Overview
What is Building a Remote MCP Server on Cloudflare (Without Auth)?
This template lets you deploy a remote MCP (Model Context Protocol) server on Cloudflare Workers that does not require authentication. It is aimed at developers who want to quickly set up a server with custom tools accessible from remote MCP clients like the Cloudflare AI Playground or local applications via a proxy.
How to use Building a Remote MCP Server on Cloudflare (Without Auth)?
Deploy by clicking the "Deploy to Workers" button or by running npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless in your terminal. Customize tools inside the init() method of src/index.ts using this.server.tool(...). Connect to the Cloudflare AI Playground by entering the deployed SSE URL, or connect Claude Desktop by configuring a mcp-remote proxy in claude_desktop_config.json.
Key features of Building a Remote MCP Server on Cloudflare (Without Auth)
- Deployable with one click or a CLI command.
- No authentication required for remote access.
- Custom tools defined via the
this.server.tool()method. - Uses SSE transport on Cloudflare Workers.
- Works with Cloudflare AI Playground as a remote client.
- Local clients can connect using the mcp-remote proxy.
Use cases of Building a Remote MCP Server on Cloudflare (Without Auth)
- Deploy a remote MCP server for AI assistants without setting up auth.
- Build and test custom tools accessible from the Cloudflare AI Playground.
- Connect Claude Desktop to a remote MCP server through a local proxy.
- Rapid prototyping of MCP‑based tools in a serverless environment.
FAQ from Building a Remote MCP Server on Cloudflare (Without Auth)
How do I deploy the server?
Use the "Deploy to Workers" button or run npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless.
How do I add custom tools?
Define each tool inside the init() method of src/index.ts by calling this.server.tool(...).
How do I connect to Cloudflare AI Playground?
Go to playground.ai.cloudflare.com, enter your deployed MCP server URL (ending in /sse), and the tools become available.
How do I connect Claude Desktop?
Install the mcp-remote npm package and configure Claude Desktop’s claude_desktop_config.json to use npx mcp-remote <your-sse-url>.
Does the server require authentication?
No, this example is explicitly designed without authentication to simplify deployment and testing.
