SneakerSpy
Bulk Listing · Cross-Listing · Finance & Accounting
Pricing
Free to start
Freemium
How it works
—
What it does
Chrome extension: one-click relisting, bulk actions, scheduled auto-relist for Mercari. Automation may conflict with Mercari TOS (bot/scraper clause) — ban risk.
Platform compatibility
Where it actually works, and what it does badly. Updated when vendors ship changes, not when we find time.
Discogs
Global · official API
Browser extension mapping Discogs release metadata, tracklists, and media conditions directly into populated eBay music listing forms.
GOAT
US, Global · no official API
On-page Chrome extension calculating net margins, platform fees (12.5% GOAT fees), bid/ask spreads, and ROI on GOAT sneaker listings.
Mercari
US, JP · official API
StockX
Global · official API
Browser extension injecting real-time profit calculators, bid/ask spread analysis, COGS tracking, and fee deduction directly onto StockX and GOAT listings.
eBay
Global · official API