diff --git a/packages/client/src/actions/index.ts b/packages/client/src/actions/index.ts
index 666df1631..b2203d3ff 100644
--- a/packages/client/src/actions/index.ts
+++ b/packages/client/src/actions/index.ts
@@ -4,6 +4,7 @@ export * from './app';
 export * from './authentication';
 export * from './feed';
 export * from './follow';
+export * from './health';
 export * from './graph';
 export * from './namespace';
 export * from './group';
diff --git a/packages/client/src/actions/username.ts b/packages/client/src/actions/username.ts
index 3ec1b3b8c..78da131d1 100644
--- a/packages/client/src/actions/username.ts
+++ b/packages/client/src/actions/username.ts
@@ -1,11 +1,95 @@
-import type { Username, UsernameRequest, UsernamesRequest } from '@lens-protocol/graphql';
-import { UsernameQuery, UsernamesQuery } from '@lens-protocol/graphql';
+import type {
+  AssignUsernameToAccountRequest,
+  AssignUsernameToAccountResult,
+  CreateUsernameRequest,
+  CreateUsernameResult,
+  UnassignUsernameFromAccountRequest,
+  UnassignUsernameToAccountResult,
+  Username,
+  UsernameRequest,
+  UsernamesRequest,
+} from '@lens-protocol/graphql';
+import {
+  AssignUsernameToAccountMutation,
+  CreateUsernameMutation,
+  UnassignUsernameFromAccountMutation,
+  UsernameQuery,
+  UsernamesQuery,
+} from '@lens-protocol/graphql';
 import type { ResultAsync } from '@lens-protocol/types';
 
+import type { SessionClient } from '../clients';
+import type { UnauthenticatedError, UnexpectedError } from '../errors';
+
 import type { AnyClient } from '../clients';
-import type { UnexpectedError } from '../errors';
 import type { Paginated } from '../types';
 
+/**
+ * Create a username
+ *
+ * ```ts
+ * const result = await createUsername(sessionClient, {
+ *   username: {
+ *    localName: 'wagmi'
+ *   }
+ * });
+ * ```
+ *
+ * @param client - The session client for the authenticated Account.
+ * @param request - The mutation request.
+ * @returns Tiered transaction result.
+ */
+export function createUsername(
+  client: SessionClient,
+  request: CreateUsernameRequest,
+): ResultAsync<CreateUsernameResult, UnexpectedError | UnauthenticatedError> {
+  return client.mutation(CreateUsernameMutation, { request });
+}
+
+/**
+ * Assign a username to the account associated with the authenticated session.
+ *
+ * ```ts
+ * const result = await assignUsernameToAccount(sessionClient, {
+ *   username: {
+ *    localName: 'wagmi'
+ *   }
+ * });
+ * ```
+ *
+ * @param client - The session client for the authenticated Account.
+ * @param request - The mutation request.
+ * @returns Tiered transaction result.
+ */
+export function assignUsernameToAccount(
+  client: SessionClient,
+  request: AssignUsernameToAccountRequest,
+): ResultAsync<AssignUsernameToAccountResult, UnauthenticatedError | UnexpectedError> {
+  return client.mutation(AssignUsernameToAccountMutation, { request });
+}
+
+/**
+ * Unassign a username to the account associated with the authenticated session.
+ *
+ * ```ts
+ * const result = await unassignUsernameFromAccount(sessionClient, {
+ *   username: {
+ *    localName: 'wagmi'
+ *   }
+ * });
+ * ```
+ *
+ * @param client - The session client for the authenticated Account.
+ * @param request - The mutation request.
+ * @returns Tiered transaction result.
+ */
+export function unassignUsernameFromAccount(
+  client: SessionClient,
+  request: UnassignUsernameFromAccountRequest,
+): ResultAsync<UnassignUsernameToAccountResult, UnauthenticatedError | UnexpectedError> {
+  return client.query(UnassignUsernameFromAccountMutation, { request });
+}
+
 /**
  * Fetch username details.
  *
diff --git a/packages/graphql/src/username.ts b/packages/graphql/src/username.ts
index e5e57092a..2d0936f49 100644
--- a/packages/graphql/src/username.ts
+++ b/packages/graphql/src/username.ts
@@ -1,6 +1,141 @@
-import { PaginatedResultInfo, Username } from './fragments';
+import type { FragmentOf } from 'gql.tada';
+import {
+  PaginatedResultInfo,
+  SelfFundedTransactionRequest,
+  SponsoredTransactionRequest,
+  TransactionWillFail,
+  Username,
+} from './fragments';
 import { type RequestOf, graphql } from './graphql';
 
+const CreateUsernameResponse = graphql(
+  `fragment CreateUsernameResponse on CreateUsernameResponse {
+    __typename
+    hash
+  }`,
+);
+export type CreateUsernameResponse = FragmentOf<typeof CreateUsernameResponse>;
+
+const CreateUsernameResult = graphql(
+  `fragment CreateUsernameResult on CreateUsernameResult {
+    ...on CreateUsernameResponse {
+      ...CreateUsernameResponse
+    }
+    ...on SponsoredTransactionRequest {
+      ...SponsoredTransactionRequest
+    }
+    ...on SelfFundedTransactionRequest {
+      ...SelfFundedTransactionRequest
+    }
+    ...on TransactionWillFail {
+      ...TransactionWillFail
+    }
+  }`,
+  [
+    CreateUsernameResponse,
+    SelfFundedTransactionRequest,
+    TransactionWillFail,
+    SponsoredTransactionRequest,
+  ],
+);
+export type CreateUsernameResult = FragmentOf<typeof CreateUsernameResult>;
+
+export const CreateUsernameMutation = graphql(
+  `mutation CreateUsername($request: CreateUsernameRequest!) {
+    value: createUsername(request: $request) {
+      ...CreateUsernameResult
+    }
+  }`,
+  [CreateUsernameResult],
+);
+export type CreateUsernameRequest = RequestOf<typeof CreateUsernameMutation>;
+
+const AssignUsernameResponse = graphql(
+  `fragment AssignUsernameResponse on AssignUsernameResponse {
+    __typename
+    hash
+  }`,
+);
+export type AssignUsernameResponse = FragmentOf<typeof AssignUsernameResponse>;
+
+const AssignUsernameToAccountResult = graphql(
+  `fragment AssignUsernameToAccountResult on AssignUsernameToAccountResult {
+    ...on AssignUsernameResponse {
+      ...AssignUsernameResponse
+    }
+    ...on SponsoredTransactionRequest {
+      ...SponsoredTransactionRequest
+    }
+    ...on SelfFundedTransactionRequest {
+      ...SelfFundedTransactionRequest
+    }
+    ...on TransactionWillFail {
+      ...TransactionWillFail
+    }
+  }`,
+  [
+    SponsoredTransactionRequest,
+    SelfFundedTransactionRequest,
+    TransactionWillFail,
+    AssignUsernameResponse,
+  ],
+);
+export type AssignUsernameToAccountResult = FragmentOf<typeof AssignUsernameToAccountResult>;
+
+export const AssignUsernameToAccountMutation = graphql(
+  `mutation AssignUsernameToAccount($request: AssignUsernameToAccountRequest!) {
+    value: assignUsernameToAccount(request: $request) {
+      ...AssignUsernameToAccountResult
+    }
+  }`,
+  [AssignUsernameToAccountResult],
+);
+export type AssignUsernameToAccountRequest = RequestOf<typeof AssignUsernameToAccountMutation>;
+
+const UnassignUsernameResponse = graphql(
+  `fragment UnassignUsernameResponse on UnassignUsernameResponse {
+    __typename
+    hash
+  }`,
+);
+export type UnassignUsernameResponse = FragmentOf<typeof UnassignUsernameResponse>;
+
+const UnassignUsernameToAccountResult = graphql(
+  `fragment UnassignUsernameToAccountResult on UnassignUsernameToAccountResult {
+    ...on UnassignUsernameResponse {
+      ...UnassignUsernameResponse
+    }
+    ...on SponsoredTransactionRequest {
+      ...SponsoredTransactionRequest
+    }
+    ...on SelfFundedTransactionRequest {
+      ...SelfFundedTransactionRequest
+    }
+    ...on TransactionWillFail {
+      ...TransactionWillFail
+    }
+  }`,
+  [
+    SponsoredTransactionRequest,
+    SelfFundedTransactionRequest,
+    TransactionWillFail,
+    UnassignUsernameResponse,
+  ],
+);
+export type UnassignUsernameToAccountResult = FragmentOf<typeof UnassignUsernameToAccountResult>;
+
+export const UnassignUsernameFromAccountMutation = graphql(
+  `mutation LeaveGroup($request: UnassignUsernameFromAccountRequest!) {
+    value: unassignUsernameFromAccount(request: $request) {
+      ...UnassignUsernameToAccountResult
+    }
+  }`,
+  [UnassignUsernameToAccountResult],
+);
+export type UnassignUsernameFromAccountRequest = RequestOf<
+  typeof UnassignUsernameFromAccountMutation
+>;
+
 export const UsernameQuery = graphql(
   `query Username($request: UsernameRequest!) {
     value: username(request: $request) {