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ReAPI-com/mcp-openapi

⭐ 90 TypeScript added to this list on 2025-05-06 repository created 2025-03-29

@reapi/mcp-openapi loads multiple OpenAPI specifications from a directory and exposes their contents through MCP, so an assistant in an editor such as Cursor or Cline knows what an API actually accepts and returns. It maintains a catalogue of the available specifications, exposes each API's operations — paths, methods, parameters and responses — and serves schemas in dereferenced form, meaning $ref pointers are resolved so a model sees the complete shape of a request or response body instead of a chain of references it would have to follow. This addresses a specific and common failure: a model writing client code invents field names that look plausible, and the error only surfaces at runtime. With the specification loaded, the field names come from the contract. Serving several specifications at once matters in a microservice codebase where one change touches multiple APIs. The server is TypeScript, published on npm as @reapi/mcp-openapi, and works with any OpenAPI or Swagger document on disk, so it fits a repository that keeps its specifications in version control. It is sponsored by ReAPI, whose commercial platform covers no-code API design and testing, but the server itself is open source and works standalone. The audience is developers writing or consuming HTTP APIs with an assistant.

https://github.com/ReAPI-com/mcp-openapi

mcpopenapiswaggertypescriptapi-schemascursorcode-generation