Building a Remote MCP Server on Cloudflare (Without Auth)
@kartik71
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/example for deploying a Model Context Protocol (MCP) server on Cloudflare Workers that requires no authentication. It is intended for developers who want to quickly create a remote MCP server to expose tools via SSE.
How to use Building a Remote MCP Server on Cloudflare (Without Auth)?
Deploy by clicking the “Deploy to Workers” button or using 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 to Cloudflare AI Playground by entering your deployed SSE URL, or to Claude Desktop via 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 an SSE endpoint.
- Easy to customize with your own tools.
- One-click deploy via the “Deploy to Workers” button.
- Connectable from Cloudflare AI Playground and Claude Desktop.
Use cases of Building a Remote MCP Server on Cloudflare (Without Auth)
- Expose custom AI tools as a remote MCP server.
- Quickly prototype MCP-based workflows without setting up auth.
- Integrate MCP tools with Cloudflare’s AI Playground for testing.
- Connect remote MCP tools to local MCP clients like Claude Desktop.
FAQ from Building a Remote MCP Server on Cloudflare (Without Auth)
Does this server require authentication?
No, this example deploys a remote MCP server without authentication.
How do I deploy the server?
Click the “Deploy to Workers” button linked in the README, or run npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless.
How do I add custom tools?
Define each tool in the init() method of src/index.ts using this.server.tool(...).
How do I connect Claude Desktop to this server?
Use the mcp-remote proxy. In your Claude Desktop config, set the command to npx mcp-remote <your-SSE-URL>.
What is the default SSE URL format?
The URL is remote-mcp-server-authless.<your-account>.workers.dev/sse.
Frequently asked questions
Does this server require authentication?
No, this example deploys a remote MCP server without authentication.
How do I deploy the server?
Click the “Deploy to Workers” button linked in the README, or run `npm create cloudflare@latest -- my-mcp-server --template=cloudflare/ai/demos/remote-mcp-authless`.
How do I add custom tools?
Define each tool in the `init()` method of `src/index.ts` using `this.server.tool(...)`.
How do I connect Claude Desktop to this server?
Use the `mcp-remote` proxy. In your Claude Desktop config, set the command to `npx mcp-remote <your-SSE-URL>`.
What is the default SSE URL format?
The URL is `remote-mcp-server-authless.<your-account>.workers.dev/sse`.
Basic information
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