Age verification (21+)

21+ checks at checkout or at the venue, read from the ID itself

Alcohol, cannabis where legal and 21+ events: date of birth and expiry read from the ID and its barcode.

The problem

Staff do date math under pressure, at the door or at delivery.
Expired IDs, and IDs whose front and barcode disagree.
Keeping ID images as proof of the check creates liability.

With Constaia

min_age_years: 21 against today or against your event date with reference_date.
AAMVA barcode compared with the printed front; mismatches go to review.
Keep only the verdict and the time of the check with storage "none".
Constaia checks the document, not the face: it does not confirm that the person holding the ID is its owner. Local age verification rules still apply.

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",
      "us_state_id",
      "passport",
      "us_passport_card"
    ],
    "checks": {
      "not_expired": true,
      "min_age_years": 21
    },
    "storage": "none"
  }'

And for the record…

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