Building a Remote MCP Server on Cloudflare (Without Auth)

@mythonaut

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 server lets you deploy a remote MCP server on Cloudflare Workers that requires no authentication. It provides a Server-Sent Events (SSE) endpoint for connecting MCP clients and is designed for developers who want a simple, publicly accessible MCP server for tools.

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. After deployment, customize tools by editing src/index.ts and adding them inside the init() method using this.server.tool(...). Connect to it from Cloudflare AI Playground by entering your deployed SSE URL, or from Claude Desktop using the mcp-remote proxy.

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

Deploy a remote MCP server without authentication
Runs on Cloudflare Workers with a public SSE endpoint
Easy to add custom tools via code
Connect from Cloudflare AI Playground or Claude Desktop
One-click deploy or CLI setup

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

Expose MCP tools to the Cloudflare AI Playground
Integrate MCP tools with Claude Desktop using a proxy
Prototype and test remote MCP servers without auth overhead
Deploy a lightweight serverless MCP endpoint

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

How do I deploy the MCP server?

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

Where can I find my server's URL?

After deployment, your server is available 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(...).

Can I connect this to Claude Desktop?

Yes, use the mcp-remote proxy and configure Claude Desktop with the SSE URL in the mcpServers configuration.

Does the server require any authentication?

No, this server is designed to run without authentication, as stated in the title.

Frequently asked questions

How do I deploy the MCP server?

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

Where can I find my server's URL?

After deployment, your server is available 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(...)`.

Can I connect this to Claude Desktop?

Yes, use the `mcp-remote` proxy and configure Claude Desktop with the SSE URL in the `mcpServers` configuration.

Does the server require any authentication?

No, this server is designed to run without authentication, as stated in the title.

Comments

Basic information

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