{"issuer":"https://mcp.multiplegroupposter.com","authorization_endpoint":"https://mcp.multiplegroupposter.com/authorize","token_endpoint":"https://mcp.multiplegroupposter.com/token","registration_endpoint":"https://mcp.multiplegroupposter.com/register","response_types_supported":["code"],"grant_types_supported":["authorization_code","refresh_token"],"code_challenge_methods_supported":["S256"],"token_endpoint_auth_methods_supported":["none"],"scopes_supported":["mgp","offline_access"],"client_id_metadata_document_supported":true,"authorization_response_iss_parameter_supported":true}