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Building a Remote MCP Server on Cloudflare (Without Auth)

@ashaney

Repository

Basic information

Category

Developer Tools

Transports

stdio

Author

ashaney

About Building a Remote MCP Server on Cloudflare

No overview available yet

#remote-mcp#cloudflare#server

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 example deploys a remote MCP server that requires no authentication on Cloudflare Workers. It is intended for developers who want to quickly host and connect MCP tools from Cloudflare's edge network.

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. Customize tools inside the init() method of src/index.ts using this.server.tool(...). Connect from Cloudflare AI Playground by entering the deployed SSE URL, or from Claude Desktop by configuring the mcp-remote proxy in your MCP settings.

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

  • Deploy to Cloudflare Workers with one click
  • No authentication required on the server
  • Customizable by adding tools in src/index.ts
  • Supports SSE transport
  • Works with remote MCP clients via mcp-remote proxy

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

  • Quickly deploy a remote MCP server on Cloudflare's edge
  • Connect MCP tools to Cloudflare AI Playground for testing
  • Integrate a remote MCP server with Claude Desktop locally

Frequently asked questions

1

What does this MCP server do?

It hosts a remote MCP server on Cloudflare Workers without authentication, allowing you to define and expose custom tools over SSE.

2

How do I deploy this MCP server?

Either use the "Deploy to Workers" button on the README, or run `npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless` in your terminal.

3

How can I customize the MCP tools?

Add each tool inside the `init()` method of `src/index.ts` using `this.server.tool(...)`.

4

How do I connect this MCP server to Cloudflare AI Playground?

Go to https://playground.ai.cloudflare.com/, enter your deployed SSE URL (e.g., `remote-mcp-server-authless.<your-account>.workers.dev/sse`), and you can use the tools directly.

5

How do I connect this MCP server to Claude Desktop?

Install the mcp-remote proxy, then add a configuration entry in Claude Desktop's MCP settings pointing to your server's SSE URL (local or remote). Restart Claude to see the tools.

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