Building a Remote MCP Server on Cloudflare (Without Auth)
@WaltXin
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 project lets you deploy a remote MCP server on Cloudflare Workers without requiring authentication. It is intended for developers who want to host MCP tools at the edge and connect them to MCP clients.
How to use Building a Remote MCP Server on Cloudflare (Without Auth)?
Deploy via the "Deploy to Workers" button or by running npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless in the CLI. Customize tools in src/index.ts using this.server.tool(...). Connect to Cloudflare AI Playground by entering the SSE URL, or to Claude Desktop using the mcp-remote proxy.
Key features of Building a Remote MCP Server on Cloudflare (Without Auth)
- Deploy to Cloudflare Workers with one click or CLI.
- No authentication required for the MCP server.
- Easily add custom tools via code.
- Connect to remote MCP clients like Cloudflare AI Playground.
- Connect to local clients via mcp-remote proxy.
Use cases of Building a Remote MCP Server on Cloudflare (Without Auth)
- Hosting MCP tools on Cloudflare's global edge network.
- Testing MCP servers without implementing authentication.
- Rapid prototyping of MCP tools with instant deployment.
- Integrating MCP servers with remote AI playgrounds.
FAQ from Building a Remote MCP Server on Cloudflare (Without Auth)
What runtime dependency is required?
The server runs on Cloudflare Workers; no local runtime is needed beyond Node.js for the CLI.
Where does the MCP server live?
On Cloudflare Workers at a URL like remote-mcp-server-authless.<your-account>.workers.dev/sse.
How do I add my own tools?
Define tools in the init() method of src/index.ts using this.server.tool(...).
How do I connect Claude Desktop to this server?
Use the mcp-remote proxy (npm package) and configure Claude Desktop with a JSON entry pointing to the SSE URL.
What transport does this server use?
Server-Sent Events (SSE) over HTTP at the /sse endpoint.
Frequently asked questions
What runtime dependency is required?
The server runs on Cloudflare Workers; no local runtime is needed beyond Node.js for the CLI.
Where does the MCP server live?
On Cloudflare Workers at a URL like `remote-mcp-server-authless.<your-account>.workers.dev/sse`.
How do I add my own tools?
Define tools in the `init()` method of `src/index.ts` using `this.server.tool(...)`.
How do I connect Claude Desktop to this server?
Use the `mcp-remote` proxy (npm package) and configure Claude Desktop with a JSON entry pointing to the SSE URL.
What transport does this server use?
Server-Sent Events (SSE) over HTTP at the `/sse` endpoint.
Basic information
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