Trading

Trading actions on Ondo and the venue’s order constraints

The Ondo provider exposes trading actions in the actions array from GET /providers. Every trading action is signed by the venue API key (PerpsSigner.SDK) using the hmac signing method and relayed to the venue by the backend — see Signing Model. For setup actions, see Setup. For full parameter schemas, see the Actions API reference.

Order constraints

These apply across placeOrder and placeTriggerOrder:

• Cross margin only. marginMode: ISOLATED is rejected.
• LIMIT and MARKET order types only.
• price required for a limit order and validated on the market’s price grid; size is validated on the size grid.
• Time-in-force: GTC, IOC, POST_ONLY (post-only submits as GTC with the post-only flag).
• No order expiry — expiresAt must be omitted.
• Trigger legs execute at market — a limitPrice on a takeProfit / stopLoss is rejected.

actions

placeOrder

Places a market or limit order. When leverage is supplied, the SDK first submits a leverage step for the market, then the order. Optional takeProfit / stopLoss legs attach trigger orders to the entry.

Signers	SDK (HMAC relay)
Params	PlaceOrderParams — { market, side, type?, size, price?, leverage?, marginMode?, reduceOnly?, timeInForce?, takeProfit?, stopLoss? }
SDK methods	placeOrder()

placeTriggerOrder

Attaches standalone take-profit and/or stop-loss triggers to an open position. Triggers execute at market (no limit price).

Signers	SDK (HMAC relay)
Params	PlaceTriggerOrderParams — { market, side, takeProfit?, stopLoss? }
SDK methods	placeTriggerOrder()

placeTwapOrder

Places a TWAP parent order over REST, relayed by the backend as an HMAC-signed venue request (POST /v1/perps/twap/order).

Signers	SDK (HMAC relay)
Params	PlaceTwapOrderParams — { market, side, size, durationSeconds, reduceOnly?, frequencySeconds?, minPrice?, maxPrice? }
SDK methods	placeTwapOrder()

durationSeconds (the venue’s runningTime) must be between 300 and 86400 seconds and an exact multiple of frequencySeconds (the child-order interval, default 30s; allowed values 30/60/300/900/3600s) — the resulting child-order count must fall between 2 and 200. minPrice/maxPrice bound the acceptable child-order price when both are supplied (minPrice below maxPrice); either or both may be omitted for no bound. randomize must be omitted — Ondo’s REST TWAP endpoint takes no randomization parameter.

cancelOrder

Cancels one or more open orders by id. A single id cancels one order; multiple ids cancel as a batch.

Signers	SDK (HMAC relay)
Params	CancelOrderParams — { ids }
SDK methods	cancelOrders()

cancelTwapOrder

Cancels a running TWAP parent by id (DELETE /v1/perps/twap/order/{twapId}).

Signers	SDK (HMAC relay)
Params	CancelTwapOrderParams — { market, twapId }
SDK methods	cancelTwapOrder()

twapId is Ondo’s globally-unique twap_-prefixed identifier returned from placeTwapOrder. market is required by the shared params shape but unused here — Ondo’s TWAP ids need no market to disambiguate.

cancelAllOrders

Immediately cancels every open order on the account.

Signers	SDK (HMAC relay)
Params	(none beyond the implicit account/key context)
SDK methods	Dispatched via execute() — no dedicated wrapper

updateLeverage

Sets the cross-margin leverage for a market.

Signers	SDK (HMAC relay)
Params	UpdateLeverageParams — { market, leverage, marginMode? }