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POST
/
placeOrder
Place Order
curl --request POST \
  --url https://api.hypereth.io/v2/hyperliquid/placeOrder \
  --header 'Content-Type: application/json' \
  --header 'X-API-KEY: <api-key>' \
  --data '
{
  "symbol": "<string>",
  "side": "buy",
  "type": "limit",
  "amount": "<string>",
  "price": "<string>",
  "flipPrice": "<string>",
  "clientOrderId": "<string>",
  "reduceOnly": true,
  "timeInForce": "GTC",
  "stopPrice": "<string>",
  "positionSide": "LONG",
  "orderExpiry": 123,
  "provisionOrRevert": true,
  "accountId": "<string>"
}
'
{
  "id": "1234567890",
  "clientOrderId": "0x1234567890abcdef1234567890abcdef",
  "symbol": "BTC",
  "side": "sell",
  "type": "limit",
  "status": "open",
  "price": "65000.0",
  "amount": "0.01",
  "filled": "0",
  "remaining": "0.01",
  "average": null,
  "reduceOnly": true,
  "positionSide": "SHORT",
  "createdAt": 1710000000000,
  "updatedAt": 1710000001000,
  "dexProcessedTimestamp": 1710000001000,
  "dexReceivedTimestamp": 1710000001100,
  "hyperethTimestamp": 1710000001100
}

Authorizations

​
X-API-KEY
string
header
required

Body

application/json
​
symbol
string
required

Unified market symbol

​
side
enum<string>
required
Available options:
buy,
sell
​
type
enum<string>
required

Order type. Note: flip is only available on Kuru (spot DEX).

Flip Order (Kuru only): A flip order places an initial order at price, and when filled, automatically places an opposite-side order at flipPrice. This enables automated take-profit strategies.

Available options:
limit,
market,
stop,
stop_market,
take_profit,
take_profit_market,
trailing_stop_market,
flip
​
amount
string
required

Order quantity.

Kuru Market Order Size Semantics (different from other platforms):

  • Market BUY: amount is in quote asset (e.g., "1" means spend 1 AUSD to buy MON)
  • Market SELL: amount is in base asset (e.g., "200" means sell 200 MON to get AUSD)
​
price
string

Required for limit and flip orders

​
flipPrice
string

Required for flip orders (Kuru only). The price at which the order flips to the opposite side after fill.

Flip Order Lifecycle (Kuru only):

  1. User places a flip order with price and flipPrice
  2. Initial order is placed at price (e.g., BUY at 0.01)
  3. When the order fills, a new order is automatically placed on the opposite side at flipPrice (e.g., SELL at 0.03)
  4. This enables automated take-profit strategies
​
clientOrderId
string

Custom client ID. In Hyperliquid, it is an optional 128 bit hex string. In Aster, it can only be string following the rule ^[\.A-Z\:/a-z0-9_-]{1,36}$. In LighterDex, it must fit within i64.

​
reduceOnly
boolean

Reduce-only flag (not supported on Kuru - spot DEX)

​
timeInForce
enum<string>
  • GTC: Good Till Canceled
  • IOC: Immediate or Cancel
  • FOK: Fill or Kill
  • GTX: Good Till Crossing (Post-only)
  • GTT: Good Till Time (requires orderExpiry)

Kuru-specific behavior:

  • Limit orders: Use GTX for post-only (order rejected if it would match immediately). Omit for aggressive trading (allows immediate matching).
  • Market orders: Use FOK for fill-or-kill (must fill completely or revert). Omit to allow partial fills.
Available options:
GTC,
IOC,
FOK,
GTX,
GTT
​
stopPrice
string

Required for stop/TP orders (not supported on Kuru - spot DEX)

​
positionSide
enum<string>

Position side for hedge mode (not supported on Kuru - spot DEX)

Available options:
LONG,
SHORT,
BOTH
​
orderExpiry
integer<int64>

Order expiry timestamp (milliseconds). Required for GTT orders

​
provisionOrRevert
boolean | null

Provision-or-revert flag for flip orders (Kuru only). If true, ensures atomic execution for the flip order. Defaults to true if not provided.

​
accountId
string | null

Account identifier for multi-account support (Kuru only). If not specified, uses the default account. Note: If the account is locked by a running strategy, the order will be rejected.

Response

200 - application/json

Order placed successfully

​
id
string

Exchange order ID

​
clientOrderId
string

Client order ID (if provided)

​
symbol
string

Trading symbol

​
side
enum<string>
Available options:
buy,
sell
​
type
enum<string>

Order type. Note: flip is only available on Kuru (spot DEX).

Flip Order (Kuru only): A flip order places an initial order at price, and when filled, automatically places an opposite-side order at flipPrice. This enables automated take-profit strategies.

Available options:
limit,
market,
stop,
stop_market,
take_profit,
take_profit_market,
trailing_stop_market,
flip
​
status
enum<string>
Available options:
open,
partial,
closed,
canceled,
expired,
rejected
​
price
string

Order price

​
amount
string

Order quantity

​
filled
string

Filled quantity

​
remaining
string

Remaining quantity

​
average
string | null

Average fill price

​
reduceOnly
boolean

Reduce-only flag

​
positionSide
enum<string> | null

Position side (hedge mode)

Available options:
LONG,
SHORT,
BOTH
​
timeInForce
enum<string>
  • GTC: Good Till Canceled
  • IOC: Immediate or Cancel
  • FOK: Fill or Kill
  • GTX: Good Till Crossing (Post-only)
  • GTT: Good Till Time (requires orderExpiry)

Kuru-specific behavior:

  • Limit orders: Use GTX for post-only (order rejected if it would match immediately). Omit for aggressive trading (allows immediate matching).
  • Market orders: Use FOK for fill-or-kill (must fill completely or revert). Omit to allow partial fills.
Available options:
GTC,
IOC,
FOK,
GTX,
GTT
​
stopPrice
string | null

Stop price for stop/TP orders

​
flipPrice
string | null

Flip price for flip orders (Kuru only). The price at which the order flips to the opposite side after fill.

​
createdAt
integer<int64>

Creation timestamp

​
updatedAt
integer<int64>

Last update timestamp

​
dexProcessedTimestamp
integer | null

Timestamp when the venue (DEX) processed this order book snapshot (in milliseconds)

​
dexReceivedTimestamp
integer | null

Timestamp when HyperETH API server received this message from the venue (in milliseconds)

​
hyperethTimestamp
integer

Timestamp when HyperETH API server completed all processing before returning to client (in milliseconds)