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API · /seedrate-api

Seeding Rate API

healthy 4,531 Subscribers

Planting seed-rate maths as an API, computed locally and deterministically — the plant-population, seed-spacing and seeding-rate numbers a farmer, agronomist or precision-ag tool sets a planter or drill to. The population endpoint gives the plants per acre = 6,272,640 ÷ (row spacing × in-row seed spacing) in inches (the 6,272,640 is the square inches in an acre), so 30-inch rows with seeds 6 inches apart give about 34,800 plants per acre — closer spacing raises the population and the competition. The seed-spacing endpoint runs it the other way: the in-row spacing for a target population = 6,272,640 ÷ (target plants × row spacing), so 35,000 plants per acre in 30-inch rows means a seed about every 6 inches, the value to set on a singulating meter or seed-rate drive. The seeding-rate endpoint gives the pounds of seed per acre = the target population ÷ the germination rate ÷ the seeds per pound, over-seeding for the seeds that never come up — 35,000 plants of a 1,500-seeds-per-lb crop at 95 % germination needs about 24.6 lb/acre, working from the seed lot's own tag. Everything is computed locally and deterministically, so it is instant and private. Ideal for precision-ag and farm-management tools, planter-calibration and agronomy apps, and seed-retail utilities. Pure local computation — no key, no third-party service, instant. US units. 3 compute endpoints. For sprayer rates use a spray API; for fertiliser a fertilizer API.

#seeding #agriculture #planting #precision-ag #farming #developer-tools
api.oanor.com/seedrate-api
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Machine-readable spec so AI agents can integrate this API.

/api/seedrate-api/openapi.json
/api/seedrate-api/llms.txt

Discovery: GET /api/index.json lists every API.

Seeding Rate API — live data on the oanor API marketplace

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
78 ms
Server probes · 24h
Subscribers
4,531
active
Total calls
76
last 7 days
status Full status page → · 8 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 7,350 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 7,350 calls/month
  • 2 req/sec
  • Population + spacing + seeding rate
  • No credit card
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Starter

€9.10 /month

  • 76,500 calls / month
  • 6 requests / second
  • Hard cap (429 above quota, no overage)
  • 76,500 calls/month
  • 6 req/sec
  • Germination-adjusted lb/acre
  • Email support
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Pro

€29.40 /month

  • 324,000 calls / month
  • 15 requests / second
  • Hard cap (429 above quota, no overage)
  • 324,000 calls/month
  • 15 req/sec
  • Planter-calibration & agronomy pipelines
  • Priority support
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Mega

€90.20 /month

  • 1,510,000 calls / month
  • 40 requests / second
  • Hard cap (429 above quota, no overage)
  • 1,510,000 calls/month
  • 40 req/sec
  • Co-op & seed-retail scale
  • Dedicated SLA
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Commodities API

Live commodity futures prices as an API — the energy, grain, soft and livestock commodity complex, served from Yahoo Finance. For any commodity it returns the front-month futures price, the previous close, the absolute and percentage change on the day, the day's high and low and the 52-week high and low, with the price's currency and quoting unit (e.g. USD per barrel, US cents per bushel). Look a commodity up by name or alias (crude oil, Brent, natural gas, gasoline, corn, wheat, soybeans, coffee, sugar, cocoa, cotton, orange juice, live cattle, lean hogs and more), pull a category board (energy, grains, softs, livestock) ranked by the day's move, or get the whole board in one call. The commodity-quote layer for trading, markets and dashboard apps. Live, no key. Distinct from the precious-metals API — this is the energy, agricultural and soft-commodity complex.

api.oanor.com/commodities-api

 Hay Bale Weight API — oanor API marketplace

Hay Bale Weight API

Hay and forage bale maths as an API, computed locally and deterministically — the weight, dry-matter and feed-supply numbers a rancher, hay producer or livestock manager plans winter feed with. The round-bale endpoint gives the weight from the cylinder volume (π·r²·width) × the dry-matter density (typically ~9–12 lb/ft³ for cured hay), so a 5×5 ft bale runs about 1,000 lb, and reports the dry-matter weight (≈88 % of as-fed) that actually feeds the animals — buy and ration on dry matter, not gate weight. The square-bale endpoint gives the weight of a rectangular bale from its length, width and height (÷ 1,728 for cubic feet from inches) × the density — a typical 14×18×36-inch small square is about 50 lb, big 3×3 or 4×4 ft bales hundreds — with a reminder that high moisture both adds weight and risks mould and barn-fire heating. The feed-supply endpoint sizes the stack: feed needed = head × daily intake × days (cattle eat ~2–2.5 % of bodyweight, about 25–30 lb of dry matter for a beef cow), and bales = that ÷ the bale weight, so 30 cows for 120 days at 30 lb is about 108 thousand-pound bales — add 10–20 % for feeding waste. Everything is computed locally and deterministically, so it is instant and private. Ideal for ranch- and farm-management tools, hay-trading and livestock apps, and ag calculators. Pure local computation — no key, no third-party service, instant. US units; densities are estimates. 3 compute endpoints. For grain storage use a grain-bin API; for rotational grazing a grazing API.

api.oanor.com/baleweight-api

 Sprayer Calibration API — oanor API marketplace

Sprayer Calibration API

Agricultural sprayer maths as an API, computed locally and deterministically — the calibration, coverage and tank-mix numbers a farmer, agronomist or custom applicator dials a boom sprayer in with. The calibration endpoint gives the broadcast application rate GPA = 5940 × the per-nozzle flow (GPM) ÷ (ground speed in mph × nozzle spacing in inches), the 5940 converting the units for a full-coverage boom — so a 0.4 GPM nozzle at 5 mph on 20-inch spacing lays down about 24 gallons per acre, and driving faster or spacing nozzles wider drops the rate. The coverage endpoint gives the acres a tank covers (tank ÷ GPA) and, for a field size, the total spray volume and the number of tank-loads, with the partial last fill called out so it can be mixed to the leftover acres. The product endpoint gives the pesticide or nutrient to add per tank = the acres a tank covers × the label rate per acre (in whatever unit the rate uses — ounces, pints, pounds), plus the total product for the field. Everything is computed locally and deterministically, so it is instant and private. Ideal for precision-ag and farm-management tools, sprayer-calibration and tank-mix apps, and ag-retail utilities. Pure local computation — no key, no third-party service, instant. Always follow the product label and calibrate with a real catch test. 3 compute endpoints. For fertiliser rates use a fertilizer API; for sprinkler/irrigation design an irrigation API.

api.oanor.com/spray-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Seeding Rate API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Seeding Rate API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Seeding Rate API?
Free tier allows 1 request per second. Paid plans scale up to 50 requests per second on the Mega tier. Hard limits return HTTP 429 above the quota — no surprise overage charges.
How much does Seeding Rate API cost?
Seeding Rate API has a free tier with 100 calls / month. Paid plans start at €9.10 / month with higher quotas and faster rate limits.
Can I cancel my subscription anytime?
Yes. Plans are billed monthly and you can cancel anytime from your billing dashboard. No long-term contracts and no cancellation fee.
Is Seeding Rate API GDPR-compliant?
All requests to Seeding Rate API go through our EU-based gateway. Your upstream API key never leaves our server and no personal data is shared with the upstream provider beyond the request you send.

Pick an endpoint from the list on the left to see its details and try it.

Code snippets

Sign up to get an API key, then call any path under your slug.

curl https://api.oanor.com/seedrate-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/seedrate-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/seedrate-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);
import requests
r = requests.get(
    "https://api.oanor.com/seedrate-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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