Remote

You can deploy and run a remote MCP server on Cloudflare Workers that exposes MCP tools to clients without requiring authentication. This setup lets you connect from MCP clients like the Cloudflare AI Playground or local clients via an mcp-remote proxy, enabling practical tool usage across environments.

How to use

Connect your MCP server to an MCP client to begin using your tools. You can access the server from the Cloudflare AI Playground by providing your deployed server URL, then interact with your tools directly in the playground. You can also connect from local clients by configuring the client to point at your server’s SSE endpoint.

How to install

Prerequisites you need before installing:
- Node.js (recommended LTS) and npm installed on your machine
- Access to Cloudflare Workers if you plan to deploy there
- Basic familiarity with running commands in a terminal

Install and create your remote MCP server project with a single command:

npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless

Additional sections

Customize your MCP server by adding tools within the init() method of the server’s source. Define each tool using this.server.tool(...) to expose new capabilities to MCP clients.

Connect Claude Desktop or other local MCP clients to your remote server. The following configuration demonstrates how to connect to the remote server from a local client, using an mcp-remote proxy. Update the server URL to match your deployed endpoint and restart the client to enable tools.

{
  "mcpServers": {
    "calculator": {
      "command": "npx",
      "args": [
        "mcp-remote",
        "https://remote-mcp-server-authless.your-account.workers.dev/sse"
      ]
    }
  }
}