— 端点(REST) —
/fapi/v3/exchangeInfo、/fapi/v3/depth、/fapi/v3/ticker/price、/fapi/v3/fundingRate/fapi/v3/order(x-www-form-urlencoded),签名串经 personal_sign/fapi/v2/balance、/fapi/v2/positionRisk、/fapi/v3/openOrders、/fapi/v3/positionSide/dual、/fapi/v3/leverage、/fapi/v3/marginType— 签名 —
string,address,address,uint256)→ keccak → personal_signX-MBX-APIKEY + signature— 精度与步进 —
exchangeInfo.symbols[].filters 中 LOT_SIZE(minQty/maxQty/stepSize) 对齐数量,超限自动降量重试。timeInForce,否则 -1106。— 常见错误 —
LONG/SHORT ↔ BOTH 回退。