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API · /petfood-api

Pet Food & Calorie API

healthy 4,208 Subscribers

Pet-nutrition maths as an API, computed locally and deterministically — the calorie, portion and water numbers a dog or cat owner, breeder or pet app feeds an animal by. The calories endpoint uses the standard veterinary formula: resting energy RER = 70 × (body weight in kg)^0.75, then daily maintenance MER = RER × a lifestage factor — 1.6 for a neutered adult dog, 1.2 for a neutered cat, 1.0 or 0.8 for weight loss, 2–3 for puppies and 2.5 for kittens — so a 10 kg neutered dog needs about 394 kcal at rest and 630 kcal a day, and a 5 kg neutered cat about 234 and 281. Weight takes kg or pounds, and a custom factor overrides the table. The portion endpoint turns that calorie need into food: daily grams = calories ÷ the food’s energy density (kcal per 100 g, often 350–450 for dry kibble) or cups ÷ kcal per cup, split across meals — so 630 kcal of a 375-kcal/100 g kibble is about 168 g a day, 84 g per meal. The water endpoint gives the daily requirement, roughly 50–60 ml per kg for dogs and 50 for cats. Everything is computed locally and deterministically, so it is instant and private. Ideal for pet-care, veterinary, pet-food, dog- and cat-app developers, feeding-calculator and pet-health tools, and breeder software. Pure local computation — no key, no third-party service, instant. Educational estimates, not veterinary advice. Live, nothing stored. 3 compute endpoints. For dog-age conversion use a different API.

#pet #dog #cat #nutrition #veterinary #developer-tools
api.oanor.com/petfood-api
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Machine-readable spec so AI agents can integrate this API.

/api/petfood-api/openapi.json
/api/petfood-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
4,208
active
Total calls
8
last 7 days
status Full status page → · 12 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 7,500 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 7,500 calls/month
  • 2 req/sec
  • RER/MER calories + portion + water
  • No credit card
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Starter

€4.25 /month

  • 57,000 calls / month
  • 6 requests / second
  • Hard cap (429 above quota, no overage)
  • 57,000 calls/month
  • 6 req/sec
  • Lifestage factors, kg/lb, cups & grams
  • Email support
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Pro

€11.75 /month

  • 234,000 calls / month
  • 15 requests / second
  • Hard cap (429 above quota, no overage)
  • 234,000 calls/month
  • 15 req/sec
  • Feeding-calculator & pet-health pipelines
  • Priority support
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Mega

€37.20 /month

  • 1,352,000 calls / month
  • 40 requests / second
  • Hard cap (429 above quota, no overage)
  • 1,352,000 calls/month
  • 40 req/sec
  • Platform scale
  • Dedicated SLA
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Related APIs

Other APIs with overlapping tags.

Dog & Cat Age API

Pet-age conversion as an API, computed locally and deterministically. The dog endpoint converts a dog’s age in years to a human-equivalent age three ways: the modern epigenetic model from the 2019 UCSD DNA-methylation study, human = 16·ln(dog_age) + 31 (valid from age 1), which makes a 1-year-old dog about 31, a 4-year-old about 53 and a 10-year-old about 68 human years; the American Kennel Club size-based table for small, medium, large and giant breeds, interpolated between yearly anchor points so a large breed ages faster late in life; and the old ×7 rule of thumb for comparison. The cat endpoint converts a cat’s age, counting 15 human years in the first year, 24 by the second, and four per year after that, so a 10-year-old cat is about 56. Ages are in years and decimals are allowed. Everything is computed locally and deterministically, so it is instant and private. Ideal for pet, veterinary, animal-shelter, pet-insurance and lifestyle app developers, dog-years and pet-profile widgets, and fun tools. These are estimates for general guidance, not veterinary advice. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 2 endpoints. This is pet-to-human age; for human body metrics use a BMI or body-fat API.

api.oanor.com/dogage-api

BMR & Calorie API

Energy-expenditure and nutrition maths as an API, computed locally and deterministically. The bmr endpoint computes the basal metabolic rate — the calories the body burns at rest — from weight, height, age and sex, using the modern Mifflin-St Jeor equation (BMR = 10·kg + 6.25·cm − 5·age + 5 for men, −161 for women) and reporting the classic revised Harris-Benedict value alongside for comparison. The tdee endpoint computes the total daily energy expenditure, TDEE = BMR × an activity factor from sedentary (1.2) to very active (1.9), and the goal calories for maintenance, mild and standard weight loss and weight gain — a 500 kcal/day deficit or surplus is about 0.45 kg per week. The macros endpoint splits a calorie target into protein, fat and carbohydrate grams, with protein set per kilogram of bodyweight (4 kcal/g protein and carbs, 9 kcal/g fat). Everything is computed locally and deterministically, so it is instant and private. Ideal for fitness, nutrition and health-app developers, diet and meal-planning tools, gym and coaching apps, and wellness dashboards. Pure local computation — no key, no third-party service, instant. Live, nothing stored. Estimates only, not medical advice. 3 endpoints. This is metabolic-rate and calorie maths; for body-mass-index use a BMI calculator.

api.oanor.com/bmr-api

Health Calculator API

A complete health & fitness calculator suite in one API: Body Mass Index with category and healthy-weight range, Basal Metabolic Rate (Mifflin-St Jeor and Harris-Benedict), Total Daily Energy Expenditure with weight-loss/gain calorie targets, macronutrient splits (balanced, low-carb, high-protein, keto, endurance) with fibre, U.S. Navy body-fat percentage, ideal body weight across four classic formulas (Devine, Robinson, Miller, Hamwi), and daily water intake. Every endpoint accepts GET query parameters or a JSON POST body and works in both metric and imperial units. All computation is done locally with established public-domain equations, so responses are instant and the service is always available. Ideal for fitness trackers, nutrition apps, telehealth and wellness dashboards.

api.oanor.com/healthcalc-api

Food & Nutrition API

Look up packaged food products by barcode (EAN/UPC/GTIN) and get the product name, brand, ingredients, allergens, Nutri-Score, NOVA group, Eco-Score and per-100g nutrition facts — or search the catalogue by name. Backed by the Open Food Facts database. Ideal for nutrition trackers, diet and fitness apps, grocery and retail tools.

api.oanor.com/food-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Pet Food & Calorie API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Pet Food & Calorie API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Pet Food & Calorie 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 Pet Food & Calorie API cost?
Pet Food & Calorie API has a free tier with 100 calls / month. Paid plans start at €4.25 / 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 Pet Food & Calorie API GDPR-compliant?
All requests to Pet Food & Calorie 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/petfood-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/petfood-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/petfood-api/SOME_PATH");
curl_setopt($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/petfood-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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