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 (Model Context Protocol) server that does not require authentication, using Cloudflare Workers. It is intended for developers who want to quickly set up a remote MCP server for testing or integration with MCP clients.

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

Deploy the server via the “Deploy to Workers” button or by running npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless. Customize tools inside the init() method of src/index.ts using this.server.tool(...). Connect from Cloudflare AI Playground or from Claude Desktop using the mcp-remote proxy with an SSE URL.

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

• Deploy with one click to Cloudflare Workers
• No authentication required for access
• Customizable MCP tools via source code
• Connect directly from Cloudflare AI Playground
• Works with Claude Desktop via mcp-remote proxy
• Uses SSE transport (Server-Sent Events)

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

• Quickly test MCP tools without setting up authentication
• Integrate MCP tools with Cloudflare AI Playground
• Use MCP tools from Claude Desktop over the internet

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

Does this server require authentication?

No, the server is intentionally built without authentication to simplify deployment and testing.

How do I deploy the server?

Use the “Deploy to Workers” button or run npm create cloudflare@latest with the provided template. The server is deployed to a URL like remote-mcp-server-authless.<your-account>.workers.dev/sse.

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 this server to Claude Desktop?

Use the mcp-remote proxy. In Claude Desktop’s MCP configuration, set the command to npx mcp-remote with the SSE URL of your deployed server.

What transport does this server use?

The server uses SSE (Server-Sent Events) as its transport protocol.