Kossin LabsUS cattle auction prices, as JSON
USDA Market News publishes auction reports as PDFs and text. We turn them into one clean API: price per cwt, weight, head count and grade for every lot, by auction and state.
Try it now
The free demo key works right away, no sign-up:
curl -s -H "X-API-Key: kl_free_demo_2026" \
"https://api.kossinlabs.com/v1/prices?class=STEERS&state=MO&weight_min=500&weight_max=700"One row from a real Missouri feeder sale on Nov 4, 2026:
{ "auction_name": "Green City Livestock Auction", "state": "MO",
"report_date": "2026-11-04", "class_name": "STEERS",
"grade": "Medium and Large 1", "head_count": 64,
"weight_avg": 529, "price_avg": 461.94, "unit": "Per Cwt / Actual Wt" }What's in it
- Hundreds of auction reports from about 30 states, refreshed every weekday.
- History back to August 2026, growing daily.
- Filter by class, category, state, date and weight range. Every row links to the official AMS PDF.
Pricing
- Free: 100 requests a day with the demo key.
- Starter: 5,000 requests a day for $29/mo. Subscribe, and your key arrives by email within 24 hours. 30-day money-back guarantee.
New to auction reports?
Read how to read cattle auction reports for class, weight, and price per cwt with a worked example. For the cwt math alone, see cattle price per cwt. For feeder categories and weight bands, see feeder cattle prices. For cull cows and slaughter grades, see slaughter cattle prices. For bred heifers and pairs (often per head), see replacement cattle prices. For cow-calf pairs specifically, see cow-calf pair prices. For dairy-area calves and Beef Cross comments, see dairy / beef-cross calf prices. For feeder heifers vs similar-weight steers on $/cwt, see heifer prices. For feeder vs slaughter bulls, see bull prices. For a national weight-band snapshot of feeder steer prices, see feeder steer prices. For lighter feeders bought to graze (often called stockers), see stocker cattle prices. For a state-by-state snapshot of feeder steer prices, see cattle prices by state. State pages: Wyoming, South Dakota, Kansas, Nebraska, Montana, Colorado, North Dakota, Missouri, Oklahoma, Iowa, Texas, Virginia, Arkansas, Utah, New Mexico, Georgia, Alabama, Florida, Tennessee, Mississippi, North Carolina.
Commercial use and cancel
Starter subscribers may use the JSON in their own products and apps, and may redisplay prices, as long as they keep the AMS attribution line. Do not resell or republish the raw feed as a competing cattle-prices API.
Cancel anytime in Gumroad (membership). Access ends when the paid period ends. Email [email protected] to cancel or request a refund and we revoke the API key. 30-day money-back guarantee. Full wording is on our Terms.
Good to know
Prices are exactly as AMS publishes them; we only normalize the fields. Not affiliated with or endorsed by USDA. Keep the attribution line if you redisplay the data. Questions: [email protected].
Barn pages with the latest sale by weight: Joplin Regional Stockyards, Oklahoma National Stockyards, OKC West Livestock Auction, Ft. Pierre Livestock Auction, Mobridge Livestock Exchange, Ogallala Livestock Auction, Hub City Livestock Auction, Billings Livestock Commission, Valentine Livestock Auction, Winter Livestock, Torrington Livestock Auction, St. Onge Livestock Auction, Herreid Livestock Market, Stockmen's Livestock Exchange, Lexington Livestock Market.