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GET /v1/prandtl

Prandtl number

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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/prandtl-api

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Code snippets

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

Example response

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

{
    "data": {
        "note": "Pr = μ·cp/k — ratio of momentum to thermal diffusivity. μ in Pa·s, cp in J/(kg·K), k in W/(m·K). Air ≈0.71, water ≈7.",
        "inputs": {
            "viscosity": 1.81e-5,
            "specific_heat": 1005,
            "thermal_conductivity": 0.0257
        },
        "prandtl_number": 0.70780156
    },
    "meta": {
        "timestamp": "2026-06-05T19:50:27.098Z",
        "request_id": "dcfc25c3-7ee7-4a8a-96b7-8356461771d9"
    },
    "status": "ok",
    "message": "Prandtl number",
    "success": true
}