Aster API Trading
Base: https://fapi.asterdex.com. Signed (TRADE/USER_DATA). POST/DELETE: body application/x-www-form-urlencoded.
New order
POST /fapi/v3/order (Weight: 1)
| Parameter | Req | Notes |
|---|---|---|
| symbol, side, type | Y | side: BUY/SELL; type → see below |
| positionSide | N | BOTH or LONG/SHORT (hedge); req. in Hedge Mode |
| timeInForce | N | GTC, IOC, FOK, GTX |
| quantity, reduceOnly | N | Not with closePosition; reduceOnly not in hedge |
| price, stopPrice | N | stopPrice for STOP*/TAKE_PROFIT* |
| closePosition | N | STOP_MARKET/TAKE_PROFIT_MARKET only; no quantity/reduceOnly |
| activationPrice, callbackRate | N | TRAILING_STOP_MARKET; callbackRate 0.1–5 (1=1%) |
| workingType, priceProtect | N | MARK_PRICE/CONTRACT_PRICE; "TRUE"/"FALSE" |
| newClientOrderId | N | Unique; ^[\.A-Z\:/a-z0-9_-]{1,36}$ |
| newOrderRespType | N | ACK (default), RESULT |
Type-specific required: LIMIT → timeInForce, quantity, price. MARKET → quantity. STOP/TAKE_PROFIT → quantity, price, stopPrice. STOP_MARKET/TAKE_PROFIT_MARKET → stopPrice. TRAILING_STOP_MARKET → callbackRate.
Trigger rules: STOP/STOP_MARKET: BUY → latest ≥ stopPrice; SELL → latest ≤ stopPrice. TAKE_PROFIT/TAKE_PROFIT_MARKET: opposite. TRAILING_STOP_MARKET: BUY → low ≤ activationPrice and latest ≥ low×(1+callbackRate); SELL → high ≥ activationPrice and latest ≤ high×(1-callbackRate). activationPrice: BUY < latest, SELL > latest (else -2021). closePosition=true: close all long (SELL) or short (BUY); hedge: no BUY for LONG / SELL for SHORT.
Batch / Cancel / Query
- POST /fapi/v3/batchOrders (W: 5):
batchOrdersmax 5; responses match order. - DELETE /fapi/v3/order (W: 1): symbol + orderId or origClientOrderId.
- DELETE /fapi/v3/allOpenOrders (W: 1): symbol.
- DELETE /fapi/v3/batchOrders (W: 1): symbol + orderIdList or origClientOrderIdList (max 10).
- GET /fapi/v3/order, openOrder (W: 1): symbol + orderId or origClientOrderId.
- GET /fapi/v3/openOrders (W: 1 or 40): symbol optional; no symbol = all (40).
- GET /fapi/v3/allOrders (W: 5): symbol req.; orderId, startTime, endTime, limit (500 default, 1000 max). Window < 7 days. CANCELED/EXPIRED >7d no fills may be missing.
Payload shapes: reference.md.