header-test-mcp

# Header Test MCP [](LICENSE.md) > header-test-mcp is an MCP Server which has one tool `get-request-headers` which returns all headers that were sent with the current request Use this Server to debug your MCP Host / Client custom header implementation. ## Getting Started ### Prerequisites Before you start with **sample-mcp-server**, ensure the following are installed: - **[Node.js](https://nodejs.org/)** (v18 or above recommended) Required to run the server and manage dependencies. ```bash brew install node ``` - **[PNPM](https://pnpm.io/)** (v10 or above recommended) The project uses PNPM as its package manager. Install globally with: ```bash npm install -g pnpm ``` ### Setup Install dependencies: ```bash pnpm i ``` Start MCP Server on localhost:3333 : ```bash pnpm dev ``` Install dependencies & start server in one command: ```bash pnpm d ``` **Server URL `http://localhost:3333/mcp`** ### Tunneling If your host requires HTTPS you can easily tunnel the server via a service like [ngrok](https://ngrok.com/): ```bash ngrok http 3333 ```