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API · /canning-api

Home Canning API

healthy 4,575 Subscribers

Home-canning maths as an API, computed locally and deterministically — the altitude adjustments that keep a batch of preserves safe, the numbers a canner, homesteader or recipe app processes a jar by. Because water boils cooler the higher you are, every tested sea-level recipe has to run longer or hotter, and this API does that arithmetic. The waterbath endpoint applies the USDA boiling-water-bath and steam-canner rule: for a base process of 20 minutes or less add 5, 10, 15 or 20 minutes by altitude band, and for more than 20 minutes add 10, 20, 30 or 40 — so a 15-minute pickle recipe at 4,000 feet processes 25 minutes, and a 30-minute one runs 50. The pressure endpoint adjusts the canner: a dial gauge gains 1 psi per 2,000 feet, turning an 11 psi recipe into 12, 13, 14 or 15, while a weighted gauge simply steps from 10 psi up to 1,000 feet to 15 above it, since it only has 5/10/15 settings. The boilingpoint endpoint gives the underlying reason — water boils about 1.84 °F lower per 1,000 feet, so 5,000 feet boils at 202.8 °F instead of 212. Everything is computed locally and deterministically, so it is instant and private. Ideal for canning, food-preservation, homesteading, recipe and kitchen app developers, preserving-calculator and pantry tools, and cooking-class software. Pure local computation — no key, no third-party service, instant. USDA tables — always follow a tested recipe. Live, nothing stored. 3 compute endpoints.

#canning #food-preservation #homesteading #cooking #altitude #developer-tools
api.oanor.com/canning-api
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Machine-readable spec so AI agents can integrate this API.

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

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

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
88 ms
Server probes · 24h
Subscribers
4,575
active
Total calls
4
last 7 days
status Full status page → · 8 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 7,150 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 7,150 calls/month
  • 2 req/sec
  • Water-bath + pressure + boiling point
  • No credit card
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Starter

€4.08 /month

  • 58,500 calls / month
  • 6 requests / second
  • Hard cap (429 above quota, no overage)
  • 58,500 calls/month
  • 6 req/sec
  • Dial & weighted gauges, ft/m
  • Email support
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Pro

€11.35 /month

  • 237,000 calls / month
  • 15 requests / second
  • Hard cap (429 above quota, no overage)
  • 237,000 calls/month
  • 15 req/sec
  • Recipe & preserving-app pipelines
  • Priority support
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Mega

€36.40 /month

  • 1,358,000 calls / month
  • 40 requests / second
  • Hard cap (429 above quota, no overage)
  • 1,358,000 calls/month
  • 40 req/sec
  • Platform scale
  • Dedicated SLA
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Egg Incubation API

Egg-incubation maths as an API, computed locally and deterministically — the hatch timeline, conditions and brooder numbers a hatchery or backyard chicken-keeper raises a clutch by. The hatch endpoint turns the set day (day 0) into the schedule by species: it knows the incubation period — chicken 21 days, duck 28, quail 17, goose 30, turkey 28, Muscovy 35 and more — and gives the lockdown day, about three days before hatch, when you stop turning the eggs, raise the humidity and leave the lid shut; pass a custom incubation_days for anything else. The conditions endpoint gives the targets: a forced-air incubator at 99.5 °F (still-air a degree or two higher at the top of the eggs), with humidity around 45–55 % through incubation and 65–75 % at lockdown so the membrane stays soft. The brooder endpoint schedules the chicks after they hatch — 95 °F under the lamp in week one, dropping 5 °F a week until they reach room temperature around 70 °F and are feathered enough to leave it. Everything is computed locally and deterministically, so it is instant and private. Ideal for poultry, hatchery, homesteading and farm app developers, incubation-timer and brooder tools, and 4-H / education software. Pure local computation — no key, no third-party service, instant. Guidance — candle the eggs and watch the chicks. Live, nothing stored. 3 compute endpoints.

api.oanor.com/incubation-api

Vegetable Fermentation API

Vegetable lacto-fermentation maths as an API, computed locally and deterministically — the salt numbers a fermenter weighs sauerkraut, kimchi and pickles by. (Vegetables, not meat — for cure and nitrite that is a separate calculation.) Salt is the whole game: too little and the wrong microbes win, too much and the ferment stalls. The salt endpoint does the dry-salt method for shredded veg, salt = vegetable weight × percent, with about 2 % being the classic sauerkraut and kimchi target — so a kilo of cabbage takes 20 grams — and it bands the result from low-and-fast to a near salt-cure. The brine endpoint sizes a submerged ferment, salt = water weight × percent where the percent is of the water as recipes state it (1 ml water ≈ 1 g), so a litre at 5 % needs 50 grams for a standard sour pickle, 3.5 % for a milder one; it also reports the salinity as a percent of the total solution. The salinity endpoint converts the two ways the same brine is expressed — percent of water versus percent of total — so a 5 %-of-water brine reads about 4.76 % on a refractometer. Everything is computed locally and deterministically, so it is instant and private. Ideal for fermentation, homesteading, recipe and food app developers, ferment-calculator and batch tools, and culinary software. Pure local computation — no key, no third-party service, instant. Grams and ml. Live, nothing stored. 3 compute endpoints.

api.oanor.com/fermentation-api

Chicken Coop API

Backyard-chicken housing maths as an API, computed locally and deterministically — the coop, run and fixture numbers a flock keeper builds to. The space endpoint sizes the housing from the flock and the breed: about 4 ft² of coop floor per standard hen (2 for bantams, 5 for heavy breeds) plus roughly 10 ft² of run each, so ten standard hens want a 40 ft² coop and a 100 ft² run — and given a coop width it returns the length, or zero run for birds that free-range and only roost inside. The fixtures endpoint covers the inside: one nest box per three to four hens (they share and queue, so ten hens need three), 8–12 inches of roost bar per bird (ten birds ≈ 8.3 feet), about 4 inches of linear feeder space each, and a waterer per eight or so birds. Crowding is the root of pecking, disease and mess, so every figure rounds up and more space is always better; roosts should sit higher than the nest boxes so the birds don’t sleep — and soil — in them. Everything is computed locally and deterministically, so it is instant and private. Ideal for homesteading, backyard-poultry, farm and smallholding app developers, coop-planner and flock-management tools, and self-sufficiency software. Pure local computation — no key, no third-party service, instant. US units, rules of thumb. Live, nothing stored. 2 compute endpoints. For feed quantities use a different API.

api.oanor.com/chickencoop-api

Baking Pan Scaler API

Baking-pan maths as an API, computed locally and deterministically — the area and scale-factor numbers a baker resizes a recipe between pans with. The trick everyone gets wrong is that a recipe scales by the pan’s AREA, not its diameter, so a 10-inch round holds far more batter than a 9-inch. The area endpoint gives the surface area of any pan — round and springform as π/4·d², square as s², rectangle as length × width, and bundt or tube pans as the ring (the outer circle minus the centre hole) — so a 9-inch round is 63.6 in², an 8-inch square 64 and a 9×13 is 117; add a depth and it returns the volume in cubic inches and cups. The convert endpoint gives the scale factor to move a recipe from one pan to another, factor = target area ÷ source area: a 9-inch round to a 9×13 is ×1.84, and two 8-inch rounds really do equal one 9×13. Pass an ingredient amount and it scales it for you, with a note to keep the batter depth similar and adjust the bake time. Everything is computed locally and deterministically, so it is instant and private. Ideal for baking, recipe, meal-prep and kitchen app developers, recipe-scaling and substitution tools, and culinary software. Pure local computation — no key, no third-party service, instant. Inches. Live, nothing stored. 2 compute endpoints. For ingredient unit conversion use a cooking API.

api.oanor.com/panscale-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Home Canning API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Home Canning API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Home Canning 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 Home Canning API cost?
Home Canning API has a free tier with 100 calls / month. Paid plans start at €4.08 / 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 Home Canning API GDPR-compliant?
All requests to Home Canning 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/canning-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/canning-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/canning-api/SOME_PATH");
curl_setopt($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/canning-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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