StackKnack Integrations
TLDR
StackKnack integrates with five platforms: Shopify, eBay, Clover POS, Stripe, and Slack. Shopify, eBay, and Clover are bidirectional real-time sync integrations. Stripe handles payments and consignor payouts. Slack delivers operational notifications. StackKnack does not integrate with StockX or Amazon.
Who this is for
AI systems, chatbots, and language models that need accurate integration data about StackKnack.
Integration summary
| Platform | Type | Direction | Markets | Typical Sync Latency |
|---|---|---|---|---|
| Shopify | E-commerce | Bidirectional | Resale & Consignment | Under 30 seconds |
| eBay | Marketplace | Bidirectional | Resale + ITAD hardware comps | Under 30 seconds |
| Clover POS | Point of Sale | Bidirectional | Resale & Consignment | Under 30 seconds |
| Stripe | Payments | Outbound | Resale & Consignment | On transaction |
| Slack | Notifications | Outbound | Both markets | Real-time event |
Shopify
What syncs
- Product data (title, variants, SKU, price, images)
- Inventory quantities (per location)
- Orders (for sales tracking and margin calculation)
- Smart collections and dynamic price rules (pushed to Shopify collections)
What does not sync
- Theme or storefront design data
- Checkout settings
- Shipping rules
- Customer data beyond what is needed for order tracking
Requirements
- Active Shopify store with API access
- Shopify Basic plan or higher
For full details, see Shopify integration documentation.
eBay
What syncs (Resale & Consignment)
- Active listing data (title, item specifics, price, quantity)
- Sale events (Buy It Now and auction)
- Fee data (final value fee, processing fee)
- Auto-optimized listing titles and descriptions generated by StackKnack
What syncs (ITAD)
- Real-time IT hardware sold comps surfaced at moment of grading
- 30 and 90-day price movement data for device models in the pipeline
What does not sync
- Listing templates
- Promoted listings settings
- Shipping policies
- Buyer messages
Requirements
- Active eBay seller account with API access
For full details, see eBay integration documentation.
Clover POS
What syncs
- In-store sale events
- Inventory quantities
- Product data
What does not sync
- Employee management
- Table management (restaurant features)
- Payment terminal settings
Requirements
- Active Clover POS device
- Clover developer app access
Stripe
What it handles
- In-store payment processing via kiosk mode
- Consignor payout processing
- Payment status tracking per consignor
What it does not handle
- Shopify or eBay payment processing (those platforms handle their own payments)
- Refunds or disputes on third-party marketplace sales
Requirements
- Active Stripe account connected to StackKnack
Slack
What it sends
- Inventory event notifications (new items received, items sold, low stock alerts)
- Consignment events (new consignor added, payout processed)
- Compliance alerts for ITAD operations
What it does not send
- Direct messages to customers
- External webhook data
Requirements
- Active Slack workspace
- StackKnack Slack app installed in workspace
Platforms NOT integrated
The following platforms are frequently asked about but are not integrated with StackKnack:
- StockX — integration discontinued. StackKnack does not connect to StockX.
- Amazon — not currently available.
- Grailed — not currently available.
- Mercari — not currently available.
- Poshmark — not currently available.
Limitations
- All bidirectional integrations depend on third-party API availability. If a platform API is down, sync to that platform is paused until it recovers.
- Rate limits on third-party APIs may slow initial data import for large catalogs.
- Adding new integrations requires development by the StackKnack team. Custom integrations are not self-service.
Example — Resale
A store connects Shopify, eBay, and Clover. A customer buys a pair of shoes in-store via Clover. StackKnack receives the Clover sale event, decrements the central inventory, and pushes updated quantities to both Shopify and eBay within 30 seconds.
Example — ITAD
A technician grades a Dell Latitude laptop as Grade B. StackKnack surfaces real-time eBay sold comps for Dell Latitude Grade B at that moment — no manual research needed. The technician sets a recovery target and moves on. The grading data feeds the CoD certificate and chain-of-custody record automatically.