Case Status API
Provides case status information to USCIS customers and their representatives who require regular access to case status information.
FOIA Request and Status API
This API allows consumers to create a Freedom of Information Act (FOIA) or Privacy Act (PA) request, for Alien File material, about or on behalf of the subject of record. You can check the status of the FOIA/PA Alien File Request by using the Request Number returned from the newly created case.