Building a Remote MCP Server on Cloudflare (Without Auth)

@aoprisan

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

No overview available yet

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "calculator": {
      "command": "npx",
      "args": [
        "mcp-remote",
        "http://localhost:8787/sse"
      ]
    }
  }
}

Tools

No tools detected

Fetch the live tool list by running this server in a temporary sandbox using the button above.

Overview

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

This example lets you deploy a remote MCP server on Cloudflare Workers that requires no authentication. It is designed for developers who want a lightweight, publicly accessible MCP endpoint for AI tool integration.

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

Deploy directly via 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. Customize tools by editing the init() method in src/index.ts. Connect clients by pointing them to the 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 on Cloudflare Workers
No authentication required for access
Exposes tools over SSE
Fully customizable tool definitions in TypeScript
Connects to Cloudflare AI Playground directly
Works with local MCP clients via mcp‑remote proxy

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

Hosting a public MCP server for AI assistants
Testing MCP tools from the Cloudflare AI Playground
Integrating remote tools into Claude Desktop via proxy
Rapid prototyping of MCP‑based services without auth overhead

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

How do I deploy the server?

Use the "Deploy to Workers" button or run the npm create command. This creates a worker at remote-mcp-server-authless.<your-account>.workers.dev/sse.

How do I add custom tools?

Define each tool inside the init() method of src/index.ts using this.server.tool(...). See the Cloudflare MCP tools documentation for details.

How do I connect to Cloudflare AI Playground?

Go to https://playground.ai.cloudflare.com/, enter your deployed SSE URL, and use the tools in the playground.

How do I connect Claude Desktop to this server?

Install the mcp-remote npm package, then add a configuration entry in Claude Desktop pointing npx mcp-remote to your server’s SSE URL. Restart Claude to see the tools.

Frequently asked questions

How do I deploy the server?

Use the "Deploy to Workers" button or run the npm create command. This creates a worker at `remote-mcp-server-authless.<your-account>.workers.dev/sse`.

How do I add custom tools?

Define each tool inside the `init()` method of `src/index.ts` using `this.server.tool(...)`. See the Cloudflare MCP tools documentation for details.

How do I connect to Cloudflare AI Playground?

Go to https://playground.ai.cloudflare.com/, enter your deployed SSE URL, and use the tools in the playground.

How do I connect Claude Desktop to this server?

Install the `mcp-remote` npm package, then add a configuration entry in Claude Desktop pointing `npx mcp-remote` to your server’s SSE URL. Restart Claude to see the tools.

Comments

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