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Building a Remote MCP Server on Cloudflare (Without Auth)

@shlomobamberger

Repository

Basic information

Category

Developer Tools

Transports

stdio

Author

shlomobamberger

About Building a Remote MCP Server on Cloudflare

No overview available yet

Building a Remote MCP Server on Cloudflare config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "calculator": {
      "command": "npx",
      "args": [
        "mcp-remote",
        "http://localhost:8787/sse"
      ]
    }
  }
}

Building a Remote MCP Server on Cloudflare tools

Tool list not available yet

This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.

Fetch the live tool list by running this server in a temporary sandbox using the button above.

Overview

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

This template lets you deploy a remote MCP (Model Context Protocol) server on Cloudflare Workers that does not require authentication. It is aimed at developers who want to quickly set up a server with custom tools accessible from remote MCP clients like the Cloudflare AI Playground or local applications via a proxy.

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

Deploy by clicking the "Deploy to Workers" button or by running 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 the Cloudflare AI Playground by entering the deployed SSE URL, or connect Claude Desktop by configuring a mcp-remote proxy in claude_desktop_config.json.

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

  • Deployable with one click or a CLI command.
  • No authentication required for remote access.
  • Custom tools defined via the this.server.tool() method.
  • Uses SSE transport on Cloudflare Workers.
  • Works with Cloudflare AI Playground as a remote client.
  • Local clients can connect using the mcp-remote proxy.

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

  • Deploy a remote MCP server for AI assistants without setting up auth.
  • Build and test custom tools accessible from the Cloudflare AI Playground.
  • Connect Claude Desktop to a remote MCP server through a local proxy.
  • Rapid prototyping of MCP‑based tools in a serverless environment.

Frequently asked questions

1

How do I deploy the server?

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

2

How do I add custom tools?

Define each tool inside the `init()` method of `src/index.ts` by calling `this.server.tool(...)`.

3

How do I connect to Cloudflare AI Playground?

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

4

How do I connect Claude Desktop?

Install the `mcp-remote` npm package and configure Claude Desktop’s `claude_desktop_config.json` to use `npx mcp-remote <your-sse-url>`.

5

Does the server require authentication?

No, this example is explicitly designed without authentication to simplify deployment and testing.

Comments

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