Car and equipment rental
Driver license checks before the keys change hands
License valid through the return date, minimum renter age and name matched with the booking.
The problem
- Licenses that expire during the rental period.
- Renter age rules (21+, young renter fees under 25) applied by hand.
- The name on the booking and on the license do not match.
With Constaia
- not_expired with reference_date set to the return date.
- min_age_years for your policy, and the AAMVA barcode compared with the front.
- A verdict in seconds at online check-in. Your counter staff still compares the photo with the person.
- License data kept to the minimum, in line with DPPA and state privacy rules: storage "none" by default.
Typical documents
Sample request
curl https://api.constaia.com/v1/analyze \
-H "Authorization: Bearer $CONSTAIA_API_KEY" \
-F "file=@document.pdf" \
-F 'options={
"expect": "us_driver_license",
"checks": {
"not_expired": true,
"reference_date": "2026-10-20",
"min_age_years": 21,
"holder": {
"full_name": "Jordan Specimen"
}
},
"storage": "none"
}'And for the record…
Create your account, copy the test key and validate your first document in five minutes.