{"authorization_endpoint":"https://xposterai.com/oauth/authorize","code_challenge_methods_supported":["S256"],"grant_types_supported":["authorization_code","refresh_token"],"issuer":"https://xposterai.com","registration_endpoint":"https://xposterai.com/oauth/register","response_types_supported":["code"],"revocation_endpoint":"https://xposterai.com/oauth/revoke","revocation_endpoint_auth_methods_supported":["none","client_secret_post"],"scopes_supported":["accounts:read","posts:read","posts:write","voice:write","radar:read"],"token_endpoint":"https://xposterai.com/oauth/token","token_endpoint_auth_methods_supported":["none","client_secret_post"]}