Verify Checksum
View All EAN Lookup APIs →Verify whether an EAN barcode has a valid checksum digit. Use before lookup or storage to ensure barcode integrity, reduce invalid requests, and validate user or scanner input.
API Features
Check-digit verification Validate EAN algorithm without performing a full product lookup
Lightweight call One GET returns valid/invalid; no product payload
Pre-lookup gate Validate barcode before calling lookup to cut invalid requests
Pipeline-friendly format Optional JSON or XML for validation workflows
Live API Demo
API Response (JSON)
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Use Cases
- Form validation: verify EAN before submit to catch typos and bad codes
- Scanner and manual input QA: validate barcode before save or lookup
- Import and ETL: filter invalid EANs before bulk lookup or insert
- Dev and testing: plug checksum check into barcode generation or tests
- Data quality: ensure only valid EAN/GTIN format is stored or sent