Building a Remote MCP Server on Cloudflare (Without Auth)

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

This is a template to deploy a remote Model Context Protocol (MCP) server on Cloudflare Workers without requiring authentication. It is intended for developers who want to expose MCP tools over SSE with minimal setup.

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

Deploy instantly via the "Deploy to Workers" button or run npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless. Then customize tools by editing src/index.ts using this.server.tool(...). Connect from Cloudflare AI Playground (enter the deployed /sse URL) or from Claude Desktop using the mcp-remote proxy.

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

• Deployable to Cloudflare Workers with one click
• No authentication required on the MCP server
• Provides an SSE endpoint for remote connections
• Fully customizable tools in src/index.ts
• Works with Cloudflare AI Playground and Claude Desktop

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

• Host MCP tools for AI agents without managing authentication
• Quickly test MCP integrations via Cloudflare AI Playground
• Connect a remote MCP server to Claude Desktop using mcp-remote
• Prototype custom MCP tools with minimal deployment overhead

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

How do I deploy this MCP 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 MCP tools?

Define each tool inside the init() method of src/index.ts using this.server.tool(...). Refer to the Cloudflare documentation for tool definitions.

How can I connect to this server from 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 start using your tools.

How do I connect Claude Desktop to this remote MCP server?

Install mcp-remote via npm, then add an entry to your Claude Desktop configuration (claude_desktop_config.json) with "command": "npx", "args" including "mcp-remote" and your server’s SSE URL.

What runtime or dependencies does this server require?

It runs on Cloudflare Workers; no local runtime is needed after deployment. Development requires Node.js for npm create. No authentication is configured on the server.