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GET /v1/meta

Totals, periods & source

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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/dinosaurs-api

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Code snippets

curl "https://api.oanor.com/dinosaurs-api/v1/meta" \
  -H "x-oanor-key: oanor_test_..."
await fetch("https://api.oanor.com/dinosaurs-api/v1/meta", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
$ch = curl_init("https://api.oanor.com/dinosaurs-api/v1/meta");
curl_setopt($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/dinosaurs-api/v1/meta",
    headers={"x-oanor-key": "oanor_test_..."}
)

Example response

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

{
    "data": {
        "note": "max_ma/min_ma are millions of years ago; period derived from age midpoint.",
        "total": 4188,
        "fields": [
            "id",
            "name",
            "period",
            "named_by",
            "early_interval",
            "late_interval",
            "max_ma",
            "min_ma"
        ],
        "source": "Paleobiology Database (Dinosauria genera)",
        "periods": [
            {
                "count": 148,
                "period": "Triassic"
            },
            {
                "count": 445,
                "period": "Jurassic"
            },
            {
                "count": 1536,
                "period": "Cretaceous"
            }
        ]
    },
    "meta": {
        "timestamp": "2026-05-31T02:02:07.402Z",
        "request_id": "54760101-5e55-41e7-b7a0-218c6ec285b3"
    },
    "status": "ok",
    "message": "Meta retrieved",
    "success": true
}