Building a Remote MCP Server on Cloudflare (Without Auth)

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

A server that deploys a remote MCP (Model Context Protocol) server on Cloudflare Workers without requiring authentication. It is intended for developers who want to expose MCP tools over SSE (Server-Sent Events) using Cloudflare's edge infrastructure.

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

Deploy by clicking the "Deploy to Workers" button or run npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless in the terminal. After deployment, add custom tools inside the init() method of src/index.ts using this.server.tool(...). Connect clients by providing the SSE endpoint (e.g., remote-mcp-server-authless.<account>.workers.dev/sse).

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

• Zero‑auth remote MCP server deployment on Cloudflare Workers.
• SSE‑based transport for remote MCP clients.
• Custom tools defined via this.server.tool(...).
• One‑click deploy or CLI scaffolding from official template.
• Works with Cloudflare AI Playground (remote MCP client).
• Compatible with local clients via mcp-remote proxy.

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

• Expose custom MCP tools to remote clients without managing authentication.
• Rapidly prototype MCP‑based functionalities on Cloudflare’s edge.
• Connect Cloudflare AI Playground to custom tooling.
• Integrate tools with Claude Desktop via the mcp-remote proxy.

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

What does this server do?

It deploys a remote MCP server on Cloudflare Workers that uses SSE (Server‑Sent Events) transport and does not require authentication.

How do I deploy it?

Click the "Deploy to Workers" button or use npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless in your terminal.

How do I add custom tools?

Edit src/index.ts and define each tool inside the init() method using this.server.tool(...).

Where can I connect this MCP server?

Connect from Cloudflare AI Playground (https://playground.ai.cloudflare.com/) or from local clients like Claude Desktop using the mcp-remote proxy.

What are the runtime requirements?

A Cloudflare account and Node.js with npm (for CLI deployment). The server runs on Cloudflare Workers with no additional dependencies beyond the template.