Building a Remote MCP Server on Cloudflare (Without Auth)

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

This example deploys a remote MCP server that does not require authentication on Cloudflare Workers. It is aimed at developers who want to quickly set up an MCP server with custom AI tools and connect it to MCP clients.

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 by editing src/index.ts inside the init() method with this.server.tool(...). Connect to the Cloudflare AI Playground by entering the deployed SSE URL, or to Claude Desktop via the mcp-remote proxy with the provided configuration.

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

• Deploy without authentication on Cloudflare Workers
• SSE transport at /sse endpoint
• Easily add custom tools via this.server.tool(...)
• Works with Cloudflare AI Playground as remote client
• Connects to local clients like Claude Desktop using mcp-remote

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

• Quickly prototype an MCP server with no auth for testing
• Host AI tools accessible from Cloudflare AI Playground
• Connect remote MCP tools to Claude Desktop via proxy

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

What does this server do vs alternatives?

This server is a template for deploying an MCP server on Cloudflare Workers without authentication. It uses SSE transport and is designed for rapid deployment and testing.

What are the runtime requirements?

It requires a Cloudflare account and uses the Workers runtime. The local setup uses npm create cloudflare@latest.

Where does data live?

The MCP server runs on Cloudflare Workers; no persistent data storage is described in the README.

What transport does it use?

It uses SSE (Server-Sent Events) at the /sse endpoint.

Does it require authentication?

No, the entire server is deployed without authentication as stated in the title and instructions.