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Building a Remote MCP Server on Cloudflare (Without Auth)

@IlanKalendarov

Repository

Basic information

Category

Developer Tools

Transports

stdio

Author

IlanKalendarov

About Building a Remote MCP Server on Cloudflare

No overview available yet

#remote-mcp#cloudflare#mcp-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 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

Frequently asked questions

1

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.

2

How do I add custom tools?

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

3

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.

4

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>`.

5

Does the server require authentication?

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

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