Building a Remote MCP Server on Cloudflare (Without Auth)

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

This example lets you deploy a remote MCP server without authentication on Cloudflare Workers, offering tools for website analysis and content extraction using Cloudflare’s Browser Rendering and AI capabilities. It is intended for developers who want a serverless, no‑auth MCP endpoint.

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. After deployment, you can connect from the Cloudflare AI Playground or from desktop clients (e.g., Claude Desktop) using the mcp-remote proxy with the endpoint remote-mcp-server-authless.<your-account>.workers.dev/sse.

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

• analyze_website – scrapes and summarizes a site using Cloudflare AI.
• ask_q_about_website – scrapes a site and answers a specific question.
• Runs on Cloudflare Workers with zero authentication required.
• Uses Cloudflare Browser Rendering and AI bindings.
• Easily customizable by editing src/index.ts with this.server.tool(...).

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

• Quickly summarize the content of any public website.
• Ask targeted questions about a company’s services from its homepage.
• Provide an open MCP endpoint for experimentation or prototyping.
• Enable AI assistants to retrieve live web data without manual scraping.

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

What Cloudflare services are required?

You need Cloudflare Workers with browser binding (BROWSER) and AI binding (AI), both configured in wrangler.jsonc.

How can I connect Claude Desktop to this MCP server?

Use the mcp-remote proxy (npm package) and configure Claude Desktop with a JSON entry pointing to the server’s SSE URL.

Is authentication needed to use this server?

No — the server is intentionally deployed without any authentication.

How do I add my own tools?

Edit src/index.ts and inside the init() method use this.server.tool(...) to define new tools. See Cloudflare’s MCP tools documentation.

What transport does this server use?

It uses Server‑Sent Events (SSE) at the path /sse.