Building a Remote MCP Server on Cloudflare (Without Auth)

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

This example allows you to deploy a remote MCP (Model Context Protocol) server on Cloudflare Workers that does not require authentication. It is intended for developers who want a quick, no-auth MCP server integrated with Cloudflare's infrastructure.

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

Deploy by clicking the "Deploy to Workers" button in the README or by running npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless. After deployment, the server is available at a URL like remote-mcp-server-authless.<your-account>.workers.dev/sse. Connect to it from Cloudflare AI Playground by entering that URL, or from local MCP clients (e.g., Claude Desktop) using the mcp-remote proxy as shown in the README’s JSON configuration example.

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

• Deploy a remote MCP server without authentication.
• Customize MCP tools via the server.tool() method in src/index.ts.
• Connect directly to Cloudflare AI Playground.
• Connect local clients (e.g., Claude Desktop) via mcp-remote proxy.
• Fully serverless deployment on Cloudflare Workers.

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

• Quickly deploy a public MCP server for prototyping or internal tools.
• Enable custom MCP tools in the Cloudflare AI Playground.
• Connect the remote MCP server to local AI applications like Claude Desktop.

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

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 custom tools?

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

How do I connect to Claude Desktop?

Use the mcp-remote proxy (from npm). Update your Claude Desktop's mcpServers configuration with the command npx mcp-remote and your server’s SSE URL.

What URL will my server have?

After deployment, the server is available at remote-mcp-server-authless.<your-account>.workers.dev/sse (replace <your-account> with your Cloudflare account identifier).

Does this server require authentication?

No, this example is specifically designed to run without authentication.