trace

This endpoint provides details about when a transaction was received by our systems, when it was released, and whether it was delayed (including the number of slots delayed).

Note: This endpoint is available exclusively to whitelisted customers only.

Request:

Method:

GET ./api/v2/system/trace

Parameters:

Parameter	Type	Description
signature	string	Signature of a submitted transaction.

Request example:

HTTP

curl --header "Authorization: $AUTH_HEADER" \
'http://ny.solana.dex.blxrbdn.com/api/v2/system/trace?signature=...'

Response:

Fields:

Fields	Type	Description
signature	string	The target transaction signature.
firstReceivedTime	google.protobuf.Timestamp	The timestamp when the Trader API backend first received the transaction.
firstReleasedTime	google.protobuf.Timestamp	The timestamp when the Trader API backend first released the transaction.
firstReceivedSlot	int64	The slot number when the Trader API backend first received the transaction.
firstReleasedSlot	int64	The slot number when the Trader API backend first released the transaction.
firstReceivedRegion	string	The first region which received the transaction.
firstReleasedRegion	string	The first region which released the transaction.
delayed	boolean	Whether the transaction propagation was delayed due to malicious leader detection. Transaction delay will only be affected when submitProtection is set to SP_MEDIUM or SP_HIGH.
delayedSlots	int64	Number of slots delayed.

Response Example:

JSON

{
   "signature": "K2UvcQkB5o2...Xvhi8kakUKiroP",
   "firstReceivedTime": "2025-08-28T07:41:31.805125000",
   "firstReleasedTime": "2025-08-28T07:41:31.811762000",
   "firstReceivedSlot": "363028450",
   "firstReleasedSlot": "363028450",
   "firstReceivedRegion": "NY",
   "firstReleasedRegion": "NY",
   "delayed": false,
   "delayedSlots": "0"
}