Building a Remote MCP Server on Cloudflare (Without Auth)

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

A deployable MCP server that runs on Cloudflare Workers without requiring authentication. It serves SSE‑based remote MCP endpoints and is designed for developers who want a quick, no‑auth remote MCP server integrated with Cloudflare’s ecosystem.

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

Deploy via the “Deploy to Workers” button or by running npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless. Then customize tools by editing src/index.ts using this.server.tool(...). Connect from the Cloudflare AI Playground by entering the deployed SSE URL, or from Claude Desktop using the mcp-remote proxy.

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

• Deployable with one click to Cloudflare Workers
• No authentication required for remote access
• SSE transport for MCP communication
• Customizable tools defined in TypeScript
• Works with Cloudflare AI Playground as a remote MCP client
• Local MCP clients connect via the mcp-remote proxy

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

• Rapidly prototyping a remote MCP server for testing
• Exposing MCP tools without managing authentication
• Integrating MCP tools into Cloudflare AI Playground
• Connecting MCP servers to desktop clients (e.g., Claude Desktop) via the proxy

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

How do I deploy this server?

Use the “Deploy to Workers” button or run the npm create cloudflare command provided in the README.

What URL does the server use after deployment?

The server becomes available at remote-mcp-server-authless.<your-account>.workers.dev/sse.

How can I add custom tools?

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

How do I connect from Claude Desktop?

Use the mcp-remote proxy (npm package) and configure Claude Desktop’s mcpServers with command: "npx" and arguments pointing to the server’s SSE URL.

Does this server require any authentication?

No, the server is explicitly built to require no authentication.