Building a Remote MCP Server on Cloudflare (Without Auth)

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

This example allows you to deploy a remote MCP server that does not require authentication on Cloudflare Workers. It is intended for developers who want to quickly host MCP tools over SSE.

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

Deploy using 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 or local clients via the mcp-remote proxy.

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

• Deploy a remote MCP server without auth on Cloudflare Workers
• Customize tools inside the init() method
• Connect from Cloudflare AI Playground (remote MCP client)
• Connect from Claude Desktop via mcp-remote proxy
• Uses SSE transport

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

• Hosting MCP tools remotely without authentication
• Integrating MCP tools with Cloudflare AI Playground
• Connecting remote MCP servers to local clients like Claude Desktop
• Quickly prototyping MCP servers on Cloudflare Workers

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

How do I deploy the MCP server?

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

How do I customize the MCP tools?

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

How do I connect from Cloudflare AI Playground?

Go to https://playground.ai.cloudflare.com/, enter your deployed MCP server URL (ending in /sse), and use the tools directly.

How do I connect from Claude Desktop?

Use the mcp-remote proxy and configure Claude Desktop's mcpServers with command npx and args ["mcp-remote", "<URL>/sse"]. Restart Claude to see the tools.

Does this MCP server require authentication?

No, this example is specifically deployed without authentication.