rest-to-mcp
A bridge that enables any LLM to access and interact with documented REST APIs through the Model Context Protocol (MCP).
README
rest-to-mcp
A bridge that enables any LLM to access and interact with documented REST APIs through the Model Context Protocol (MCP).
Overview
rest-to-mcp provides a seamless adapter layer that allows language models to:
- Discover available endpoints from REST APIs that publish OpenAPI/Swagger documentation
- Make direct HTTP requests to these endpoints
This enables LLMs to interact with external REST services without requiring custom integration code for each API.
How It Works
This project implements an MCP server with two primary tools:
1. discover-endpoints
Automatically locates API documentation by probing common paths where OpenAPI/Swagger specs are typically published:
/openapi.json/swagger.json/swagger/v1/swagger.json/api-docs/api-docs.json
2. make-request
Allows direct HTTP interactions with any REST endpoint:
- Supports GET, POST, PUT, DELETE methods
- Handles JSON request and response bodies
- Returns formatted JSON responses to the LLM
Developing
deno install
Start the MCP server:
deno run dev
This launches the server using the MCP Inspector for testing and debugging.
Integration
LLMs can connect to this server through the Model Context Protocol, enabling them to:
- First discover what endpoints are available on a REST API
- Make appropriate requests to those endpoints
- Process the JSON responses
License
Project licensed under the MIT License.
More information on the LICENSE file.
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