AI body fat estimation
in one API call.
94% Accuracy in the Most Common Body Fat Range. View results →
Send photos and biometrics to a single REST endpoint. Get back an AI-powered body fat estimate as JSON.
terminal
$ request
curl https://api.bodyfatapi.com/v1/estimate-bodyfat \ -H "Authorization: Bearer bf_live_..." \ -F "weight=180" -F "weight_unit=lb" \ -F "height=70" -F "height_unit=in" -F "age=28" \ -F "front_photo=@front.jpg" \ -F "side_photo=@side.jpg"
response
{
"average_estimated_body_fat": 18.4,
"request_id": "req_abc123"
}01
Accurate estimates
3.1% average error in testing. 94% accuracy in the 15-25% body fat range where most people track progress.View results →
02
Fast results
Estimates return in seconds. No queues, no webhooks, no polling required.
03
Simple pricing
$0.10 per estimate. Pay as you go, no subscriptions, no minimums.
Accuracy
Accurate body fat estimates from a phone photo.
3.1% average error in our validation tests. 94% accuracy in the 15-25% body fat range where most people track progress.
Start building
Free demo above. Create an account for production API access.