Building a Remote MCP Server on Cloudflare (Without Auth)

@zdburrage

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

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#mcp-server #cloudflare #remote-server

Config

No standard config provided

This server doesn't expose a parseable MCP config block in its README. See the repository for install instructions.

Repository

Tools

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Overview

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

This example deploys a remote MCP (Model Context Protocol) server on Cloudflare Workers without authentication. It is intended for developers who want a quick, no-frills remote MCP server to serve tools via Server-Sent Events (SSE).

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

Deploy by clicking the "Deploy to Workers" button or run npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless in your terminal. Customize tools inside the init() method of src/index.ts using this.server.tool(...). Connect to Cloudflare AI Playground by entering your deployed URL (e.g., remote-mcp-server-authless.<account>.workers.dev/sse). Connect Claude Desktop by installing the mcp-remote proxy and adding the server configuration to Claude Desktop’s settings.

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

Deployed as a Cloudflare Worker (no authentication required)
Uses SSE (Server-Sent Events) transport
Easily customizable via this.server.tool() in src/index.ts
One-click deploy from the Cloudflare Workers dashboard
Compatible with remote MCP clients via mcp-remote proxy

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

Expose custom MCP tools to the Cloudflare AI Playground
Quickly test MCP tools without setting up local infrastructure
Connect to Claude Desktop or other local MCP clients through a remote proxy
Experiment with the Model Context Protocol on Cloudflare’s edge network

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

Does this MCP server require authentication?

No. This server is intentionally built without authentication for simplicity.

How do I deploy it?

Use the "Deploy to Workers" button or run the npm create cloudflare command shown in the README. Both methods create a new Cloudflare Worker with the MCP server template.

How do I connect to Cloudflare AI Playground?

Go to https://playground.ai.cloudflare.com/, enter your deployed MCP server URL (ending in /sse), and the tools will be available in the playground.

How do I connect Claude Desktop?

Install the mcp-remote npm package. Then add a calculator (or custom name) entry to your Claude Desktop configuration with the command npx mcp-remote <your-server-url>/sse. Restart Claude.

What transport does the server use?

The server uses SSE (Server-Sent Events). The endpoint is <your-worker-url>/sse.

Frequently asked questions

Does this MCP server require authentication?

No. This server is intentionally built without authentication for simplicity.

How do I deploy it?

Use the "Deploy to Workers" button or run the `npm create cloudflare` command shown in the README. Both methods create a new Cloudflare Worker with the MCP server template.

How do I connect to Cloudflare AI Playground?

Go to https://playground.ai.cloudflare.com/, enter your deployed MCP server URL (ending in `/sse`), and the tools will be available in the playground.

How do I connect Claude Desktop?

Install the `mcp-remote` npm package. Then add a `calculator` (or custom name) entry to your Claude Desktop configuration with the command `npx mcp-remote <your-server-url>/sse`. Restart Claude.