Turn supplier XLSX files into Amazon EU shortlists

Upload a supplier file. Catalogr matches EAN, UPC and GTIN barcodes to Amazon ASINs, checks sales rank, Buy Box and offer signals, estimates Amazon referral and FBA fees, and exports CSV shortlists for manual sourcing review.

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Example beta run

1,000 supplier GTINs processed in 6m22

This example run used Amazon SP-API to turn a supplier file into ASIN matches, Buy Box checks, and review-ready CSV exports.

1,000 GTIN processed

1,048 ASINs found

389 with Buy Box available

234 qualified candidates

Catalogr job summary for a 1,000 GTIN supplier file — Catalogr processed a 1,000 GTIN supplier file in 6m22 and produced a shortlist of products worth reviewing.

Workflow

From supplier file to review-ready CSV

Catalogr does not decide what to buy. It reduces a raw supplier file into a smaller, structured list for manual Amazon sourcing review.

Catalogr result funnel showing GTINs processed, ASINs found and qualified candidates — Result funnel showing how the supplier file is filtered from 1,000 GTINs to 234 products worth reviewing.

Catalogr CSV downloads for opportunities, full opportunities, rejected, mapped and unmapped exports — Download separate CSV files for opportunities, full audit data, rejected products, mapped GTINs and unmapped rows.

Catalogr opportunities CSV sample with score, grade, GTIN, ASIN, price, estimated profit, ROI, rank and offer data — Review-ready CSV output with ASIN matches, Amazon pricing signals, estimated profit, ROI, rank and offer data. Demo data is partially anonymized for confidentiality. Actual exports keep your original supplier GTINs and prices.

What Catalogr checks

Amazon signals in one supplier screening workflow

Barcode to ASIN matching

Detects barcode columns, normalizes EAN, UPC and GTIN values, then matches them to Amazon ASINs.

Rank and Buy Box signals

Checks sales rank, Buy Box availability, offer counts and FBA/FBM price signals through Amazon SP-API.

Estimated fees and ROI

Estimates referral fees, FBA fees, profit and ROI for screening purposes before manual review.

CSV exports for review

Exports opportunities, full audit data, rejected products, mapped GTINs and unmapped rows.

Outputs

opportunities.csv - light CSV shortlist of qualified products for manual review
opportunities_full.csv - full audit export with rank, Buy Box, pricing, dimensions, FBA fee and scoring fields
rejected.csv - rejected products with reject stage and reason
mapped.csv - GTIN to ASIN matches
unmapped.csv - rows where no ASIN was found

Built for screening, not automatic buying

Catalogr helps sellers reduce large supplier files into a smaller list of products worth reviewing. It does not guarantee profit, estimate exact sales volume, guarantee Buy Box ownership, guarantee ungating status, or make automatic buying decisions.

Data sources

Amazon SP-API Catalog Items for ASIN matching, sales rank and dimensions
Amazon SP-API Product Pricing for Buy Box and offer data
User-uploaded supplier XLSX files

Catalogr does not access buyer personal information, seller orders, advertising data, inventory data or Brand Analytics data.

Pricing

Catalogr offers a free beta plan with limited monthly usage. Paid plans start at €49/month and are based on monthly GTIN processing volume.

View pricing or contact support for Scale access.

Security and data

Passwordless login by magic link
Amazon seller account authorization through Amazon Selling Partner API
Rate limiting and upload safety checks
Per-job outputs stored in isolated directories
No uploaded supplier file is shared across users
No scraping and no third-party resold catalog data

Company

Catalogr is operated by 99global SASU.