# Check Username Availability URL: /api-reference/settings/checkUsernameAvailability Check if a username is taken. Returns `false` if the username is available, `true` if it is already taken. *** title: Check Username Availability description: >- Check if a username is taken. Returns `false` if the username is available, `true` if it is already taken. full: true \_openapi: method: POST route: /api/{account}/settings/username-exists toc: \[] structuredData: headings: \[] contents: * content: >- Check if a username is taken. Returns `false` if the username is available, `true` if it is already taken. *** {/* This file was generated by Fumadocs. Do not edit this file directly. Any changes should be made by running the generation command again. */}