Building a Remote MCP Server on Cloudflare (Without Auth)

@amahara-dev

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 demo/template that lets you deploy a remote MCP server on Cloudflare Workers without requiring authentication. It provides a starting point for developers who want to expose MCP tools over SSE without managing user auth.

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

Deploy using the "Deploy to Workers" button (gets a public URL like remote-mcp-server-authless.<your-account>.workers.dev/sse) or run npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless locally. Customize tools by editing src/index.ts and adding tool definitions inside the init() method with this.server.tool(...). Connect from Cloudflare AI Playground by entering your SSE URL, or from Claude Desktop using the mcp-remote proxy tool and the provided JSON configuration.

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

Deploys a remote MCP server to Cloudflare Workers
Requires no authentication for MCP connections
Customizable tools defined in TypeScript code
Connects to Cloudflare AI Playground as a remote MCP client
Connects to Claude Desktop via the mcp-remote proxy
Uses SSE (Server-Sent Events) transport

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

Quickly prototyping MCP-based tools without setting up authentication
Experimenting with remote MCP servers on Cloudflare’s edge network
Integrating custom tools with Cloudflare AI Playground for testing
Exposing MCP tools to Claude Desktop or other MCP clients via a proxy

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

Does the server require authentication?

No, this MCP server is intentionally built without authentication.

How do I deploy the server?

Click the "Deploy to Workers" button or use the npm create cloudflare command with the provided template.

How do I add my own tools?

Define each tool inside the init() method of src/index.ts by calling this.server.tool(...).

How do I connect from Cloudflare AI Playground?

Go to the AI Playground, enter your deployed MCP server’s SSE URL, and start using the tools directly.

How do I connect from Claude Desktop?

Install the mcp-remote npm package, then add a configuration entry with command: "npx", args including the remote SSE URL, and restart Claude Desktop.

Frequently asked questions

Does the server require authentication?

No, this MCP server is intentionally built without authentication.

How do I deploy the server?

Click the "Deploy to Workers" button or use the `npm create cloudflare` command with the provided template.

How do I add my own tools?

Define each tool inside the `init()` method of `src/index.ts` by calling `this.server.tool(...)`.

How do I connect from Cloudflare AI Playground?

Go to the AI Playground, enter your deployed MCP server’s SSE URL, and start using the tools directly.

How do I connect from Claude Desktop?

Install the `mcp-remote` npm package, then add a configuration entry with `command: "npx"`, args including the remote SSE URL, and restart Claude Desktop.

Comments

Basic information

More Developer Tools MCP servers

Mobbin

Mobbin MCP connects your AI agents to 600,000+ real product screens, so what they build starts with what already works.

Reelier

Maxime Houle

Agents make claims. Reelier writes receipts — record an agent's tool-call workflow once, replay it deterministically at 0 tokens, and diff runs to catch drift.

discoverGPT

Joe Monastiero

discoverGPT is visualAI's unified MCP gateway for AI commerce, exposing 29 tools across four capabilities on one canonical product catalog: trimodal search (natural-language, precise-color, and image-similarity), AI cata

Skilder.ai

skilder.ai

Run skills and MCP tools like production software: versioned, composed into roles, distributed to every agent from one governed library.

Termany

thinkany-ai

Agent-Native Terminal

174