Building a Remote MCP Server on Cloudflare (Without Auth)

@Jobikinobi

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

No overview available yet

#remote-mcp-server #cloudflare #mcp-server

Config

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

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

Tools

No tools detected

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 server allows you to deploy a remote Model Context Protocol (MCP) server without authentication on Cloudflare Workers. It is intended for developers who want to expose MCP tools over SSE (Server-Sent Events) from a globally distributed edge network.

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. Customize tools by editing src/index.ts and adding this.server.tool(...) inside the init() method. Connect to Cloudflare AI Playground or local clients like Claude Desktop via the mcp-remote proxy.

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

Deploy a remote MCP server without authentication
Custom tools defined via the init() method
Connect to Cloudflare AI Playground as a client
Connect to Claude Desktop using mcp-remote proxy
Uses SSE transport on Cloudflare Workers

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

Expose MCP tools from a global edge network without auth
Integrate custom tools into Cloudflare AI Playground
Use remote MCP tools in Claude Desktop via a local proxy
Rapidly prototype and deploy MCP servers on Cloudflare

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

How do I deploy the server?

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

How do I add my own MCP tools?

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

How do I connect to Cloudflare AI Playground?

Go to https://playground.ai.cloudflare.com/ and enter your deployed MCP server URL (e.g., remote-mcp-server-authless.<your-account>.workers.dev/sse).

How do I connect to Claude Desktop?

Install the mcp-remote proxy (npx mcp-remote) and add the server URL to Claude Desktop’s MCP configuration under mcpServers.

Does this server require authentication?

No, this example explicitly deploys an MCP server without authentication.

Frequently asked questions

How do I deploy the server?

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

How do I add my own MCP tools?

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

How do I connect to Cloudflare AI Playground?

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

How do I connect to Claude Desktop?

Install the mcp-remote proxy (`npx mcp-remote`) and add the server URL to Claude Desktop’s MCP configuration under `mcpServers`.

Does this server require authentication?

No, this example explicitly deploys an MCP server without authentication.

Comments

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