Minimum filter order

Code snippets

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

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

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

Example response

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

{
    "data": {
        "note": "Chebyshev Type I minimum order n = ⌈acosh(√((10^(As/10)−1)/(10^(Ap/10)−1))) / acosh(fs/fp)⌉. It is usually a lower order than Butterworth for the same spec, at the cost of passband ripple.",
        "order": 3,
        "inputs": {
            "passband_edge": 1000,
            "stopband_edge": 4000,
            "passband_ripple": 1,
            "stopband_attenuation": 40
        },
        "exact_order": 2.895106
    },
    "meta": {
        "timestamp": "2026-06-05T19:50:34.413Z",
        "request_id": "70e75780-84b2-4d68-9da2-e1db8f8502d7"
    },
    "status": "ok",
    "message": "Filter order",
    "success": true
}