The Integrated Foreign Trade System (Siscomex) will begin reducing, as of October 19, 2026, access limits to older versions of the TTCE APIs, used in the integration between private systems and the Single Foreign Trade Portal. The shutdown of the previous services is scheduled for December 6.
The change was communicated by the Single Portal management through Siscomex Sistemas News No. 019/2026, published on October 15. The measure accompanies the release of a new version of the Batch Download API, developed to make the update of tax data between business platforms and the government environment more efficient.
Limits will be reduced gradually
The schedule establishes four stages of reduction in access limits to the older APIs, calculated per CPF every hour.
-
October 19: limit of 800 accesses per hour.
-
October 26: limit of 600 accesses per hour.
-
November 2: limit of 400 accesses per hour.
-
November 9: limit of 200 accesses per hour.
The old services will remain available during the transition, but with progressively reduced capacity. The forecast for discontinuation on December 6 does not yet represent a definitive confirmation of the termination date.
New API allows batch data update
The new Batch Download API seeks to facilitate the update of tax information through joint data retrieval, reducing the dependence on repeated individual queries.
For companies using automated integrations, the change requires an assessment of query routines and systems responsible for communication with the Single Portal.
Importers, exporters, customs brokers and developers of foreign trade solutions should verify whether their applications still depend on the old services and plan the necessary adjustments.
Attention to Duimp queries
The notice also directs users to technical guidance on the limits for automated queries to the Single Import Declaration (Duimp).
Among the available alternatives to improve integration efficiency are checking the date of the last change to the declaration before querying all its data again and using automated notifications to monitor status changes.
The recommendation is to review integration procedures, avoid unnecessary repetitive queries, and follow the official guidance from the Single Portal.
Early adjustment is important to reduce the risk of interruptions in automated routines during the transition to the new version of services.
```
