Building a Remote MCP Server on Cloudflare (Without Auth)

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

This server lets you deploy a remote Model Context Protocol (MCP) server on Cloudflare Workers without requiring authentication. It is designed for developers who want to expose MCP tools over SSE (Server-Sent Events) to remote clients such as Cloudflare’s AI Playground or Claude Desktop.

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

Deploy by clicking the Deploy to Workers button or by running npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless in your terminal. After deployment, connect clients by pointing them to your server’s SSE URL (e.g., remote-mcp-server-authless.<your-account>.workers.dev/sse). To add custom tools, edit the init() method in src/index.ts using this.server.tool(...).

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, low-latency access.
• Includes a one-click Deploy to Workers button.
• Supports custom tool definitions via the init() method.
• Compatible with Cloudflare AI Playground and Claude Desktop.
• Uses SSE transport for real-time communication.

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

• Connect custom MCP tools to Cloudflare’s AI Playground from any location.
• Use MCP tools inside Claude Desktop via a remote proxy.
• Prototype and test MCP servers without setting up authentication.
• Quickly share MCP tool access with teammates or public users.