Check the structure of a server/discover response used by current stateless MCP implementations.
This utility checks the JSON-RPC envelope and basic capability structure of an MCP server/discover result without connecting to a server.
Validate MCP server/discover JSON-RPC responses and capability structures.
Use MCP Server Discover Response Validator as a focused pre-flight utility while building, reviewing or debugging an MCP integration. Paste the relevant configuration, protocol message, metadata, schema or value into the tool and review the returned findings before the same data reaches a production client or server.
Protocol checks are especially useful when debugging interoperability between different MCP clients, servers, gateways and SDK versions. The tool analyzes the data you provide and does not initiate a live MCP exchange.
A clean result means the input passed the rules implemented by this utility. It does not guarantee application security, protocol interoperability or correct business behavior. Test important integrations against the exact MCP client, SDK, gateway and server versions used in your deployment.