Building a Remote MCP Server on Cloudflare (Without Auth)

@zaki-yama-labs

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

No overview available yet

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)?

A deployment template for creating a remote MCP (Model Context Protocol) server on Cloudflare Workers that does not require authentication. It is intended for developers who want to expose MCP tools over SSE without handling user access controls.

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 inside the init() method of src/index.ts by calling this.server.tool(...). Connect to the deployed URL (e.g., remote-mcp-server-authless.<your-account>.workers.dev/sse) from remote MCP clients.

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

Deploy a remote MCP server with zero authentication required
Add custom MCP tools defined in src/index.ts
Connect directly from Cloudflare AI Playground
Connect from Claude Desktop using the mcp-remote proxy
Uses Cloudflare Workers for serverless hosting

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

Quickly expose MCP tools to AI clients without building auth infrastructure
Prototype and test MCP tools using Cloudflare AI Playground
Integrate remote MCP tools into local environments like Claude Desktop

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

How do I deploy the server?

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.

How do I add my own tools?

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

Can I connect to Cloudflare AI Playground?

Yes. Go to https://playground.ai.cloudflare.com/, enter your deployed MCP server URL (ending in /sse), and then use your tools directly.

How do I connect Claude Desktop to this server?

Install the mcp-remote npm package, then configure Claude Desktop’s mcpServers with "command": "npx", "args": ["mcp-remote", "<your-server-url>/sse"]. Restart Claude to see the tools.

Does the server require authentication?

No. This template deliberately omits authentication. All requests are accepted without credentials.

Frequently asked questions

How do I deploy the server?

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.

How do I add my own tools?

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

Can I connect to Cloudflare AI Playground?

Yes. Go to https://playground.ai.cloudflare.com/, enter your deployed MCP server URL (ending in `/sse`), and then use your tools directly.

How do I connect Claude Desktop to this server?

Install the `mcp-remote` npm package, then configure Claude Desktop’s `mcpServers` with `"command": "npx", "args": ["mcp-remote", "<your-server-url>/sse"]`. Restart Claude to see the tools.

Does the server require authentication?

No. This template deliberately omits authentication. All requests are accepted without credentials.

Comments

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