{"issuer":"https://mcp-server.signnow.com/","authorization_endpoint":"https://mcp-server.signnow.com/authorize","token_endpoint":"https://mcp-server.signnow.com/oauth2/token","jwks_uri":"https://mcp-server.signnow.com/.well-known/jwks.json","registration_endpoint":"https://mcp-server.signnow.com/oauth2/register","scopes_supported":["offline_access","*"],"response_types_supported":["code"],"grant_types_supported":["authorization_code","refresh_token"],"code_challenge_methods_supported":["S256"],"token_endpoint_auth_methods_supported":["none","client_secret_post"]}