Building a Remote MCP Server on Cloudflare (Without Auth)

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

This server allows you to deploy a remote Model Context Protocol (MCP) server without authentication on Cloudflare Workers. It is intended for developers who want to expose MCP tools over SSE (Server-Sent Events) from a globally distributed edge network.

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

Deploy using the "Deploy to Workers" button or run npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless. Customize tools by editing src/index.ts and adding this.server.tool(...) inside the init() method. Connect to Cloudflare AI Playground or local clients like Claude Desktop via the mcp-remote proxy.

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

• Deploy a remote MCP server without authentication
• Custom tools defined via the init() method
• Connect to Cloudflare AI Playground as a client
• Connect to Claude Desktop using mcp-remote proxy
• Uses SSE transport on Cloudflare Workers

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

• Expose MCP tools from a global edge network without auth
• Integrate custom tools into Cloudflare AI Playground
• Use remote MCP tools in Claude Desktop via a local proxy
• Rapidly prototype and deploy MCP servers on Cloudflare

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

How do I deploy the server?

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

How do I add my own MCP 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/ and enter your deployed MCP server URL (e.g., remote-mcp-server-authless.<your-account>.workers.dev/sse).

How do I connect to Claude Desktop?

Install the mcp-remote proxy (npx mcp-remote) and add the server URL to Claude Desktop’s MCP configuration under mcpServers.

Does this server require authentication?

No, this example explicitly deploys an MCP server without authentication.