Building a Remote MCP Server on Cloudflare (Without Auth)

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

This server deploys a remote MCP (Model Context Protocol) server on Cloudflare Workers without requiring authentication. It is intended for developers who want to quickly set up an MCP endpoint that can be reached by MCP clients such as Cloudflare AI Playground or Claude Desktop.

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

Deploy the server by clicking the "Deploy to Workers" button or by running npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless in your terminal. Customize tools inside the init() method of src/index.ts using this.server.tool(...). Connect to Cloudflare AI Playground by entering the deployed SSE URL, or connect Claude Desktop via the mcp-remote proxy (configured in claude_desktop_config.json).

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

• Deploy with one click via Cloudflare Workers button
• Customize tools directly in src/index.ts
• No authentication required for remote access
• Works with Cloudflare AI Playground as remote client
• Compatible with Claude Desktop via mcp-remote proxy
• SSE endpoint for real‑time communication

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

• Quickly test a remote MCP server without setting up auth
• Connect Claude Desktop to custom tools hosted on Cloudflare
• Experiment with MCP in the Cloudflare environment
• Use AI Playground to interact with remote MCP tools

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

What does “without auth” mean?

The deployed MCP server does not require any authentication (e.g., API keys or tokens) to be accessed remotely. It is intended for testing or non-production use.

How do I deploy the server?

Click the "Deploy to Workers" button in the README, or run npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless in your terminal.

How do I add my own tools?

Define each tool inside the init() method of src/index.ts using the this.server.tool(...) method.

How do I connect Claude Desktop to the server?

Use the mcp-remote proxy (npm package) and configure it as an MCP server in Claude Desktop’s claude_desktop_config.json with the command npx mcp-remote <your-sse-url>.

What is the endpoint URL for the server?

After deployment, the server is available at a URL like remote-mcp-server-authless.<your-account>.workers.dev/sse.