Remote

You can deploy a remote MCP server on Cloudflare Workers that enables you to expose your MCP tools without requiring authentication, making it easy to connect from clients like the Cloudflare AI Playground or Claude Desktop for quick experimentation and collaboration.

How to use

Connect to your remote MCP server from an MCP client or the Cloudflare AI Playground to start using your tools. The server is accessed via a dedicated SSE endpoint, and you can connect tooling from multiple environments. For example, you can point Claude Desktop to your remote server so your local tools appear as readily available options.

How to install

Prerequisites: Node.js and npm must be installed on your machine. You will also need access to Cloudflare Workers if you want to host the MCP server there.

Step 1: Create or initialize the remote MCP server on Cloudflare using the provided template. This will set up the server at a URL similar to remote-mcp-server-authless.your-account.workers.dev/sse.

Step 2: If you prefer the local setup flow, use the command below to bootstrap the remote MCP server on your machine with the same template. Paste this into your terminal and run it.

Additional sections

Customizing your MCP Server: To add your own tools to the MCP server, define each tool inside the init() method of src/index.ts using this.server.tool(...). This lets you tailor the server to your specific needs and expose precisely the capabilities you want to share with clients.

Connect to Cloudflare AI Playground: You can connect to your MCP server from the Cloudflare AI Playground, which acts as a remote MCP client. Go to playground.ai.cloudflare.com, enter your deployed MCP server URL (remote-mcp-server-authless.your-account.workers.dev/sse), and start using your MCP tools directly from the playground.

Connect Claude Desktop to your MCP server: You can also connect to your remote MCP server from Claude Desktop. In Claude Desktop, navigate to Settings > Developer > Edit Config and use the following configuration to point to your remote server.

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

Available tools

calculator

Exposes a calculator tool on the MCP server that can be accessed remotely via Claude Desktop and other MCP clients.