Pretrained computer vision classifier
Identify cat age with one API call.
A pretrained cat age classifier that sorts an image into one of 5 categories — what age category a cat falls into. Use the cat age API immediately, no training required, then adapt it to your own data when you need more.
Try the cat age classifier
Drop in a photo and get the prediction back. No signup, no setup.
What this cat age classifier recognizes
A sample of the 5 labels this pretrained classifier chooses between.
Need a label that isn't here? Clone the classifier into your Nyckel console and edit the label set to fit your data.
Call the cat age API
Get your own copy of this classifier behind your own endpoint — callable from any HTTP client:
curl -X POST "https://www.nyckel.com/v1/functions/YOUR_FUNCTION_ID/invoke" \
-H "Authorization: Bearer YOUR_ACCESS_TOKEN" \
-H "Content-Type: application/json" \
-d '{"data": "https://example.com/photo.jpg"}'import requests
response = requests.post(
"https://www.nyckel.com/v1/functions/YOUR_FUNCTION_ID/invoke",
headers={"Authorization": "Bearer YOUR_ACCESS_TOKEN"},
json={"data": "https://example.com/photo.jpg"},
)
print(response.json())const response = await fetch("https://www.nyckel.com/v1/functions/YOUR_FUNCTION_ID/invoke", {
method: "POST",
headers: {
"Authorization": "Bearer YOUR_ACCESS_TOKEN",
"Content-Type": "application/json",
},
body: JSON.stringify({ data: "https://example.com/photo.jpg" }),
});
console.log(await response.json());$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://www.nyckel.com/v1/functions/YOUR_FUNCTION_ID/invoke');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, '{"data": "https://example.com/photo.jpg"}');
$headers = array();
$headers[] = 'Authorization: Bearer YOUR_ACCESS_TOKEN';
$headers[] = 'Content-Type: application/json';
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
$result = curl_exec($ch);
curl_close($ch);
echo $result;Example response
{
"labelName": "Adult",
"labelId": "label_...",
"confidence": 0.92
}Under the hood
Trained on a Nyckel-curated dataset covering 5 cat age categories, served on Nyckel's own infrastructure — your image stays on Nyckel.
Send an image URL or file to the invoke endpoint; the response is a label with a confidence score.
Clone it, then correct predictions and add your own samples in the console — Nyckel retrains automatically, turning this into a custom model tuned to your data.
Where teams use cat age classification
Pet Adoption Age Assessment
This function can be implemented by animal shelters and rescue organizations to quickly classify the age of cats based on images. Accurate age identification can help in better matching cats with potential adopters and ensuring that adopters are prepared for the specific needs of their new pet.
Veterinary Care Recommendations
Veterinary clinics can utilize the age identification feature to recommend appropriate care and medical procedures tailored to the cat’s life stage. This could include vaccination schedules, dietary needs, and preventive health measures, ultimately enhancing the quality of care provided.
E-commerce Pet Products
Online pet product retailers could integrate the age identification feature on their platforms to suggest age-appropriate products for cats. This personalized shopping experience can increase customer satisfaction and encourage repeat purchases of age-appropriate food, toys, and health supplements.
Cat Insurance Evaluation
Pet insurance companies could employ this function to assess the age of cats in submitted claims or during the application process. Understanding the age can help in determining coverage options, premiums, and potential risk factors associated with certain age brackets.
Breeder Quality Control
Cat breeders can leverage this image classification function to maintain high standards in age identification for their kittens. This capability can assist breeders in providing accurate information to potential buyers and ensuring that animals are sold at the right age for adoption.
Educational Programs and Workshops
Animal welfare organizations could use this function during workshops aimed at educating the public about proper care practices for cats at different ages. Accurate age identification can facilitate discussions about development stages, behavioral changes, and healthcare needs.
Research Data Collection
Researchers studying feline behavior or health can employ the age identification function to categorize their study subjects more effectively. This will allow for more precise data analysis concerning age-related factors in various research fields such as genetics or animal behavior.
Common questions
What's the difference between a zero-shot and a Nyckel-trained classifier?
A zero-shot classifier uses a large foundation model's general knowledge to pick between your labels — no task-specific training, so new or edited labels work immediately. A Nyckel-trained classifier has been trained on labeled examples and runs on Nyckel's own infrastructure, which typically makes it faster, cheaper per call, and more accurate on data that resembles its training set. The "Under the hood" section on this page shows which kind this classifier is, and any classifier can be adapted into a trained one by adding your own examples.
How do I know whether this will work for my application?
Honestly: we can't know in advance — it depends on your data stream and how closely it resembles what this classifier has seen. The reliable way to find out is to measure it on your own data: start invoking the classifier with real traffic, or upload and annotate a set of images in the console — make sure they look like your production data, not idealized examples. Nyckel's evaluation metrics then show you exactly how it performs on that data before you rely on it.
What happens when it makes a mistake?
No classifier is perfect, so Nyckel is built around the correction loop: invokes can be captured for review, you confirm or correct predictions in the console, and corrections become training data. Over time the model adapts to your data distribution — accuracy on your traffic improves with use rather than staying fixed.
Do I need training data to get started?
No. This cat age classifier works out of the box — clone it into your console and you'll have your own API endpoint in under a minute. Training data only enters the picture when you want to adapt it: your corrected predictions and uploaded samples improve the model, and you can also edit the label set to match your needs.
What does it cost to try?
Trying the classifier on this page is free with no signup. Cloning it requires a free account, and the free tier covers your first API calls each month — see nyckel.com/pricing for current limits and paid tiers.
Related classifiers
Ready to classify cat age at scale?
Add this pretrained classifier to your Nyckel console — you'll get a live API endpoint in under a minute, and a path to a custom model when you need one.