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Building a Remote MCP Server on Cloudflare (Without Auth)

@jbw1991

Repository

Basic information

Category

Developer Tools

Transports

stdio

Author

jbw1991

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",
        "remote-mcp-server-authless.your-account.workers.dev/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 allows you to deploy a remote MCP server that doesn't require authentication on Cloudflare Workers.

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

Deploy with the Cloudflare Deploy button, or run npm create cloudflare@latest my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless locally. Customize tools in src/index.ts inside the init() method using this.server.tool(...). Connect to your deployed server URL (e.g., remote-mcp-server-authless.<account>.workers.dev/sse) from Cloudflare AI Playground or local MCP clients via the mcp-remote proxy.

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

  • Deploys to Cloudflare Workers without authentication.
  • Customizable MCP tools defined in TypeScript.
  • Connects to Cloudflare AI Playground as a remote client.
  • Connects to Claude Desktop via the mcp-remote proxy.
  • Quick deploy using the Cloudflare Deploy button or CLI.

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

  • Deploy a remote MCP server that requires no user authentication.
  • Expose custom MCP tools from the cloud without managing infrastructure.
  • Prototype or demo MCP integrations with minimal setup overhead.
  • Connect cloud-hosted MCP tools to desktop AI clients.

Frequently asked questions

1

How do I deploy the MCP server?

Click the "Deploy to Workers" button or run the `npm create cloudflare` command with the provided template.

2

How do I customize the tools?

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

3

How can I connect to the Cloudflare AI Playground?

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

4

How do I connect Claude Desktop to this MCP server?

Install the `mcp-remote` proxy, then in Claude Desktop Settings > Developer > Edit Config, add an entry that runs `npx mcp-remote <your-server-url>/sse`.

5

Does the server require authentication?

No, this template deploys a remote MCP server that explicitly does not require authentication.

Comments

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