Building a Remote MCP Server on Cloudflare (Without Auth)

@RealQuant-Inc

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About Building a Remote MCP Server on Cloudflare (Without Auth)

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Overview

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

This example deploys a remote MCP server without authentication on Cloudflare Workers. It is intended for developers who want to quickly create a server that exposes tools over SSE, accessible from remote 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 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 the server via its SSE URL (e.g., remote-mcp-server-authless.<your-account>.workers.dev/sse).

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

Deploy a remote MCP server without authentication
Easily customise tools in src/index.ts
Connect to Cloudflare AI Playground as a remote client
Connect local clients like Claude Desktop via mcp-remote proxy
One‑click deploy to Cloudflare Workers

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

Quickly prototype MCP tools without managing auth
Integrate MCP tools into Cloudflare AI Playground
Use remote MCP tools from Claude Desktop
Build a public tool server for demos and testing

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

How do I deploy the server?

Click the “Deploy to Workers” button or run npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless from the command line.

How do I add my own tools?

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

How do I connect to Cloudflare AI Playground?

Go to playground.ai.cloudflare.com, enter your deployed SSE URL, and start using the tools.

How do I connect Claude Desktop to this server?

Install the mcp-remote proxy, then in Claude Desktop Settings > Developer > Edit Config, add a server entry with "command": "npx" and args including "mcp-remote" and the SSE URL.

Does this server require authentication?

No – the server is explicitly built without authentication. It is intended for environments where auth is not needed.

Frequently asked questions

How do I deploy the server?

Click the “Deploy to Workers” button or run `npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless` from the command line.

How do I add my own tools?

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

How do I connect to Cloudflare AI Playground?

Go to [playground.ai.cloudflare.com](https://playground.ai.cloudflare.com/), enter your deployed SSE URL, and start using the tools.

How do I connect Claude Desktop to this server?

Install the `mcp-remote` proxy, then in Claude Desktop Settings > Developer > Edit Config, add a server entry with `"command": "npx"` and args including `"mcp-remote"` and the SSE URL.

Does this server require authentication?

No – the server is explicitly built without authentication. It is intended for environments where auth is not needed.

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