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GET /v1/binomial

Binomial distribution

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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/probability-api

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Code snippets

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

Example response

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

{
    "data": {
        "k": 5,
        "n": 10,
        "p": 0.5,
        "sd": 1.5811388,
        "cdf": 0.62304687,
        "pmf": 0.24609375,
        "mean": 5,
        "variance": 2.5,
        "distribution": "binomial"
    },
    "meta": {
        "timestamp": "2026-06-03T17:42:05.800Z",
        "request_id": "24f85575-cfdf-4965-98b9-785c69e06e5f"
    },
    "status": "ok",
    "message": "Binomial",
    "success": true
}