Building a Remote MCP Server on Cloudflare (Without Auth)

What is Building a Remote MCP Server on Cloudflare (Without Auth)?

This is a template for deploying a remote Model Context Protocol (MCP) server on Cloudflare Workers that requires no authentication. It is intended for developers who want to expose MCP tools over SSE without user login.

How to use Building a Remote MCP Server on Cloudflare (Without Auth)?

Deploy with one click using the "Deploy to Workers" button, or via the command npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless. After deployment, customize tools in src/index.ts using this.server.tool(...). Connect remote clients by pointing them to the generated SSE endpoint.

Key features of Building a Remote MCP Server on Cloudflare (Without Auth)

• Deployable with one click via Cloudflare Workers
• No authentication required for remote access
• Supports custom tools defined in TypeScript
• Uses SSE transport for real‑time communication
• Works with Cloudflare AI Playground and Claude Desktop

Use cases of Building a Remote MCP Server on Cloudflare (Without Auth)

• Expose a calculator tool to Claude Desktop via remote proxy
• Provide AI tools accessible from the Cloudflare AI Playground
• Quickly prototype an MCP server without setting up authentication

FAQ from Building a Remote MCP Server on Cloudflare (Without Auth)

What exactly does this server do?

It is a remote MCP server that runs on Cloudflare Workers, listens for SSE connections, and exposes tools you define. It does not require any authentication.

How do I deploy it?

Use the “Deploy to Workers” button on the README or run npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless. After deployment, your server is live at a URL like remote-mcp-server-authless.<your-account>.workers.dev/sse.

How do I connect to Cloudflare AI Playground?

Go to https://playground.ai.cloudflare.com/, enter your deployed SSE URL, and start using the tools directly.

How do I connect Claude Desktop to this server?

Install the mcp-remote proxy via npm, then add an entry to Claude Desktop’s MCP config pointing to your SSE endpoint (e.g., http://localhost:8787/sse or the remote URL).

What runtime or dependencies are needed?

You need a Cloudflare Workers account and Node.js/npm to run the local creation command. No database or external service is required.