FeeChange: A Paper Trail for Marketplace Fees

Field notes

FeeChange compares fee rules with the wording published on each platform’s official fee page, then records detected changes with check times and effective dates. The homepage currently lists five platforms: eBay, Etsy, Gumroad, PayPal, and Shopify. Shopify has fourteen active verified rules, while Etsy has no verified data because its source blocks automated checks. The site says checks run roughly every six hours and separates uncertain extractions into a Needs review state rather than presenting them as confirmed fees.