Building a Remote MCP Server on Cloudflare (Without Auth)

@mia303

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About Building a Remote MCP Server on Cloudflare (Without Auth)

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Overview

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

This project lets you deploy a remote MCP server on Cloudflare Workers that requires no authentication. It is intended for developers who want a quick, publicly accessible MCP endpoint without implementing 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. Customize tools inside src/index.ts using this.server.tool(...). Connect to the Cloudflare AI Playground by entering your deployed URL (<account>.workers.dev/sse). For local MCP clients like Claude Desktop, use the mcp-remote proxy pointing to the same SSE endpoint.

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

One‑click deploy to Cloudflare Workers
No authentication required
Add custom tools via this.server.tool()
Connects to Cloudflare AI Playground
Works with local clients via mcp-remote proxy

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

Quickly prototyping MCP tools without setting up auth
Serving MCP endpoints to remote AI agents (e.g., Cloudflare Playground)
Integrating with Claude Desktop using the mcp‑remote proxy

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

How do I deploy this server?

Use the “Deploy to Workers” button or run npm create cloudflare@latest with the provided template.

How do I add custom tools?

Define each tool inside the init() method of src/index.ts using this.server.tool(...). Refer to Cloudflare’s MCP tools documentation for details.

How do I connect to the Cloudflare AI Playground?

Go to https://playground.ai.cloudflare.com/, enter your deployed MCP server URL (<account>.workers.dev/sse), and start using the tools.

How do I connect to Claude Desktop?

Install the mcp-remote npm package, then add a configuration entry in Claude Desktop pointing to your server’s SSE URL (e.g., http://localhost:8787/sse or the remote URL).

Frequently asked questions

How do I deploy this server?

Use the “Deploy to Workers” button or run `npm create cloudflare@latest` with the provided template.

How do I add custom tools?

Define each tool inside the `init()` method of `src/index.ts` using `this.server.tool(...)`. Refer to Cloudflare’s MCP tools documentation for details.

How do I connect to the Cloudflare AI Playground?

Go to https://playground.ai.cloudflare.com/, enter your deployed MCP server URL (`<account>.workers.dev/sse`), and start using the tools.

How do I connect to Claude Desktop?

Install the `mcp-remote` npm package, then add a configuration entry in Claude Desktop pointing to your server’s SSE URL (e.g., `http://localhost:8787/sse` or the remote URL).