Building a Remote MCP Server on Cloudflare (Without Auth)

@IlanKalendarov

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)?

This template deploys a remote MCP server that requires no authentication on Cloudflare Workers. It is designed for developers who want to quickly expose MCP tools over the internet without setting up user authentication.

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

Deploy by clicking the "Deploy to Workers" button or running npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless. Customize tools in src/index.ts inside the init() method using this.server.tool(...). Connect to clients like Cloudflare AI Playground (by entering the deployed SSE URL) or Claude Desktop (via the mcp-remote proxy and the same URL).

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

Deployable to Cloudflare Workers with one click
No authentication required
Customizable tools via this.server.tool() in TypeScript
Uses Server-Sent Events (SSE) transport
Connects to Cloudflare AI Playground and local clients

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

Quickly expose MCP tools for demos or testing
Integrate custom tools with Cloudflare’s AI playground
Prototype MCP servers without building auth infrastructure
Connect local MCP clients (e.g., Claude Desktop) to remote tools via proxy

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 in your terminal.

How do I add custom 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/, enter your deployed MCP server URL (e.g., remote-mcp-server-authless.<your-account>.workers.dev/sse), and use the tools directly.

How do I connect Claude Desktop to the server?

Install the mcp-remote proxy via npm, then update your Claude Desktop configuration to run npx mcp-remote <your-server-sse-url>.

Does the server require authentication?

No, this template is specifically built to run 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` in your terminal.

How do I add custom 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/, enter your deployed MCP server URL (e.g., `remote-mcp-server-authless.<your-account>.workers.dev/sse`), and use the tools directly.

How do I connect Claude Desktop to the server?

Install the `mcp-remote` proxy via npm, then update your Claude Desktop configuration to run `npx mcp-remote <your-server-sse-url>`.

Does the server require authentication?

No, this template is specifically built to run without authentication.

Comments

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