Building a Remote MCP Server on Cloudflare (Without Auth)
@rosedael
About Building a Remote MCP Server on Cloudflare (Without Auth)
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Config
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Overview
What is Building a Remote MCP Server on Cloudflare (Without Auth)?
This example deploys a remote MCP (Model Context Protocol) server on Cloudflare Workers that requires no authentication. It is intended for developers who want to host MCP tools in a serverless environment and connect them to MCP clients like Cloudflare AI Playground or Claude Desktop.
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. Customize tools inside the init() method of src/index.ts using this.server.tool(...). Connect to Cloudflare AI Playground or local clients via the mcp-remote proxy.
Key features of Building a Remote MCP Server on Cloudflare (Without Auth)
- Deploy a remote MCP server without authentication
- Built on Cloudflare Workers for serverless hosting
- Add custom MCP tools in
src/index.ts - Connect to Cloudflare AI Playground as a remote client
- Connect to Claude Desktop via
mcp-remoteproxy
Use cases of Building a Remote MCP Server on Cloudflare (Without Auth)
- Host a public MCP server for testing or demonstration
- Provide MCP tools accessible from Cloudflare AI Playground
- Integrate remote MCP tools with Claude Desktop using a proxy
FAQ from Building a Remote MCP Server on Cloudflare (Without Auth)
What dependencies or runtime are required?
The server runs on Cloudflare Workers. Local development requires Node.js and npm. No additional authentication dependencies.
How do I add custom tools?
Define each tool inside the init() method of src/index.ts using this.server.tool(...).
How do I connect to Cloudflare AI Playground?
Go to https://playground.ai.cloudflare.com/ and enter your deployed MCP server URL (e.g., remote-mcp-server-authless.<your-account>.workers.dev/sse).
How do I connect to Claude Desktop?
Use the mcp-remote proxy. In the Claude Desktop config, set the command to npx mcp-remote <your-mcp-server-url/sse>.
What transport does this server use?
It uses SSE (Server-Sent Events) at the /sse endpoint.
Frequently asked questions
What dependencies or runtime are required?
The server runs on Cloudflare Workers. Local development requires Node.js and npm. No additional authentication dependencies.
How do I add custom tools?
Define each tool inside the `init()` method of `src/index.ts` using `this.server.tool(...)`.
How do I connect to Cloudflare AI Playground?
Go to https://playground.ai.cloudflare.com/ and enter your deployed MCP server URL (e.g., `remote-mcp-server-authless.<your-account>.workers.dev/sse`).
How do I connect to Claude Desktop?
Use the `mcp-remote` proxy. In the Claude Desktop config, set the command to `npx mcp-remote <your-mcp-server-url/sse>`.
What transport does this server use?
It uses SSE (Server-Sent Events) at the `/sse` endpoint.
Basic information
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