Submit order

post

https://api.coinotc.com/v1/orders

Submits a new market order for the authenticated customer.

Response behavior

HTTP status	Meaning
`200`	Order snapshot returned — usually the final or latest known state
`202`	Order accepted but no snapshot was available within the wait window — reconcile using `GET /v1/orders/{order_id}`
`400`	Order rejected by validation or execution logic

A 202 response is not a rejection. Always store the returned order_id
and check the final status using GET /v1/orders/{order_id} before retrying.

quantityCurrency

The quantityCurrency field must be the actual currency code of the quantity
you are specifying:

For pair USDT-EUR, set quantityCurrency: "USDT" to buy/sell a base amount
For pair USDT-EUR, set quantityCurrency: "EUR" to spend/receive a quote amount

FIX-style field aliases

The following FIX-style aliases are also accepted by the backend:

Standard field	FIX alias
`symbol`	`Symbol`
`side`	`Side`
`quantity`	`OrderQty`
`quantityCurrency`	`QtyCurrency`
`strategy`	`Strategy`

Recent Requests

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Responses

`error`	Cause
`SYMBOL_NOT_ALLOWED`	Symbol is not enabled for this account
`QTY_CURRENCY_INVALID`	`quantityCurrency` is not the base or quote currency of the pair
`INSUFFICIENT_BALANCE`	Insufficient available balance
`NO_LIQUIDITY`	No liquidity available for this pair/size
`MIN_QTY`	Quantity is below the minimum for this pair
`MAX_QTY`	Quantity exceeds the maximum for this pair
`MIN_NOTIONAL`	Notional value is below the minimum for this pair

`detail`	Cause
`MISSING_HMAC_HEADERS`	One or more required headers are absent
`INVALID_TS`	Timestamp format is invalid
`TS_OUT_OF_WINDOW`	Timestamp is outside the ±60 s skew window
`INVALID_SIGNATURE`	Signature does not match

`detail`	Cause
`API_KEY_DISABLED_OR_NOT_FOUND`	API key does not exist or is disabled
`USER_DISABLED`	Customer user account is disabled
`COUNTERPARTY_DISABLED`	Counterparty account is disabled
`INVALID_COUNTERPARTY_TYPE`	Account type is not permitted for trading
`KYC_NOT_CONFIRMED`	KYC verification is not complete
`NO_SYMBOLS_ENABLED`	No trading pairs are enabled for this account

200Order returned with current or final status.

202Order accepted for processing, but no snapshot was available within the REST wait window. Reconcile using GET /v1/orders/{order_id}.

401Missing or invalid HMAC authentication. detailCauseMISSING_HMAC_HEADERSOne or more required headers are absentINVALID_TSTimestamp format is invalidTS_OUT_OF_WINDOWTimestamp is outside the ±60 s skew windowINVALID_SIGNATURESignature does not match

422Request validation error.