{"issuer":"https://mcp.agentcard.sh/","service_documentation":"https://agentcard.sh/","authorization_endpoint":"https://mcp.agentcard.sh/authorize","response_types_supported":["code"],"code_challenge_methods_supported":["S256"],"token_endpoint":"https://mcp.agentcard.sh/token","token_endpoint_auth_methods_supported":["client_secret_post","none"],"grant_types_supported":["authorization_code","refresh_token"],"revocation_endpoint":"https://mcp.agentcard.sh/revoke","revocation_endpoint_auth_methods_supported":["client_secret_post"],"registration_endpoint":"https://mcp.agentcard.sh/register"}