OpenAPI MCP Server

The OpenAPI document for a large public API runs to hundreds of kilobytes, which is more than a context window can hold and far more than a single question needs. This remote server, reachable at openapi-mcp.openapisearch.com/mcp, therefore never hands over the raw spec. It first resolves which API you mean, then returns a plain-language summary of what the spec contains, and only then fetches the specific operations relevant to the task with their parameters and response shapes. JSON and YAML sources both work. The trade-off is honest: identification depends on the openapisearch index behind it, so an obscure internal spec is better served by a server you point at your own file.