Home / MCP registry index / link.morningbrief/magpie

Magpie — USDA Ag Markets: Grain, Fertilizer, WASDE & Export Sales

link.morningbrief/magpie in the official MCP registry. Endpoint https://ag.morningbrief.link/mcp.

The registry describes it as: USDA farm data for AI agents: grain, fertilizer, WASDE, export sales. 27 tools, free, no key.

We read its 27 tools on 2026-10-31. Nothing in them matched our tool-poisoning rules.

A clean read means these rules found nothing, not that the server is harmless. A server can change its tools at any time, which is why the index reads it again every week.

Connect it

The endpoint answers MCP over HTTP; that is how we read it. Add it to your client:

Claude Code

claude mcp add --transport http magpie https://ag.morningbrief.link/mcp

Cursor: ~/.cursor/mcp.json

{
  "mcpServers": {
    "magpie": {
      "url": "https://ag.morningbrief.link/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"magpie","type":"http","url":"https://ag.morningbrief.link/mcp"}'

Some servers ask you to sign in the first time a client connects, or want a key from the people who run them; the server's own docs say which.

Let Claude Code check servers as it adds them

With the free lazaretto-guard plugin installed, when Claude Code adds a server for you or writes one into an MCP config, the plugin reads the server's tools first and asks you if one of our rules matches. Install it, restart Claude Code, then ask it to run the command above.

Install lazaretto-guard

claude plugin marketplace add jamesdfinance-dev/lazaretto-plugins
claude plugin install lazaretto-guard@lazaretto-plugins

Tools it advertises

get_fertilizer_price get_fertilizer_history list_fertilizer_products get_grain_price get_grain_history list_grain_products get_livestock_price get_livestock_history list_livestock_products get_dairy_price get_dairy_history list_dairy_products get_crop_stats get_crop_condition get_crop_progress get_crop_condition_history get_crop_progress_history get_spreads get_wasde_projection get_wasde_history list_wasde_commodities get_export_sales get_export_sales_history list_esr_commodities get_trade_flows compare_contracts_vs_shipments list_gats_commodities

Tool changes

We compare every full read of this server with the one before. No change in what its tools say has been seen since we started keeping this record on 2026-10-30.

Fingerprint of its tools at our last full read (2026-10-31): 7f97087b76c72001. A client can hash the tools it is served the same way and compare; the full value and a hash per tool are in this page as JSON.

Run this server? Show the check in your README

The badge reflects the latest weekly read:

Markdown

[![MCP tool check](https://lazaretto.dev/mcp-registry/link-morningbrief-magpie/badge.svg)](https://lazaretto.dev/mcp-registry/link-morningbrief-magpie)

How this was checked

Lazaretto connects to the endpoint the way any MCP client does, asks the server to introduce itself and list its tools, and reads every name, description, parameter schema and server instruction for tool poisoning: hidden directive blocks, orders to read local secrets, parameters built to carry secrets or the conversation out, orders that redirect another server's tools, and invisible characters. It never calls a tool. What we found across the registry.

To run the same check every time Claude Code adds a server, install the free lazaretto-guard plugin. Browse every server in the index.