Building a Remote MCP Server on Cloudflare (Without Auth)
@crocodile
Overview
What is Building a Remote MCP Server on Cloudflare (Without Auth)?
This template deploys a remote MCP server on Cloudflare Workers that requires no authentication. It is intended for developers who want to expose MCP tools over SSE without auth.
How to use Building a Remote MCP Server on Cloudflare (Without Auth)?
Deploy using the "Deploy to Workers" button or run npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless. Customize tools in src/index.ts using this.server.tool(...). Connect via Cloudflare AI Playground or Claude Desktop using the mcp-remote proxy.
Features of Building a Remote MCP Server on Cloudflare (Without Auth)
- Deploy a remote MCP server on Cloudflare Workers
- No authentication required
- Customize tools in the
init()method - Exposes an SSE endpoint
- Connects to Cloudflare AI Playground
- Connect Claude Desktop via mcp-remote proxy
Use cases of Building a Remote MCP Server on Cloudflare (Without Auth)
- Exposing MCP tools publicly without authentication
- Testing remote MCP clients like Cloudflare AI Playground
- Connecting Claude Desktop to a remote MCP server via proxy
FAQ from Building a Remote MCP Server on Cloudflare (Without Auth)
How do I deploy the server?
Click the "Deploy to Workers" button or run npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless.
How do I add custom tools?
Define each tool inside the init() method of src/index.ts using this.server.tool(...).
How do I connect to Cloudflare AI Playground?
Go to https://playground.ai.cloudflare.com/, enter your deployed server's SSE URL (e.g., remote-mcp-server-authless.<your-account>.workers.dev/sse), and use the tools directly.
How do I connect Claude Desktop to the server?
Use the mcp-remote npm package as a proxy. In Claude Desktop's config, add an entry with command: "npx" and args: ["mcp-remote", "<your-sse-url>"].
What is the server's URL after deployment?
The server is deployed to a URL like remote-mcp-server-authless.<your-account>.workers.dev/sse.
