post https://api.track123.com/gateway/open-api/tk/v2.1/track/query-realtime
Instant Tracking lets you create and get tracking results in one call, returning the latest shipment status immediately.
This API is intended as a supplement to the standard Register trackings workflow.
It is useful for one-off or occasional lookups where you need the latest shipment details immediately and do not need to store the tracking number.
Notes:
- Each request consumes one tracking quota.
- Tracking numbers queried via this API are not stored in your backend account.
- Rate limit: maximum 1 request per second.
- Designed for occasional use — not recommended for bulk or frequent calls.
Use case:
Check a shipment’s latest status instantly without adding it to your registered tracking list.