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 that doesn't require authentication on Cloudflare Workers. It is for developers who want to expose Model Context Protocol tools over the internet without managing auth.

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, add custom tools inside src/index.ts using this.server.tool(...). Connect clients like Cloudflare AI Playground (enter the SSE URL) or Claude Desktop (via the mcp-remote proxy and a JSON config).

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

• Deploy a remote MCP server without authentication
• Hosted on Cloudflare Workers with SSE transport
• Add custom tools via the init() method
• One-click deploy using the Workers button
• Connect from Cloudflare AI Playground or local clients

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

• Expose tools to a remote MCP client like Cloudflare AI Playground
• Connect Claude Desktop to tools running on Cloudflare Workers
• Prototype MCP-based services without setting up authentication

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

How do I deploy this MCP server?

Click the “Deploy to Workers” button or run npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless in your terminal.

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 to Cloudflare AI Playground?

Go to https://playground.ai.cloudflare.com/, enter your deployed MCP server URL (e.g., remote-mcp-server-authless.<account>.workers.dev/sse), and use the tools.

How do I connect Claude Desktop to this server?

Use the mcp-remote npm package as a proxy. Configure Claude Desktop’s MCP servers with command: "npx" and args: ["mcp-remote", "<your-sse-url>"].

Does this server require authentication?

No. The example explicitly deploys a remote MCP server without authentication.