Building a Remote MCP Server on Cloudflare (Without Auth)

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

This is a template and deployment guide for creating a remote Model Context Protocol (MCP) server on Cloudflare Workers with no authentication required. It is intended for developers who want to quickly expose custom MCP tools via a serverless endpoint.

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

Deploy the server using the one‑click “Deploy to Workers” button or by cloning the repository and running npx wrangler deploy. Customize MCP tools inside src/index.ts using this.server.tool(...). Manage production secrets with Cloudflare’s encrypted variables via wrangler secret put or the dashboard; use a local .dev.vars file for development.

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

• One‑click deployment to Cloudflare Workers.
• No authentication required on the server.
• Custom MCP tools defined in TypeScript.
• Secure secret management with Cloudflare encrypted variables.
• Local development secrets via .dev.vars.
• Connectable to Cloudflare AI Playground or Claude Desktop via mcp-remote proxy.

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

• Rapid prototyping of MCP tools on serverless infrastructure.
• Exposing custom MCP endpoints to internal or demo clients without auth.
• Integrating MCP tools with Cloudflare AI Playground.
• Connecting MCP tools to Claude Desktop using a remote proxy.

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

What is the purpose of this server?

It provides a turnkey template for deploying a remote MCP server on Cloudflare Workers without authentication, simplifying setup for development and internal use.

How do I deploy it?

You can use the “Deploy to Workers” button on the README or clone the repository, install dependencies, log in to Cloudflare with npx wrangler login, and run npx wrangler deploy.

How do I manage API keys or secrets?

For production, use wrangler secret put YOUR_SECRET_NAME or add encrypted environment variables in the Cloudflare dashboard. For local development, create a .dev.vars file with your secrets (do not commit it to Git).

Can I connect this MCP server to Claude Desktop?

Yes. Use the mcp-remote npm package as a proxy and configure Claude Desktop’s MCP servers to point to your deployed URL (e.g., remote-mcp-server-authless.<your-account>.workers.dev/sse).