Remote MCP Server on Cloudflare

What is Remote MCP Server on Cloudflare?

Remote MCP Server on Cloudflare helps you quickly deploy a remote MCP server on Cloudflare Workers with built-in OAuth login. It is intended for developers who want to expose Model Context Protocol (MCP) tools—like a math tool—over HTTP/S using SSE transport.

How to use Remote MCP Server on Cloudflare?

Clone the repository, install dependencies with npm install, and run locally with npx nx dev remote-mcp-server. To deploy, create a KV namespace with npx wrangler kv namespace create OAUTH_KV, add its ID to wrangler.jsonc, then run npm run deploy. Connect clients by pointing an MCP inspector or Claude Desktop (via the mcp-remote proxy) to the server’s /sse endpoint.

Key features of Remote MCP Server on Cloudflare

• Deploy as a Cloudflare Worker
• OAuth login for secure access
• SSE transport for MCP communication
• Easy local development with Nx
• Pre‑defined tools (e.g., math tool)

Use cases of Remote MCP Server on Cloudflare

• Let Claude Desktop call custom MCP tools remotely
• Prototype MCP servers with minimal infrastructure
• Share MCP tools across devices via a public URL
• Authenticate users with OAuth before tool access

FAQ from Remote MCP Server on Cloudflare

How do I run the server locally?

Clone the repo, run npm install, then execute npx nx dev remote-mcp-server. The server will be available at http://localhost:8787/.

How do I deploy to Cloudflare?

Create a KV namespace with npx wrangler kv namespace create OAUTH_KV, add the ID to wrangler.jsonc, then run npm run deploy. The server will be live at a workers.dev URL.

How do I connect Claude Desktop?

Add a configuration entry in Claude Desktop’s config file that uses npx mcp-remote with the server’s /sse URL (e.g., https://worker-name.account-name.workers.dev/sse).

How do I test with the MCP Inspector?

Start the inspector with npx @modelcontextprotocol/inspector, switch transport to SSE, enter the server URL plus /sse, and click Connect. A mock login screen will appear; input any email and password.

What transport protocol does the server use?

The server uses Server‑Sent Events (SSE) for MCP communication, as shown in the inspector’s “Transport Type” setting.