DPMO & sigma level

Code snippets

curl "https://api.oanor.com/sixsigma-api/v1/dpmo" \
  -H "x-oanor-key: oanor_test_..."

await fetch("https://api.oanor.com/sixsigma-api/v1/dpmo", {
  headers: { "x-oanor-key": "oanor_test_..." }
});

$ch = curl_init("https://api.oanor.com/sixsigma-api/v1/dpmo");
curl_setopt($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/sixsigma-api/v1/dpmo",
    headers={"x-oanor-key": "oanor_test_..."}
)

Example response

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

{
    "data": {
        "dpmo": 3000,
        "note": "DPMO = defects/(units·opportunities)·1e6. Sigma level = Φ⁻¹(yield) + shift (1.5σ by convention) — 6σ ≈ 3.4 DPMO, 3000 DPMO ≈ 4.25σ.",
        "inputs": {
            "shift": 1.5,
            "units": 1000,
            "defects": 3,
            "opportunities": 1
        },
        "sigma_level": 4.2478,
        "yield_percent": 99.7,
        "defects_per_opportunity": 0.003
    },
    "meta": {
        "timestamp": "2026-06-05T21:48:48.967Z",
        "request_id": "1c6f3b83-919e-483b-8ff9-b0677d7e2cab"
    },
    "status": "ok",
    "message": "DPMO and sigma level",
    "success": true
}