Building a Remote MCP Server on Cloudflare (Without Auth)

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

This template deploys a remote MCP (Model Context Protocol) server on Cloudflare Workers without requiring authentication. It is intended for developers who want to expose MCP tools over HTTP/SSE with minimal setup.

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

Deploy with one click using the Deploy to Workers button or run npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless from the terminal. Customize tools in src/index.ts inside the init() method via this.server.tool(...). Connect to the Cloudflare AI Playground by entering the deployed URL (e.g., remote-mcp-server-authless.<your-account>.workers.dev/sse) or to Claude Desktop by using the mcp-remote proxy and editing the Claude Desktop configuration.

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

• Deploy a remote MCP server on Cloudflare Workers.
• No authentication required for the server.
• Customize tools using the this.server.tool() method.
• Connect directly from Cloudflare AI Playground.
• Connect from local clients via the mcp-remote proxy.
• Supports streaming via SSE transport.

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

• Running MCP tools in a serverless environment without user authentication.
• Prototyping and testing MCP tools with Cloudflare AI Playground.
• Integrating MCP tools with Claude Desktop through a remote endpoint.

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

How is this MCP server deployed?

You can deploy using the one-click “Deploy to Workers” button or via the command npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless.

Does the server require authentication?

No, this example deploys a remote MCP server that does not require any authentication.

How do I add custom tools?

Define each tool inside the init() method of src/index.ts using this.server.tool(...). Refer to Cloudflare’s documentation on MCP tools for details.

How can I connect this server to Claude Desktop?

Use the mcp-remote proxy (npm package) and configure Claude Desktop’s MCP server settings with the command npx mcp-remote <your-server-url>/sse.

What is the default endpoint URL?

After deployment, the server is available at remote-mcp-server-authless.<your-account>.workers.dev/sse.