id property from the Instruments endpoint.curl --location --request GET 'https://api.onetrading.com/fast/v1/funding-rate?instrument_code=BTC_USD_P' \
--header 'Authorization: Bearer <token>'[
{
"instrument_code": "BTC_USD_P",
"funding_rate": "0.000017902243428335654",
"mark_price": "67812.73",
"time": 1771575120000,
"timestamp": "2026-02-20T08:12:00.000000000Z"
}
]