Building a Remote MCP Server on Cloudflare (Without Auth)

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

A template that deploys a remote MCP server to Cloudflare Workers using SSE transport, requiring no authentication. It's aimed at developers who want to expose MCP tools from the Cloudflare edge.

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

Deploy with the "Deploy to Workers" button or via 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 from 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)

• Deploy a remote MCP server with zero authentication
• Uses SSE (Server-Sent Events) transport
• Customizable tools via the init() method
• One-click deploy to Cloudflare Workers
• Connect from remote MCP clients like AI Playground

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

• Expose MCP tools from the Cloudflare edge without user login
• Prototype a remote MCP server quickly with minimal configuration
• Build custom developer tools accessible via any remote MCP client
• Integrate with Cloudflare AI Playground for testing

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

What is this MCP server?

It's a Cloudflare Workers template that implements a remote MCP server over SSE without requiring authentication.

How does it differ from a local MCP server?

It runs on Cloudflare's edge, accessible via a public URL, and uses SSE instead of stdio transport.

What runtime or dependencies are required?

Requires Node.js (for wrangler) and a Cloudflare account. The server runs on Cloudflare Workers.

Where does data or state live?

No persistent storage is included; state is ephemeral per worker instance unless you add bindings.

Is authentication supported?

No, this template deploys without any authentication layer.