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GET /v1/belt

Belt-drive tension & power

Try it live

10 free calls per day — no sign-up, no API key. Goes through the oanor gateway.

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

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Code snippets

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

Example response

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

{
    "data": {
        "turns": 0.5,
        "formula": "T2 = T1/e^(μβ); effective tension = T1 − T2; power = (T1−T2)·v.",
        "max_power_w": 6103.388626,
        "max_power_kw": 6.10338863,
        "belt_speed_ms": 10,
        "tension_ratio": 2.5663324,
        "wrap_angle_deg": 180,
        "wrap_angle_rad": 3.14159265,
        "slack_tension_n": 389.661137,
        "tight_tension_n": 1000,
        "effective_tension_n": 610.338863,
        "friction_coefficient": 0.3
    },
    "meta": {
        "timestamp": "2026-06-04T10:18:39.820Z",
        "request_id": "e8da05f4-b0e0-4d35-a669-37bf3971314b"
    },
    "status": "ok",
    "message": "Belt-drive tension & power",
    "success": true
}