Catalogr

Resolve supplier barcodes (GTIN) to Amazon ASINs using the SP-API Catalog Items endpoint.

What it does

• Normalizes supplier barcodes (EAN/UPC/GTIN) into GTIN-14
• Resolves matching ASINs via Amazon SP-API (Catalog Items)
• Exports results: mapped.csv (GTIN - ASIN) and unmapped.csv
• Shows run analytics: cache hits, API calls, processing time

How it works

1. Upload a supplier file (.xlsx) containing barcodes
2. Select your marketplace
3. Catalogr resolves and exports results

Security and data

• Passwordless login (magic link)
• Rate limiting and upload safety checks
• Per-job outputs stored in isolated directories

Current data sources

• Amazon SP-API Catalog Items endpoint
• Supplier-provided barcode files (uploaded by the user)
• No pricing, fees, or seller performance data

Data sources and compliance

• Data is retrieved exclusively via Amazon SP-API.
• No scraping, no third-party resold data.
• Catalogr complies with Amazon Acceptable Use Policy.
• No seller performance or Brand Analytics data is shared between users.