Building a Remote MCP Server on Cloudflare (Without Auth)

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

This example lets you deploy a remote MCP server on Cloudflare Workers without requiring authentication. It is for developers who want to host MCP tools on Cloudflare’s edge network and connect them to remote MCP clients like the Cloudflare AI Playground or Claude Desktop.

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

Deploy with the “Deploy to Workers” button or run npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless. Customize tools by editing the init() method in src/index.ts using this.server.tool(...). Connect to the Cloudflare AI Playground by entering your deployed SSE URL, or to Claude Desktop by installing the mcp-remote proxy and configuring a local MCP client.

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

• Deploys a remote MCP server on Cloudflare Workers
• No authentication required for access
• Customizable tools via the init() method
• Connects to Cloudflare AI Playground as a remote MCP client
• Works with local clients via the mcp-remote proxy

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

• Hosting MCP tools on Cloudflare’s edge without authentication
• Testing and prototyping remote MCP servers quickly
• Integrating MCP tools into the Cloudflare AI Playground workflow
• Using MCP tools from Claude Desktop via an edge-deployed server

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

What is the URL format after deployment?

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

How do I add my own tools to the MCP server?

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

How do I connect Claude Desktop to this server?

Install the mcp-remote proxy, configure a local MCP client with the server’s SSE URL, and update Claude Desktop’s settings with the proxy configuration.

Does the server require API keys or authentication?

No, the example explicitly deploys a remote MCP server without authentication.

What transport does the server use?

The server communicates via Server-Sent Events (SSE), as shown by the /sse path in the URL.