MCP API

A Node.js server that manages multiple Model Context Protocol (MCP) servers and exposes their tools via a REST API.

Features

• Connects to multiple MCP servers defined in configuration

• Exposes server tools via REST API endpoints

• Swagger documentation at /api-docs

• Tool name normalization and mapping between OpenAI and MCP formats

Installation

Clone the repository and then run the follow command:

npm i && npm run dev

Rename .env.example file to .env and update the environment variable to be the full local path to your MCP config.json file

Usage

This spins up an ExpressJS server on port 3005

GET /tools/:toolType

Retrieves an array of all tools

Use /tools/mcp for the MCP format or use /tools/openai for the OpenAI format for how a tool function is structured.

POST /callTool

Executes a tool function call.

Request body:

{
    "toolName":"toolname",
    "arguments":{}
}

The output will be the result from the tool