{"issuer":"https://backend.pdf-mcp.io","authorization_endpoint":"https://backend.pdf-mcp.io/oauth/authorize","token_endpoint":"https://backend.pdf-mcp.io/oauth/token","registration_endpoint":"https://backend.pdf-mcp.io/oauth/register","introspection_endpoint":"https://backend.pdf-mcp.io/oauth/introspect","response_types_supported":["code"],"grant_types_supported":["authorization_code","refresh_token"],"token_endpoint_auth_methods_supported":["client_secret_basic","client_secret_post","none"],"code_challenge_methods_supported":["S256"],"scopes_supported":["pdf:read","pdf:write","profile","email"],"service_documentation":"https://pdf-mcp.io/docs","ui_locales_supported":["en"]}