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 server on Cloudflare Workers without requiring authentication. It is intended for developers who want to expose MCP tools over SSE (Server‑Sent Events) to remote clients, with a simple deployment and no built‑in auth layer.

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

Deploy using the “Deploy to Workers” button or the CLI command npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless. Customize tools by defining each tool inside the init() method of src/index.ts using this.server.tool(...). Connect to the server from the Cloudflare AI Playground by entering the deployed SSE URL, or from Claude Desktop by using the mcp-remote proxy with the same URL in the MCP configuration.

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

• Deploy a remote MCP server without authentication.
• Uses SSE (Server‑Sent Events) transport.
• Customize tools via the init() method.
• Connect to Cloudflare AI Playground directly.
• Connect to local MCP clients via the mcp-remote proxy.

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

• Expose MCP tools publicly without needing authentication.
• Quickly prototype and test custom MCP tools on a remote endpoint.
• Integrate MCP tools into Cloudflare’s AI Playground for interactive experimentation.
• Use the server from desktop MCP clients like Claude Desktop via a local proxy.