPayloadToSign({
-    who,
-    call,
-    nonce,
-    shard: shardU8,
-  });
-
   const send = async (args: {
-    signedPayload: string;
+    authorization: string;
   }): Promise<{
     response: WorkerRpcReturnValue;
     blockHash: string;
@@ -80,7 +82,7 @@ export async function callEthereum(
 
     const request = await createRequestType(api, {
       signer: who,
-      signature: args.signedPayload,
+      signature: args.authorization,
       call,
       nonce,
       shard: shardU8,
@@ -113,6 +115,19 @@ export async function callEthereum(
     };
   };
 
+  if (who.isEmail) {
+    return {
+      send,
+    };
+  }
+
+  const payloadToSign = createPayloadToSign({
+    who,
+    call,
+    nonce,
+    shard: shardU8,
+  });
+
   return {
     payloadToSign,
     send,
diff --git a/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/requests/create-account-store.request.ts b/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/requests/create-account-store.request.ts
index ab997dbaab..8584888923 100644
--- a/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/requests/create-account-store.request.ts
+++ b/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/requests/create-account-store.request.ts
@@ -16,7 +16,15 @@ import { createRequestType } from '../type-creators/request';
 import type { JsonRpcRequest } from '../util/types';
 
 /**
- * OmniAccount: Create the OmniAccount for the given Identity
+ * Creates an account store on the Litentry Parachain.
+ *
+ * @returns {Promise<Object>} - A promise that resolves to an object containing the payload to sign (if applicable) and a send function.
+ * @returns {string} [payloadToSign] - The payload to sign if who is not an email identity.
+ * @returns {Function} send - A function to send the request to the Enclave.
+ * @returns {Promise<Object>} send.args - The arguments required to send the request.
+ * @returns {string} send.args.authentication - The authentication string. If who is
+ * an email identity, this is the email verification code. If the who is not an email identity, this is the
+ * signed payload.
  */
 export async function createAccountStore(
   /** Litentry Parachain API instance from Polkadot.js */
@@ -28,8 +36,8 @@ export async function createAccountStore(
     who: LitentryIdentity;
   }
 ): Promise<{
-  payloadToSign: string;
-  send: (args: { signedPayload: string }) => Promise<{
+  payloadToSign?: string;
+  send: (args: { authentication: string }) => Promise<{
     response: WorkerRpcReturnValue;
     blockHash: string;
     extrinsicHash: string;
@@ -51,15 +59,8 @@ export async function createAccountStore(
     omniAccount.asSubstrate.toHex()
   );
 
-  const payloadToSign = createPayloadToSign({
-    who,
-    call,
-    nonce,
-    shard: shardU8,
-  });
-
   const send = async (args: {
-    signedPayload: string;
+    authentication: string;
   }): Promise<{
     response: WorkerRpcReturnValue;
     blockHash: string;
@@ -69,7 +70,7 @@ export async function createAccountStore(
 
     const request = await createRequestType(api, {
       signer: who,
-      signature: args.signedPayload,
+      signature: args.authentication,
       call,
       nonce,
       shard: shardU8,
@@ -102,6 +103,17 @@ export async function createAccountStore(
     };
   };
 
+  if (who.isEmail) {
+    return { send };
+  }
+
+  const payloadToSign = createPayloadToSign({
+    who,
+    call,
+    nonce,
+    shard: shardU8,
+  });
+
   return {
     payloadToSign,
     send,
diff --git a/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/requests/index.ts b/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/requests/index.ts
index 3d08758f77..ef180cc077 100644
--- a/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/requests/index.ts
+++ b/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/requests/index.ts
@@ -11,3 +11,4 @@ export { createAccountStore } from './create-account-store.request';
 export { getIdGraph } from './get-id-graph.request';
 export { getIdGraphHash } from './get-id-graph-hash';
 export { getLastRegisteredEnclave } from './get-last-registered-enclave';
+export { requestVerificationCode } from './request-verification-code.request';
diff --git a/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/requests/remark.request.ts b/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/requests/remark.request.ts
index ef9807cc4e..f30b1b118e 100644
--- a/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/requests/remark.request.ts
+++ b/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/requests/remark.request.ts
@@ -16,7 +16,16 @@ import { createRequestType } from '../type-creators/request';
 import type { JsonRpcRequest } from '../util/types';
 
 /**
- * OmniAccount: Make a remark
+ * Sends a remark to the Litentry Parachain.
+ *
+ * @returns {Promise<Object>} - A promise that resolves to an object containing the payload to sign
+ * (if applicable) and a send function.
+ * @returns {string} [payloadToSign] - The payload to sign if who is not an email identity.
+ * @returns {Function} send - A function to send the request to the Enclave.
+ * @returns {Promise<Object>} send.args - The arguments required to send the request.
+ * @returns {string} send.args.authentication - The authentication string. If who is
+ * an email identity, this is the email verification code. If the who is not an email identity,
+ * this is the signed payload.
  */
 export async function remark(
   /** Litentry Parachain API instance from Polkadot.js */
@@ -30,8 +39,8 @@ export async function remark(
     message: string;
   }
 ): Promise<{
-  payloadToSign: string;
-  send: (args: { signedPayload: string }) => Promise<{
+  payloadToSign?: string;
+  send: (args: { authentication: string }) => Promise<{
     response: WorkerRpcReturnValue;
     blockHash: string;
     extrinsicHash: string;
@@ -58,15 +67,8 @@ export async function remark(
     omniAccount.asSubstrate.toHex()
   );
 
-  const payloadToSign = createPayloadToSign({
-    who,
-    call,
-    nonce,
-    shard: shardU8,
-  });
-
   const send = async (args: {
-    signedPayload: string;
+    authentication: string;
   }): Promise<{
     response: WorkerRpcReturnValue;
     blockHash: string;
@@ -76,7 +78,7 @@ export async function remark(
 
     const request = await createRequestType(api, {
       signer: who,
-      signature: args.signedPayload,
+      signature: args.authentication,
       call,
       nonce,
       shard: shardU8,
@@ -109,6 +111,17 @@ export async function remark(
     };
   };
 
+  if (who.isEmail) {
+    return { send };
+  }
+
+  const payloadToSign = createPayloadToSign({
+    who,
+    call,
+    nonce,
+    shard: shardU8,
+  });
+
   return {
     payloadToSign,
     send,
diff --git a/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/requests/request-verification-code.request.ts b/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/requests/request-verification-code.request.ts
new file mode 100644
index 0000000000..b259c9c0dc
--- /dev/null
+++ b/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/requests/request-verification-code.request.ts
@@ -0,0 +1,22 @@
+import { enclave } from '../enclave';
+
+import type { ApiPromise } from '@polkadot/api';
+import type { JsonRpcRequest } from '../util/types';
+
+/**
+ * Request email verification code.
+ */
+export async function requestVerificationCode(
+  api: ApiPromise,
+  { omniAccount, email }: { omniAccount: `0x${string}`; email: string }
+): Promise<{ success: boolean }> {
+  const payload: JsonRpcRequest = {
+    jsonrpc: '2.0',
+    method: 'omni_requestEmailVerificationCode',
+    params: [omniAccount, email],
+  };
+
+  const [workerResponse] = await enclave.send(api, payload);
+
+  return { success: workerResponse.status.isOk };
+}
diff --git a/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/requests/transfer-ethereum.request.ts b/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/requests/transfer-ethereum.request.ts
index 818fd4dd00..15218a1e73 100644
--- a/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/requests/transfer-ethereum.request.ts
+++ b/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/requests/transfer-ethereum.request.ts
@@ -16,7 +16,16 @@ import { createRequestType } from '../type-creators/request';
 import type { JsonRpcRequest } from '../util/types';
 
 /**
- * OmniAccount: Transfer funds to Ethereum Network.
+ * Transfers Ethereum to another account on the Litentry Parachain.
+ *
+ * @returns {Promise<Object>} - A promise that resolves to an object containing the payload to signature
+ * (if applicable) and a send function.
+ * @returns {string} [payloadToSign] - The payload to sign if who is not an email identity.
+ * @returns {Function} send - A function to send the request to the Enclave.
+ * @returns {Promise<Object>} send.args - The arguments required to send the request.
+ * @returns {string} send.args.authentication - The authentication string. If who is
+ * an email identity, this is the email verification code. If the who is not an email identity,
+ * this is the signed payload.
  */
 export async function transferEthereum(
   /** Litentry Parachain API instance from Polkadot.js */
@@ -32,8 +41,8 @@ export async function transferEthereum(
     amount: bigint;
   }
 ): Promise<{
-  payloadToSign: string;
-  send: (args: { signedPayload: string }) => Promise<{
+  payloadToSign?: string;
+  send: (args: { authentication: string }) => Promise<{
     response: WorkerRpcReturnValue;
     blockHash: string;
     extrinsicHash: string;
@@ -61,15 +70,8 @@ export async function transferEthereum(
 
   const nonce = await api.rpc.system.accountNextIndex(omniAccount.asSubstrate);
 
-  const payloadToSign = createPayloadToSign({
-    who,
-    call,
-    nonce,
-    shard: shardU8,
-  });
-
   const send = async (args: {
-    signedPayload: string;
+    authentication: string;
   }): Promise<{
     response: WorkerRpcReturnValue;
     blockHash: string;
@@ -79,7 +81,7 @@ export async function transferEthereum(
 
     const request = await createRequestType(api, {
       signer: who,
-      signature: args.signedPayload,
+      signature: args.authentication,
       call,
       nonce,
       shard: shardU8,
@@ -112,6 +114,17 @@ export async function transferEthereum(
     };
   };
 
+  if (who.isEmail) {
+    return { send };
+  }
+
+  const payloadToSign = createPayloadToSign({
+    who,
+    call,
+    nonce,
+    shard: shardU8,
+  });
+
   return {
     payloadToSign,
     send,
diff --git a/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/requests/transfer-native.request.ts b/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/requests/transfer-native.request.ts
index 52cfa8b22f..02cfdbe5e4 100644
--- a/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/requests/transfer-native.request.ts
+++ b/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/requests/transfer-native.request.ts
@@ -16,7 +16,16 @@ import { createRequestType } from '../type-creators/request';
 import type { JsonRpcRequest } from '../util/types';
 
 /**
- * OmniAccount: Transfer funds within the Litentry Network.
+ * Transfers native tokens to another account on the Litentry Parachain.
+ *
+ * @returns {Promise<Object>} - A promise that resolves to an object containing the payload to sign
+ * (if applicable) and a send function.
+ * @returns {string} [payloadToSign] - The payload to sign if who is not an email identity.
+ * @returns {Function} send - A function to send the request to the Enclave.
+ * @returns {Promise<Object>} send.args - The arguments required to send the request.
+ * @returns {string} send.args.authentication - The authentication string. If who is
+ * an email identity, this is the email verification code. If the who is not an email identity,
+ * this is the signed payload.
  */
 export async function transferNative(
   /** Litentry Parachain API instance from Polkadot.js */
@@ -32,8 +41,8 @@ export async function transferNative(
     amount: bigint;
   }
 ): Promise<{
-  payloadToSign: string;
-  send: (args: { signedPayload: string }) => Promise<{
+  payloadToSign?: string;
+  send: (args: { authentication: string }) => Promise<{
     response: WorkerRpcReturnValue;
     blockHash: string;
     extrinsicHash: string;
@@ -61,15 +70,8 @@ export async function transferNative(
 
   const nonce = await api.rpc.system.accountNextIndex(omniAccount.asSubstrate);
 
-  const payloadToSign = createPayloadToSign({
-    who,
-    call,
-    nonce,
-    shard: shardU8,
-  });
-
   const send = async (args: {
-    signedPayload: string;
+    authentication: string;
   }): Promise<{
     response: WorkerRpcReturnValue;
     blockHash: string;
@@ -79,7 +81,7 @@ export async function transferNative(
 
     const request = await createRequestType(api, {
       signer: who,
-      signature: args.signedPayload,
+      signature: args.authentication,
       call,
       nonce,
       shard: shardU8,
@@ -112,6 +114,17 @@ export async function transferNative(
     };
   };
 
+  if (who.isEmail) {
+    return { send };
+  }
+
+  const payloadToSign = createPayloadToSign({
+    who,
+    call,
+    nonce,
+    shard: shardU8,
+  });
+
   return {
     payloadToSign,
     send,
diff --git a/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/type-creators/tc-authentication.test.ts b/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/type-creators/tc-authentication.test.ts
new file mode 100644
index 0000000000..ef291030c4
--- /dev/null
+++ b/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/type-creators/tc-authentication.test.ts
@@ -0,0 +1,55 @@
+import { cryptoWaitReady } from '@polkadot/util-crypto';
+import { TypeRegistry } from '@polkadot/types';
+import { trusted_operations, identity } from '@litentry/parachain-api';
+import { createTCAuthenticationType } from './tc-authentication';
+import { createLitentryIdentityType } from './litentry-identity';
+import { createLitentryMultiSignature } from './litentry-multi-signature';
+
+describe('createTCAuthenticationType', () => {
+  const types = {
+    ...trusted_operations.types,
+    ...identity.types,
+  };
+  let registry: TypeRegistry;
+
+  beforeAll(async () => {
+    await cryptoWaitReady();
+
+    registry = new TypeRegistry();
+    registry.register(types);
+  });
+
+  it('creates Email authentication', () => {
+    const emailTCAuthentication = createTCAuthenticationType(registry, {
+      type: 'Email',
+      verificationCode: '123456',
+    });
+
+    expect(emailTCAuthentication).toBeDefined();
+    expect(emailTCAuthentication.isEmail).toEqual(true);
+    expect(emailTCAuthentication.asEmail.toHuman()).toEqual('123456');
+  });
+
+  it('creates Web3 authentication', () => {
+    const who = createLitentryIdentityType(registry, {
+      type: 'Substrate',
+      addressOrHandle: '5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY',
+    });
+    const signatureString = '0x' + '12'.repeat(64);
+    const signature = createLitentryMultiSignature(registry, {
+      who,
+      signature: signatureString,
+    });
+
+    const web3TCAuthentication = createTCAuthenticationType(registry, {
+      type: 'Web3',
+      signature: signature.toHex(),
+    });
+
+    expect(web3TCAuthentication).toBeDefined();
+    expect(web3TCAuthentication.isWeb3).toEqual(true);
+    expect(web3TCAuthentication.asWeb3.toHuman()).toEqual({
+      Sr25519: signatureString,
+    });
+  });
+});
diff --git a/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/type-creators/tc-authentication.ts b/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/type-creators/tc-authentication.ts
new file mode 100644
index 0000000000..2fbfe9d646
--- /dev/null
+++ b/tee-worker/identity/client-sdk/packages/client-sdk/src/lib/type-creators/tc-authentication.ts
@@ -0,0 +1,21 @@
+import { TCAuthentication } from '@litentry/parachain-api';
+import { Registry } from '@polkadot/types-codec/types';
+
+type AuthenticationData =
+  | {
+      type: 'Email';
+      verificationCode: string;
+    }
+  | {
+      type: 'Web3';
+      signature: string;
+    };
+
+export function createTCAuthenticationType(
+  registry: Registry,
+  data: AuthenticationData
+): TCAuthentication {
+  return registry.createType('TCAuthentication', {
+    [data.type]: data.type === 'Email' ? data.verificationCode : data.signature,
+  });
+}