FarmlandUSDA land data
Farmland publishes the USDA's annual land numbers — what farmland is worth and what it rents for — as simple JSON feeds and the free lookup tools below, covering all 50 states. No key, no signup.
Checking the API…
Use the Farmland API
Free JSON, no key. Endpoints and parameters are in the Farmland docs.
curl "https://land.morningbrief.link/v1/land/values?state=IL&year=2026"