Building a Remote MCP Server on Cloudflare (Without Auth)

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

It is an example project that deploys a remote MCP server on Cloudflare Workers without authentication. It provides a template for creating and customizing MCP tools, and connects to remote MCP clients like Cloudflare AI Playground or Claude Desktop.

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

Deploy via the "Deploy to Workers" button or run npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless. Customize tools inside the init() method of src/index.ts. Connect to Cloudflare AI Playground by entering the SSE URL, or to Claude Desktop via the mcp-remote proxy with the appropriate configuration.

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

• Deploy a remote MCP server without authentication
• Hosted on Cloudflare Workers for global scalability
• Easily customizable tools via this.server.tool(...)
• Direct connection to Cloudflare AI Playground
• Compatible with Claude Desktop using the mcp-remote proxy

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

• Quickly deploy a live MCP server for prototyping or internal tools
• Integrate custom MCP tools with Cloudflare AI Playground
• Connect remote MCP servers to desktop clients like Claude Desktop
• Experiment with server‑side MCP functionality without auth overhead

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

Do I need authentication for this MCP server?

No. This example is designed to work without any authentication.

How do I add my own tools to the server?

Open src/index.ts and define each tool inside the init() method using this.server.tool(...).

How can I connect the server to Claude Desktop?

Install the mcp-remote proxy (npx mcp-remote) and add a configuration entry in Claude Desktop pointing to your SSE URL.

How do I connect to Cloudflare AI Playground?

Go to the playground’s settings and enter your server’s SSE URL (e.g., remote-mcp-server-authless.<your-account>.workers.dev/sse).

Can I run this server locally before deploying?

Yes. Use the npm create cloudflare@latest command with the template to set up the project locally, then deploy.