Building a Remote MCP Server on Cloudflare (Without Auth)

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

This starter template allows developers to deploy a remote MCP server on Cloudflare Workers without any authentication. It is designed for quickly creating and exposing custom MCP tools over SSE, compatible with clients such as Cloudflare AI Playground and Claude Desktop.

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. After deployment, add custom tools by editing src/index.ts inside the init() method with this.server.tool(...). Connect to the server via its SSE URL (e.g., remote-mcp-server-authless.<your-account>.workers.dev/sse).

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 edge reach.
• Easily add custom MCP tools in the init() method.
• Connect directly to Cloudflare AI Playground.
• Connect to Claude Desktop using the mcp-remote proxy.

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

• Expose MCP tools via a remote SSE endpoint without managing auth.
• Integrate custom tools with Cloudflare AI Playground for quick testing.
• Connect a remote MCP server to a local Claude Desktop client.
• Rapidly prototype MCP tools on a scalable edge platform.

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

What is the purpose of this server?

It provides a ready-to-deploy template for a remote MCP server on Cloudflare Workers that requires no authentication, making setup fast and simple.

How do I deploy it?

Use 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 the this.server.tool(...) syntax.

How do I connect to Cloudflare AI Playground?

Go to the playground at https://playground.ai.cloudflare.com/, enter your deployed SSE URL, and start using your MCP tools directly.

How do I connect to Claude Desktop?

Install the mcp-remote proxy via npm, then add a configuration entry in Claude Desktop’s settings that points to your SSE URL (e.g., remote-mcp-server-authless.your-account.workers.dev/sse).