MCP USDA Server

What is MCP USDA Server?

MCP USDA Server is a modular MCP (Model Context Protocol) server template for fetching and formatting agricultural data from the USDA Foreign Agricultural Service (FAS) Production, Supply and Distribution (PSD) database. It provides five specialized tools that expose agricultural data to Large Language Models (LLMs) in a format optimized for LLM consumption.

How to use MCP USDA Server?

Clone the repository, install dependencies with npm install, and start the server with npm start. The server listens on port 3100 by default and communicates with an MCP client via JSON‑RPC 2.0. Tools are invoked by sending properly formatted JSON‑RPC requests (e.g., tools/execute with a tool name and arguments).

Key features of MCP USDA Server

• Five USDA data tools (regions, countries, commodities, units of measure, commodity attributes)
• Modular architecture for adding new data sources and tools
• LLM‑agnostic design (works with GPT‑4, Claude 3, Gemini, etc.)
• JSON‑RPC 2.0 communication protocol
• Anti‑hallucination guardrails built into the tool design

Use cases of MCP USDA Server

• Enabling LLMs to answer questions about agricultural production, supply, and distribution
• Building a unified MCP client that aggregates tools from multiple domain‑specific servers
• Serving as a template for creating custom MCP servers for other USDA databases or agricultural data sources