{"issuer":"https://poly.app/","service_documentation":"https://docs.poly.app/","authorization_endpoint":"https://poly.app/api/oauth/authorize","response_types_supported":["code"],"code_challenge_methods_supported":["S256"],"token_endpoint":"https://poly.app/api/oauth/token","token_endpoint_auth_methods_supported":["client_secret_post"],"grant_types_supported":["authorization_code","refresh_token"],"revocation_endpoint":"https://poly.app/api/oauth/revoke","revocation_endpoint_auth_methods_supported":["client_secret_post"],"registration_endpoint":"https://poly.app/api/oauth/register","scopes_supported":["all"]}