{"issuer":"https://graphsheets.ai","authorization_endpoint":"https://graphsheets.ai/api/v1/oauth/authorize","token_endpoint":"https://graphsheets.ai/api/v1/oauth/token","registration_endpoint":"https://graphsheets.ai/api/v1/oauth/register","revocation_endpoint":"https://graphsheets.ai/api/v1/oauth/revoke","scopes_supported":["models:read","models:write","data:fetch","changes:approve"],"response_types_supported":["code"],"grant_types_supported":["authorization_code","refresh_token","client_credentials"],"code_challenge_methods_supported":["S256"],"client_id_metadata_document_supported":true,"authorization_response_iss_parameter_supported":true,"token_endpoint_auth_methods_supported":["none","client_secret_post","client_secret_basic"],"revocation_endpoint_auth_methods_supported":["none","client_secret_post","client_secret_basic"]}