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GET /v1/equilibrium

Equilibrium constant

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

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Code snippets

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

Example response

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

{
    "data": {
        "ln_k": 85.627838,
        "note": "K = exp(nF·E°cell / RT); ΔG° = −RT·ln K = −nF·E°cell. A large positive E°cell gives a huge K (products favoured).",
        "inputs": {
            "electrons": 2,
            "temperature_k": 298.15,
            "cell_potential_v": 1.1
        },
        "log10_k": 37.187697,
        "equilibrium_constant": 1.5406269586154516e+37,
        "delta_g_standard_kj_mol": -212.267731
    },
    "meta": {
        "timestamp": "2026-06-05T11:30:39.561Z",
        "request_id": "69ee338f-ecd4-463c-b7ef-b4279088fe90"
    },
    "status": "ok",
    "message": "Equilibrium constant",
    "success": true
}