BayScope by Tommsel

Listing scores, sell-through rates, keyword research & price intelligence directly on eBay.

Some features may require payment

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About this extension

BayScope analyzes eBay listings directly in your browser. Get instant insights on any product page:

Listing Score – Overall rating (0-100) based on title quality, pricing, images, shipping and more.

Price Intelligence – Compare prices across similar listings with median, range and market position.

Fee Calculator – Accurate eBay fee breakdown including final value fees, international fees and payment processing.

International Comparison – Compare prices across eBay domains (.de, .com, .co.uk, .fr, .it, .es) to find the best deals. (Pro)

Seller Tracking – Monitor competitor sellers and track their listing activity.

Keyword Research – Discover trending keywords and search volumes for your niche.

Free tier includes 10 analyses/day. Pro (€1.99/month) unlocks 100 analyses/day, international comparison, CSV export and more. 3-day free trial included.

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Permissions and data

Required permissions:

Access your data for sites in the ebay.at domain
Access your data for sites in the ebay.be domain
Access your data for sites in the ebay.ca domain
Access your data for sites in the ebay.ch domain
Access your data for sites in the ebay.co.uk domain
Access your data for sites in the ebay.com.au domain
Access your data for sites in the ebay.com domain
Access your data for sites in the ebay.de domain
Access your data for sites in the ebay.es domain
Access your data for sites in the ebay.fr domain
Access your data for sites in the ebay.ie domain
Access your data for sites in the ebay.it domain
Access your data for sites in the ebay.nl domain
Access your data for sites in the ebay.pl domain

Optional permissions:

Access your data for sites in the ebay.com domain
Access your data for sites in the ebay.de domain
Access your data for sites in the ebay.co.uk domain
Access your data for sites in the ebay.fr domain
Access your data for sites in the ebay.it domain
Access your data for sites in the ebay.es domain
Access your data for sites in the ebay.nl domain
Access your data for sites in the ebay.com.au domain
Access your data for sites in the ebay.ca domain
Access your data for sites in the ebay.at domain
Access your data for sites in the ebay.ch domain
Access your data for sites in the ebay.pl domain
Access your data for sites in the ebay.be domain
Access your data for sites in the ebay.ie domain
Access your data for extensionpay.com

Data collection:

The developer says this extension doesn't require data collection.