Building a Remote MCP Server on Cloudflare (Without Auth)
@John-Selvinraj
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)?
This example lets you deploy a remote MCP server that does not require authentication on Cloudflare Workers. It is intended for developers who want a quick way to host an MCP server accessible over SSE.
How to use Building a Remote MCP Server on Cloudflare (Without Auth)?
Deploy by clicking the "Deploy to Workers" button or running npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless. After deployment, the server is available at a URL like remote-mcp-server-authless.<your-account>.workers.dev/sse. Customize tools by editing src/index.ts using this.server.tool(...) in the init() method.
Key features of Building a Remote MCP Server on Cloudflare (Without Auth)
- Deploy a remote MCP server without authentication.
- Uses Cloudflare Workers for serverless hosting.
- Exposes an SSE endpoint at
/sse. - Supports custom tool definitions via code.
- Compatible with Cloudflare AI Playground and Claude Desktop.
Use cases of Building a Remote MCP Server on Cloudflare (Without Auth)
- Quickly stand up a remote MCP server for testing or prototyping.
- Integrate MCP tools with Cloudflare AI Playground.
- Connect Claude Desktop to a remote MCP server using the mcp-remote proxy.
FAQ from Building a Remote MCP Server on Cloudflare (Without Auth)
How do I deploy the server?
Use the "Deploy to Workers" button on GitHub or run the npm create cloudflare@latest 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(...).
How do I connect to Cloudflare AI Playground?
Go to https://playground.ai.cloudflare.com/, enter your server URL (ending in /sse), and use your MCP tools directly.
How do I connect Claude Desktop to the server?
Install the mcp-remote proxy, then add a configuration entry in Claude Desktop pointing to your server’s SSE URL.
What is the deployed server URL format?
It follows the pattern remote-mcp-server-authless.<your-account>.workers.dev/sse.
Frequently asked questions
How do I deploy the server?
Use the "Deploy to Workers" button on GitHub or run the `npm create cloudflare@latest` 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(...)`.
How do I connect to Cloudflare AI Playground?
Go to https://playground.ai.cloudflare.com/, enter your server URL (ending in `/sse`), and use your MCP tools directly.
How do I connect Claude Desktop to the server?
Install the `mcp-remote` proxy, then add a configuration entry in Claude Desktop pointing to your server’s SSE URL.
What is the deployed server URL format?
It follows the pattern `remote-mcp-server-authless.<your-account>.workers.dev/sse`.
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