Reselling Operations Platform

Every stage of the flip,
under one roof.

Sourcery is an integrated suite of tools for eBay resellers — from sourcing auctions to publishing listings to managing inventory and P&L.

Get Early Access See the Tools

The Platform

Three tools. One workflow.

Each tool handles a distinct phase of the reselling lifecycle and shares a single database, so data flows automatically from source to sale.

🐶
Bloodhound
Auction Research

Scans live auction sites, researches eBay sold comps and Amazon prices, estimates freight costs, and scores each lot for profitability — before the auction closes.

  • Live auction scraping across multiple platforms
  • eBay sold-price comps via Marketplace Insights API
  • Amazon pricing & Keepa sales-rank lookup
  • FBA & eBay margin calculators with buyer's premium
  • LTL freight estimation via CH Robinson API
  • AI-powered item identification (Claude vision)
  • Watchlist, bid tracking, and smart scan scheduling
📚
Catalist
eBay Listing

Turn won auction lots into live eBay listings with minimal manual work. Photos are processed automatically; AI generates titles, descriptions, and item specifics ready for one-click publish.

  • Mobile photo capture with background removal
  • Vision AI identifies item, brand, condition, accessories
  • Pulls research data from Bloodhound automatically
  • eBay Sell API: inventory, offers, and publish
  • Category auto-detection & item specifics per category
  • Keyword-optimized titles using sold-listing data
  • Bulk publish for entire auction lots
🔭
Watchtower
Inventory & Management

Flipwise-style sales and inventory management synced directly to your eBay account. Tracks acquisition costs, aging inventory, fees, refunds, and generates tax-ready exports.

  • Auto-sync sales via eBay Sell & Finances APIs
  • Full fee reconciliation against eBay payout reports
  • Inventory aging: 90 / 180 / 365-day reports
  • ROI, margin, sell-through rate, time-to-sell
  • Auto-end & smart relist scheduling
  • Mileage log & expense tracking
  • One-click tax exports

Built on the eBay Developer Platform

Sourcery integrates directly with eBay's official APIs to power pricing research, listing automation, and sales synchronization — all within eBay's developer program terms of service.

  • eBay Marketplace Insights API — sold listing data for comp pricing and title optimization
  • eBay Sell Inventory & Offer APIs — create and publish listings programmatically
  • eBay Sell Finances API — payout and fee reconciliation
  • eBay Browse API — category and item specifics lookup

eBay APIs used by this application:

Marketplace Insights Sell Inventory Sell Offer Sell Finances Browse Taxonomy

All data retrieved from eBay APIs is used solely within this application for the benefit of the application owner's own reselling business. No eBay data is sold, redistributed, or shared with third parties.