Vercel

You can run an MCP server on a deployment platform and expose a single entry point for clients to call tools remotely. This setup enables Streamable HTTP communication, supports a dedicated UI panel, and lets you test and connect using simple HTTP endpoints and local development workflows.

How to use

To use this MCP server with a client, connect to the deployment URL followed by the MCP path. The server also provides a streamable HTTP interface and a server-sent events (SSE) transport at the designated endpoints. When your client invokes tools, the server routes those calls to the configured tools and returns structured responses that your app can display or act upon.

How to install

Prerequisites you need to install and run the MCP server locally or in your deployment environment include Node.js and npm. You will also need access to the deployment platform where you intend to host the server.

# Install dependencies for local development (example workflow)
npm install

# Start the local MCP server (if applicable to your environment)
npm run dev

Additional notes and setup considerations

The server exposes an HTTP MCP endpoint at your deployment URL with the path /mcp. SSE transport is available at /sse. For local testing, you can use the provided testing scripts to validate Streamable HTTP and SSE transports.

If you are deploying to a platform like Vercel, you may need to enable compute features and adjust deployment settings. For example, ensure the deployment configuration allows sufficient maximum duration for longer-running tasks.

To validate tool invocation locally, you can use the included testing utilities or craft an HTTP request to call a tool by name with the desired arguments. Use the deployment URL followed by /mcp for the MCP endpoint and use /sse for streaming interactions.

You can run local development with the platform’s CLI tools if provided. For example, you might use a development command to spin up a local instance for testing before deploying to production.

Available tools

hello_world

Returns a hello message with an allowlisted style input.