Building a Remote MCP Server on Cloudflare (Without Auth)

@jeffpress

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 is a template to deploy a remote MCP (Model Context Protocol) server without authentication on Cloudflare Workers. It serves tools over SSE and is intended for developers who want to expose MCP tools remotely.

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

Deploy via the “Deploy to Workers” button or run 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 from Cloudflare AI Playground by entering your server URL, or from Claude Desktop via the mcp-remote proxy.

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

No authentication required for the MCP server
Deploy directly to Cloudflare Workers
Exposes tools over SSE endpoint
Works with Cloudflare AI Playground
Compatible with Claude Desktop via mcp-remote proxy

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

Prototype MCP tools without setting up auth
Connect remote tools to Cloudflare AI Playground
Integrate custom tools into Claude Desktop from the cloud

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

What is the purpose of this template?

It helps you deploy a remote MCP server on Cloudflare Workers that requires no authentication, so you can quickly share tools.

How do I deploy the MCP server?

Use the "Deploy to Workers" button on the README or run the npm create cloudflare command with the provided template.

How do I add custom tools?

Define each tool inside the init() method of src/index.ts using this.server.tool(...) as shown in the Cloudflare documentation.

How can I connect this server to Claude Desktop?

Install the mcp-remote package and configure Claude’s mcpServers with the command npx mcp-remote <your-sse-url>. Restart Claude to see the tools.

Does this server use any authentication?

No, this example explicitly does not include authentication. It is intended for development or internal use.

Frequently asked questions

What is the purpose of this template?

It helps you deploy a remote MCP server on Cloudflare Workers that requires no authentication, so you can quickly share tools.

How do I deploy the MCP server?

Use the "Deploy to Workers" button on the README or run the `npm create cloudflare` command with the provided template.

How do I add custom tools?

Define each tool inside the `init()` method of `src/index.ts` using `this.server.tool(...)` as shown in the Cloudflare documentation.

How can I connect this server to Claude Desktop?

Install the `mcp-remote` package and configure Claude’s `mcpServers` with the command `npx mcp-remote <your-sse-url>`. Restart Claude to see the tools.

Does this server use any authentication?

No, this example explicitly does not include authentication. It is intended for development or internal use.

Comments

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