diff --git a/src/client/Mastodon.ts b/src/client/Mastodon.ts
index 81c2de7c7..f62c8a910 100644
--- a/src/client/Mastodon.ts
+++ b/src/client/Mastodon.ts
@@ -3,7 +3,7 @@ import { EventHandler } from './EventHandler';
 import { getNextUrl } from './linkHeader';
 import * as Options from './options';
 
-import { Account, AccountCredentials } from '../entities/Account';
+import { Account, AccountCredentials, AccountToken } from '../entities/Account';
 import { Application, OAuth } from '../entities/Application';
 import { Attachment } from '../entities/Attachment';
 import { Card } from '../entities/Card';
@@ -123,7 +123,7 @@ export class Mastodon extends Gateway {
    * @see https://docs.joinmastodon.org/api/authentication/
    */
   public async fetchAccessToken (code: string, client_id: string, client_secret: string, redirect_uri: string, grant_type = 'authorization_code') {
-    return (await this.post<{ access_token: string }>(`${this.url}/oauth/token`, { code, client_id, client_secret, redirect_uri, grant_type })).data;
+    return (await this.post<AccountToken>(`${this.url}/oauth/token`, { code, client_id, client_secret, redirect_uri, grant_type })).data;
   }
 
   /**
@@ -136,6 +136,15 @@ export class Mastodon extends Gateway {
     return (await this.get<Account>(`${this.url}/api/v1/accounts/${id}`)).data;
   }
 
+  /**
+   * Create an account
+   * @param options Data of the user to create
+   * @return Access token
+   */
+  public async createAccount (options: Options.CreateAccount) {
+    return (await this.post<AccountToken>(`${this.url}/api/v1/accounts`, options));
+  }
+
   /**
    * User’s own account.
    * @return Returns Account with an extra source attribute.
diff --git a/src/client/options.ts b/src/client/options.ts
index 9dcaba800..42329c8d2 100644
--- a/src/client/options.ts
+++ b/src/client/options.ts
@@ -152,3 +152,17 @@ export interface AddPushSubscription {
 }
 
 export type UpdatePushSubscription = Pick<AddPushSubscription, 'data'>;
+
+export interface CreateAccount {
+  /** Username to create */
+  username: string;
+
+  /** Password of the user */
+  password: string;
+
+  /** Email of the user */
+  email: string;
+
+  /** Whether the user has been agreed to the agreement of the Mastodon instance */
+  agreement: boolean;
+}
diff --git a/src/entities/Account.ts b/src/entities/Account.ts
index 64fe77f0f..bfcee277e 100644
--- a/src/entities/Account.ts
+++ b/src/entities/Account.ts
@@ -69,10 +69,10 @@ export interface AccountField {
 }
 
 export interface AccountCredentials extends Account {
-  source: AccountCredentialsSource;
+  source: AccountSource;
 }
 
-export interface AccountCredentialsSource {
+export interface AccountSource {
   /** Selected preference: Default privacy of new toots */
   privacy?: StatusVisibility | null;
 
@@ -89,3 +89,16 @@ export interface AccountCredentialsSource {
   fields: AccountField;
 }
 
+export interface AccountToken {
+  /** Access token of the account */
+  access_token: string;
+
+  /** Type of the token */
+  token_type: string;
+
+  /** Scope of the token */
+  scope: string;
+
+  /** Created date of the token */
+  created_at: string;
+}