Building a Remote MCP Server on Cloudflare (Without Auth)

@khar20

Repository

Basic information

About Building a Remote MCP Server on Cloudflare

No overview available yet

#remote-mcp #cloudflare #server

Building a Remote MCP Server on Cloudflare config

No standard config provided

This server doesn't expose a parseable MCP config block in its README. See the repository for install instructions.

Repository

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.

We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.

Overview

What is Building a Remote MCP Server on Cloudflare (Without Auth)?

This server lets you deploy a remote MCP server with no authentication on Cloudflare Workers. It provides a Server-Sent Events (SSE) endpoint for connecting MCP clients like Cloudflare AI Playground or Claude Desktop, and allows custom tools defined in the worker code.

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

Deploy via the "Deploy to Workers" button or run 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 remote clients by providing the deployed SSE URL (e.g., remote-mcp-server-authless.<your-account>.workers.dev/sse). For Claude Desktop, use the mcp-remote proxy and configure the server in Settings > Developer > Edit Config.

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

Deployed on Cloudflare Workers
No authentication required
Customizable tools via this.server.tool()
Supports Server-Sent Events (SSE) transport
Works with Cloudflare AI Playground remotely
Connects to Claude Desktop via mcp-remote proxy

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

Provide MCP tools to Cloudflare AI Playground without a local server
Connect Claude Desktop to a cloud-hosted MCP server
Quickly prototype and share MCP tools with a public URL
Enable MCP functionality without managing authentication

Frequently asked questions

How do I deploy this MCP server?

Click the "Deploy to Workers" button from the README, or use `npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless` to create the project locally and then deploy via Wrangler.

How do I add custom tools?

Open `src/index.ts` and inside the `init()` method call `this.server.tool(...)` for each tool you want to add. Refer to Cloudflare’s MCP tools documentation for the full API.

Can I connect to Cloudflare AI Playground?

Yes. After deployment, go to https://playground.ai.cloudflare.com/, enter your server’s SSE URL (e.g., `remote-mcp-server-authless.your-account.workers.dev/sse`), and use the tools directly.

How do I connect Claude Desktop to this server?

Install the `mcp-remote` proxy package, then add the following to your Claude Desktop configuration (`claude_desktop_config.json`): ```json { "mcpServers": { "calculator": { "command": "npx", "args": ["mcp-remote", "http://localhost:8787/sse"] } } } ``` Replace the URL with your deployed server’s address. Restart Claude Desktop.

Does this server require authentication?

No. The server is explicitly built without authentication. Anyone with the SSE URL can connect to it and use its tools.

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