MCP Server Tester

⚠️ WORK IN PROGRESS: This project is under active development and has not been thoroughly tested yet. Features may be incomplete, contain bugs, or change significantly. Use at your own risk in…

Local serverstdioMIT

What is the MCP Server Tester MCP Server?

MCP Server Tester is an MCP project maintained in the r-huijts/mcp-server-tester repository. The maintainer describes its purpose as “⚠️ WORK IN PROGRESS: This project is under active development and has not been thoroughly tested yet. Features may be incomplete, contain bugs, or change…”. Read the project documentation for the complete scope.

Local setup

The project provides a local client configuration using node. Follow the repository’s build and installation steps before copying it, and replace example paths with the paths on your own computer.

Configuration values

The example declares DEBUG, NODE_ENV. Secret-looking values have been replaced with placeholders. Required and optional labels are shown only when the documentation states them.

Source

Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.

How to install the MCP Server Tester MCP Server

{
  "mcpServers": {
    "my-dev-server": {
      "command": "node",
      "args": [
        "/path/to/your/project/dist/server.js"
      ],
      "env": {
        "DEBUG": "true",
        "NODE_ENV": "development"
      }
    }
  }
}

From the project documentation. Replace placeholders and example paths before connecting.

Configuration

Variable	Description	Required
DEBUG	Declared in the maintainer’s client configuration.	Check documentation
NODE_ENV	Declared in the maintainer’s client configuration.	Check documentation