Place & Cancel Orders

Build order calldata

POST /api/v1/orders/calldata

Field	Type	Required	Description
stockAddress	string	Yes	Stock token address (EVM).
side	string	Yes	Buy or Sell.
type	string	Yes	Market or Limit.
quantity	string / number	Conditional	Limit orders; market sells.
notional	string / number	Conditional	Market buys.
price	string / number	Conditional	Limit orders.
timeInForce	string	Conditional	Limit orders. See enums.
deadline	number	Yes	Tx deadline (Unix seconds).

Market buy

{
  "stockAddress": "0x0000000000000000000000000000000000000001",
  "side": "Buy",
  "type": "Market",
  "notional": "10",
  "deadline": 1893456000
}

Limit sell

{
  "stockAddress": "0x0000000000000000000000000000000000000001",
  "side": "Sell",
  "type": "Limit",
  "quantity": "1.25",
  "price": "180.50",
  "timeInForce": "DAY",
  "deadline": 1893456000
}

Limit buy

{
  "stockAddress": "0x0000000000000000000000000000000000000001",
  "side": "Buy",
  "type": "Limit",
  "quantity": "0.05",
  "price": "180.50",
  "timeInForce": "DAY",
  "deadline": 1893456000
}

Limit orders (buy and sell) use quantity + price; notional is only for market buys. Production limit orders accept only timeInForce: "DAY" — other values revert on-chain.

Response data:

Field	Type	Description
chainId	number	Chain ID.
productType	string	Product type.
toAddress	string	Router address.
value	string	Native value ("0").
callData	string	Encoded calldata.
method	string	placeMarketOrder or placeLimitOrder.

Submit toAddress + callData on-chain, then record via order-status-and-history.md.

One Click place order

POST /api/v1/orders/send

Same body as /calldata, plus optional gasLimit (set a buffer — the API broadcasts through OneClickRouter and pays gas). Requires One Click enabled and API key userAddress configured.

The response is the order-tx mapping, not calldata: { id, chainId, productType, operationType, orderId, txHash, status, ... }. orderId is null until the indexer backfills it — poll GET /orders/tx/{txHash} or GET /orders/{orderId} (once populated).

Build Order-With-Deposit Calldata

POST /api/v1/orders/with-deposit/calldata

Use this endpoint when the order transaction should also use StockRouter as the approved spender before placing the order. For buys, StockRouter transfers the cash token to Cashier; for sells, it transfers the stock token to Stock.

Field	Type	Required	Description
stockAddress	string	Yes	Stock token address.
depositAmount	string / number	Yes	Human-readable deposit amount. For buys, this is cash token amount. For sells, this is stock token amount.
depositTokenAddress	string	Conditional	Cash token address. Required for buy orders.
side	string	Yes	Buy or Sell.
type	string	Yes	Market or Limit.
quantity	string / number	Conditional	Limit orders; market sells.
notional	string / number	Conditional	Market buys.
price	string / number	Conditional	Limit orders.
timeInForce	string	Conditional	Limit orders.
deadline	number	Yes	Tx deadline (Unix seconds).

For buy orders, the cash token must be approved for StockRouter, and the cash deposit must be eligible for instant deposit; otherwise the combined transaction reverts. For sell orders, the wallet stock token must be approved for StockRouter.

Market buy with deposit

{
  "stockAddress": "0x0000000000000000000000000000000000000001",
  "depositTokenAddress": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "depositAmount": "100",
  "side": "Buy",
  "type": "Market",
  "notional": "10",
  "deadline": 1893456000
}

Market sell with stock deposit

{
  "stockAddress": "0x0000000000000000000000000000000000000001",
  "depositAmount": "1.25",
  "side": "Sell",
  "type": "Market",
  "quantity": "1.25",
  "deadline": 1893456000
}

One Click Order With Deposit

POST /api/v1/orders/with-deposit/send

Same body as /with-deposit/calldata, plus optional gasLimit. Requires One Click enabled and API key userAddress configured.

Cancel limit order

Self-submit cancel calldata

DELETE /api/v1/orders/{orderId}/calldata?deadline=1893456000

Use the orderId exactly as returned by the API — a 0x-prefixed 32-byte hex string (66 characters), e.g. 0x00000000000049fb0001000049d0d92daa26b7f121276e7034af17aed9e4c71e. Put it in the path as-is: DELETE /api/v1/orders/0x00000000000049fb0001000049d0d92daa26b7f121276e7034af17aed9e4c71e/calldata?deadline=1893456000

One Click cancel

DELETE /api/v1/orders/{orderId}/send?deadline=1893456000

Returns uuid and txHash.

Cancel rules

• Order belongs to current API key

• Order is open

• Limit orders only

• No pending cancel in flight

• API key userAddress matches order user