Embed tools and data feeds

AGSIST publishes embeddable agricultural tools and open JSON market-data feeds for ag media, extension services, co-ops, and farm websites. Add a widget with one script, or read the feeds and build your own display.

Two tools are live: the GDU calculator and the ARC or PLC calculator. Both load from a single file: https://agsist.com/embed.js. Add the script once, then drop a data-agsist-widget div wherever you want a tool. The script injects the live tool in an iframe, adds a crawlable “Powered by AGSIST” link in your page, and resizes the frame to fit. Prefer a plain iframe? Each tool below has one ready to copy.

Embeddable widgets

Run a co-op, elevator, ag-retail or extension site? Copy a snippet, paste it into your page, and your visitors get the live tool. It's free and needs no account or API key.

GDU Calculator Live

Adds up growing degree units from a planting date and location, tracks corn and soybean stage, projects black layer, and flags first-frost risk.

Option A: iframe (simplest)

<iframe src="https://agsist.com/embed/gdu"
  title="AGSIST GDU Calculator"
  style="width:100%;max-width:480px;height:560px;border:0"
  loading="lazy"></iframe>
<p style="font:600 11px sans-serif;text-align:right;max-width:480px">
  <a href="https://agsist.com/gdu-calculator">Powered by AGSIST</a>
</p>

Option B: script (resizes itself, adds the link for you)

<div data-agsist-widget="gdu"></div>
<script async src="https://agsist.com/embed.js"></script>

Live preview

ARC or PLC, 2026 and 2027 Live

Farmers pick a crop and county, type their PLC yield and a price, and see which program pays more per base acre across a range of prices and county yields. Uses the 2026 and 2027 effective reference prices and FSA’s official county benchmark yields from agsist.com/arc-plc.

Option A: iframe (simplest)

<iframe src="https://agsist.com/embed/arc-plc"
  title="AGSIST ARC or PLC calculator"
  style="width:100%;max-width:720px;height:1100px;border:0"
  loading="lazy"></iframe>
<p style="font:600 11px sans-serif;text-align:right;max-width:720px">
  <a href="https://agsist.com/arc-plc">ARC or PLC calculator by AGSIST</a>
</p>

Start it on one county, crop or year by adding to the iframe address: ?st=WI&fips=55017 (two-letter state and the five-digit county FIPS code), &crop=soybeans (corn, soybeans, wheat, sorghum, barley, oats, peanuts and every other crop on the calculator’s list), and &year=2027 (2026 or 2027). For example https://agsist.com/embed/arc-plc?st=WI&fips=55017&crop=corn&year=2026.

Option B: script (resizes itself, adds the link for you)

<div data-agsist-widget="arc-plc"></div>
<script async src="https://agsist.com/embed.js"></script>

The script places a “Powered by AGSIST” link in your page, and the iframe snippet carries the same link under it. Please keep it; links like that are how people find the site. Nothing tracks your visitors beyond standard, anonymized usage stats on the tool itself. Problem with a widget? Email sig@agsist.com.

Data feeds

These JSON files update on their own schedule. Read them directly if you'd rather build your own display than use the widget.

GET https://agsist.com/data/prices.json

Delayed futures prices for grains, oilseeds, livestock, Class III milk, cotton, rice, energy and metals, plus the Dollar Index, 10-yr Treasury, S&P 500 and a few crypto quotes (Bitcoin, XRP, Kaspa). Most keys also have dated contracts (corn-dec26, corn-dec27 and so on). Updated about every 15 minutes while futures markets trade, Sunday evening to Friday afternoon. Grain prices are in cents per bushel. Divide by 100 for dollar display.

{
  "fetched": "2026-09-25T22:55:59Z",
  "quotes": {
    "corn": { "ticker": "ZC=F", "close": 528.75, "open": 519.75, "netChange": 9.0, "pctChange": 1.7316, "wk52_hi": 544.5, "wk52_lo": 398.5 },
    "beans": { "ticker": "ZS=F", "close": 1320.0, "open": 1305.5, "netChange": 14.5, "pctChange": 1.1107, "wk52_hi": 1332.25, "wk52_lo": 993.75 },
    "crude": { "ticker": "CL=F", "close": 92.44, "open": 93.12, "netChange": -0.68, "pctChange": -0.7302, "wk52_hi": 119.48, "wk52_lo": 54.98 }
    // ... one object per key: wheat, cattle, hogs, natgas, gold, and the rest
  }
}
GET https://agsist.com/data/daily.json

Today's AGSIST Daily briefing in JSON. Generated from live market data and agricultural news feeds. Rebuilt each morning, every day of the week. Use this to build a daily market headline block for any ag-facing page.

{
  "date":     "Saturday, September 26, 2026",
  "headline": "GRAINS CLIMB FRIDAY, CATTLE STALL BEFORE COF WEEK",
  "lead":     "Corn closed Friday at $5.29, up 1.7% on the week's last session, and w ...",
  "locked_prices": { "corn": 5.2875, "beans": 13.2, ... },
  "generated_at": "2026-09-26T14:34:23.999766+00:00"
  // ... plus sections, watch_list and more. Issues before Oct 9, 2026 may also carry
  // action and bot_call (the prediction bot's call, now shown only on /scorecard)
}
GET https://agsist.com/data/markets.json

Prediction-market contracts from Polymarket that bear on farm inputs, energy and the economy. Updated daily. Only active contracts that pass AGSIST’s farm-relevance filter are included; there is no volume floor. volume_24h is the contract’s 24-hour volume in USD where Polymarket reports one, otherwise its lifetime volume. Odds (yes, no) are percentages, not fractions.

{
  "fetched": "2026-09-26T13:47:06Z",
  "version": 5,
  "count": 10,
  // ...more summary fields
  "categories": {
    "Energy & Inputs": [
      {
        "platform":   "Polymarket",
        "ticker":     "2126461",
        "title":      "Will Crude Oil reach a new all-time high by December 31?",
        "yes":        12,
        "no":         88,
        "volume_24h": 1427605.4982939998,
        "close_time": "2027-01-01T04:59:00Z",
        "url":        "https://polymarket.com/event/crude-oil-all-time-high-by"
        // ...more fields
      }
      // ...
    ],
    "Economy & Markets": [ /* ... */ ]
  }
}

Usage policy

Licence

AGSIST’s own writing, design, code, name, and logo are © Sigurd Lindquist, all rights reserved. AGSIST-compiled datasets (the Farmland Atlas and its CSV files) are CC BY 4.0: credit “AGSIST (agsist.com)” with a link. Third-party data shown on the site (Yahoo Finance prices, elevator bids, Polymarket odds, Open-Meteo and NWS weather) is not AGSIST’s to license and no right to redistribute it is granted. Full wording: Terms.

Data sources

Prices via Yahoo Finance / yfinance. Weather via Open-Meteo. Prediction markets via the Polymarket API. The data sources page lists every provider.

Questions and licensing

For integration questions or commercial licensing, email me. I usually answer within a day or two.

Sigurd Lindquist
Founder, AGSIST