Remote Calculator FastMCP Server

A Model Context Protocol (MCP) server built with FastMCP specifically configured to run remotely over HTTP / SSE (Server-Sent Events).

Remote MCP clients (e.g., Claude Desktop, Cursor, LibreChat, Open WebUI, and custom MCP clients) can connect to this server across the network or internet.

🛠 Available Tools

Related MCP server: Math Operations MCP Server

🚀 Running the Remote Server

Option 1: Direct Run (FastMCP Runner)

Runs on all network interfaces (0.0.0.0) by default on port 8000:

uv run python main.py

Option 2: Production ASGI Server (Uvicorn)

The Starlette ASGI application app is exported in main.py:

uv run uvicorn main:app --host 0.0.0.0 --port 8000

Option 3: Using the FastMCP CLI

uv run fastmcp run main.py --transport sse --host 0.0.0.0 --port 8000

⚙️ Configuration (Environment Variables)

🔌 Connecting Remote MCP Clients

1. Connecting via SSE (Recommended for Remote Clients)

• Endpoint URL: http://<SERVER_IP_OR_DOMAIN>:8000/sse

Example client configuration (e.g., Claude Desktop / Cursor / LibreChat):

{
  "mcpServers": {
    "remote-calculator": {
      "url": "http://your-server-ip:8000/sse"
    }
  }
}

2. Connecting via Streamable HTTP

If using MCP_TRANSPORT=http:

• Endpoint URL: http://<SERVER_IP_OR_DOMAIN>:8000/mcp