Magnitude response

Code snippets

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

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

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

Example response

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

{
    "data": {
        "note": "Magnitude |H| = 1/√(1 + (f/fc)^(2n)). At fc the response is exactly −3.01 dB for any order; far above fc the roll-off is 20·n dB/decade.",
        "inputs": {
            "order": 4,
            "cutoff": 1000,
            "frequency": 2000
        },
        "magnitude": 0.06237829,
        "magnitude_db": -24.099331,
        "attenuation_db": 24.099331,
        "rolloff_db_per_decade": 80
    },
    "meta": {
        "timestamp": "2026-06-05T11:30:23.109Z",
        "request_id": "2bd76ec6-7285-4ccb-8cce-30bb6d421aa0"
    },
    "status": "ok",
    "message": "Magnitude response",
    "success": true
}