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Building a Remote MCP Server on Cloudflare (Without Auth)

@dturkuler

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

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Config

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Overview

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

A template for deploying a remote MCP (Model Context Protocol) server on Cloudflare Workers that requires no authentication. It provides an SSE endpoint and allows developers to define custom tools.

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

Deploy via the provided "Deploy to Workers" button or by running npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless. Customize tools inside src/index.ts using this.server.tool(...).

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

  • Deployed fully on Cloudflare Workers.
  • No authentication required for remote access.
  • SSE-based MCP endpoint.
  • Tool definitions added in JavaScript/TypeScript.
  • One-click deploy from GitHub template.
  • Compatible with remote MCP clients via mcp-remote proxy.

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

  • Exposing custom MCP tools without setting up authentication.
  • Connecting MCP tools to Cloudflare AI Playground.
  • Using MCP tools from Claude Desktop via a remote proxy.
  • Rapid prototyping of MCP servers on Cloudflare’s edge.

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

How do I deploy this MCP server?

You can use the "Deploy to Workers" button or run the npm create cloudflare command with the template URL provided in the README.

Does this server require authentication?

No, the server is explicitly designed to be deployed without authentication.

How do I add my own tools?

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

How do I connect to Cloudflare AI Playground?

Go to https://playground.ai.cloudflare.com/, enter your deployed MCP server URL (e.g., remote-mcp-server-authless.<your-account>.workers.dev/sse), and start using your tools.

How do I connect Claude Desktop to this remote server?

Use the mcp-remote proxy in your Claude Desktop configuration: set command to npx and args to ["mcp-remote", "<your-server-url>/sse"]. Restart Claude.

Frequently asked questions

How do I deploy this MCP server?

You can use the "Deploy to Workers" button or run the `npm create cloudflare` command with the template URL provided in the README.

Does this server require authentication?

No, the server is explicitly designed to be deployed without authentication.

How do I add my own tools?

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

How do I connect to Cloudflare AI Playground?

Go to https://playground.ai.cloudflare.com/, enter your deployed MCP server URL (e.g., `remote-mcp-server-authless.<your-account>.workers.dev/sse`), and start using your tools.

How do I connect Claude Desktop to this remote server?

Use the `mcp-remote` proxy in your Claude Desktop configuration: set `command` to `npx` and args to `["mcp-remote", "<your-server-url>/sse"]`. Restart Claude.

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Basic information

Category

Developer Tools

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Author

dturkuler

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