Remote MCP Server Authless V0

You can run a remote MCP server that exposes its tools over Cloudflare Workers or via a local proxy, allowing clients to access and use your MCP tools without hosting complexity on your own infrastructure. This guide shows practical steps to deploy, connect, and use such a server from common MCP clients.

How to use

Connect to your remote MCP server from a client to access its tools. You can use a remote Cloudflare-powered endpoint or run a local proxy so desktop clients can reach the server. For remote access, point your MCP client at the server URL that is generated when you deploy. For local workflows, configure a local proxy URL and connect the client to that endpoint.

Using the Cloudflare Playground, you can test and run your MCP tools directly in a web-based client. Open the Playground, enter your deployed MCP server URL, and you’ll see the available tools loaded for fast experimentation and usage.

If you want to useClaude Desktop or other local MCP clients, add a remote proxy configuration that points to either the local proxy URL or the remote server URL. This lets you run your remote tools as if they were installed locally. See the configuration example for Claude Desktop below for the exact settings you’ll need to enter.

How to install

Prerequisites you need before starting:

• Node.js and npm installed on your machine

• Access to a Cloudflare account if you plan to deploy to Cloudflare Workers

Steps to set up the MCP server locally or remotely:

# Create a new MCP server project with the remote-authless template
npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless

Additional content

To customize your MCP server, modify the init() method in src/index.ts and add your own tools using this.server.tool(...) to register new capabilities.

Connecting to Cloudflare AI Playground is a quick way to test and use your MCP server. Use the provided server URL and you’ll be able to call your tools from a remote client.

If you are wiring up Claude Desktop or another local client, you can use a remote proxy to reach your server. The following example shows how to configure Claude Desktop so the client can access your remote MCP server. You can replace the placeholder URL with your actual deployed server URL.

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