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GET /v1/remaining

Remaining growth

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10 free calls per day — no sign-up, no API key. Goes through the oanor gateway.

Custom headers (optional)
api.oanor.com/childheight-api

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Code snippets

curl "https://api.oanor.com/childheight-api/v1/remaining" \
  -H "x-oanor-key: oanor_test_..."
await fetch("https://api.oanor.com/childheight-api/v1/remaining", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
$ch = curl_init("https://api.oanor.com/childheight-api/v1/remaining");
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$out = curl_exec($ch);
import requests
requests.get(
    "https://api.oanor.com/childheight-api/v1/remaining",
    headers={"x-oanor-key": "oanor_test_..."}
)

Example response

A real response from this endpoint, captured by the latest health check.

{
    "data": {
        "note": "Remaining = predicted − current; percent of adult height reached = current/predicted. Growth slows toward the end and stops after puberty.",
        "inputs": {
            "current_height": 150,
            "predicted_height": 179
        },
        "remaining_growth_cm": 29,
        "percent_of_adult_height": 83.8
    },
    "meta": {
        "timestamp": "2026-06-04T18:38:19.570Z",
        "request_id": "971c2a4e-eddd-493e-8d0c-3c6ab423c804"
    },
    "status": "ok",
    "message": "Remaining growth",
    "success": true
}