Thai Driver License OCR

Reads the front of a Thai driver licence and returns its number, names, dates and type in Thai and English, and whether the photo, flag and signature are present.

POST/v3/store/ekyc/thai-driver-licenseTry it

• Price1.25 ICper page
• Measured95.14%
• Capacity25,000 cards/hour
• Served13.9Mcalls

• v1.1.3-20260824
• Updated 24 Aug 2026
• Active
• Benchmark paper (PDF)

Input

OutputPOST /v3/store/ekyc/thai-driver-license

en_license_no

00000000

en_name

Mr. iApp Technology

en_type

Private Car Driving License

en_expiry

26 March 2024

id_no

1111111111111

face

Detected

message

Success

Every field, under Response

Request

curl -X POST https://api.iapp.co.th/v3/store/ekyc/thai-driver-license \
  -H "apikey: YOUR_API_KEY" \
  -F "file=@driver_license.jpg"

Response

200OK. The fields are explained under Response.

{
    "en_license_no": "00000000",
    "en_name": "Mr. iApp Technology",
    "en_type": "Private Car Driving License",
    "en_expiry": "26 March 2024",
    "id_no": "1111111111111",
    "face": "Detected",
    "message": "Success"
}

Request

multipart/form-data, one card per request.

Headers

apikeystringrequired

Your API key, created under API Keys in the control panel.

Body

filefilerequired

The front of the licence. JPEG, PNG, GIF, HEIC or HEIF, up to 6 MB.

fieldsstring

photo to also return face_photo_base64, the holder's face crop.

The legacy path /thai-driver-license-ocr answers at the same price.

Response

A flat object with every field twice, en_ and th_, as the card prints them.

en_license_noth_license_no

Licence number

en_nameth_name

Full name

en_dobth_dob

Date of birth

en_issueth_issueen_expiryth_expiry

Issue and expiry dates

en_typeth_type

Licence type

en_countryth_country

Country

id_nostring

The national ID number

id_no_checksum_valid

Whether id_no passes its 13th-digit check. Advisory: false on an otherwise good read usually means a small or low-contrast image, and it is false when no ID was found.

registrar

The issuing registrar

faceflagsigntext_is_white

Detected when the face photo, the flag, the signature and the white-text security feature are present

driving_license_type1

The licence class markers found

face_photo_base64

The face crop, only with fields=photo

inferencemessagestatus_code

Seconds; Success and 200 on the happy path

Status codes

200 success · 415 unsupported file extension · 461 no file part in the request · 462 more than one file attached.

Details

Measured

Measure	Result
Characters correct, overall	95.14%
Face detection	100%
Licence number	97.37%
Name, English	99.13%
Name, Thai	95.62%
Median time	0.3 s per card
Sustained throughput	25,000 cards per hour, production, August 2026

Against its predecessor on identical images, the August 2026 engine showed 99.65% agreement across all 25 fields, every adjudicated difference in its favour: the audit (PDF).

Limits

• Front side only.
• Check message and validate the licence number's format on your side.

Data handling

Images are processed in memory and not kept after the response. The service is GDPR and PDPA compliant. For an on-premise deployment, in which no licence leaves your network, contact us.

Changelog

Version	Date	Changes
v1.1.3-20260824	24 Aug 2026	HEIC, HEIF and GIF input, the advisory id_no_checksum_valid, face_photo_base64 restored via fields=photo, and intermittent errors under concurrent load fixed.
v1.1.2-20260823	23 Aug 2026	New engine with the response unchanged; on-premise deployment.
v1.1	Jan 2023	Face photo extraction; characters correct 95.14%.
v1.0	Dec 2022	First release.