Remote Authless

You can run a remote MCP server on Cloudflare Workers that exposes its tools over SSE, enabling you to use them from local clients or cloud-based playgrounds. This setup is useful for sharing, testing, or integrating AI-capable tools without hosting your own infrastructure.

How to use

You can access your remote MCP server from any compatible MCP client. Use the server’s designated SSE URL to connect from a cloud-based playground or a local client proxy. Once connected, you can invoke the exposed tools and have the MCP server generate responses or perform actions on your behalf.

How to install

Prerequisites: ensure you have Node.js and npm installed on your machine.

Create your remote MCP server using Cloudflare’s setup flow or the local bootstrap command shown in the example.

Connect to Cloudflare AI Playground

Open the Cloudflare AI Playground and connect to your deployed MCP server using its SSE URL. You can now interact with your MCP tools directly from the playground.

Connect Claude Desktop to your MCP server

You can also connect from Claude Desktop by configuring the MCP server in the Claude App. Use the following configuration to point Claude Desktop at your remote server.

{
  "mcpServers": {
    "calculator": {
      "command": "npx",
      "args": [
        "mcp-remote",
        "http://localhost:8787/sse"  // or remote-mcp-server-authless.your-account.workers.dev/sse
      ]
    }
  }
}