Most card dealers know the feeling. You sell a Luka Doncic rookie on eBay for $180, feel pretty good about it, then spend twenty minutes trying to figure out what you actually made after eBay fees, promoted listing costs, shipping, and the original price you paid three months ago. By the time you piece it together across three tabs, you’ve already moved on to the next sale and the number is gone forever.
SportsCardNetwork was built specifically to fix that. It’s a full back-office platform for card dealers, handling everything from adding inventory to listing across multiple marketplaces to calculating real profit per card, with actual fee data pulled straight from eBay’s Finances API. The platform currently tracks 12,000+ cards, has logged $225K+ in revenue, and processed 4,200+ orders for its dealer base.
This isn’t a collector app. It’s built for people running an actual card business, whether that’s a part-time eBay reseller or a shop owner moving thousands of cards a month. The spreadsheet era for serious card dealers is looking increasingly hard to justify.
Key Features of SportsCardNetwork
AI Photo Scanning and Card Identification
Snap the front and back of a card on your phone and the AI fills in the player, year, set, card number, and parallel automatically. No manual typing. For graded slabs, you can enter a PSA, BGS, SGC, or CGC cert number and the platform pulls the card details, grade, and photo on its own. Bulk CSV import is also available for dealers migrating a large existing catalog.
Multi-Channel Listing and Sync
One master inventory pushes to eBay, Shopify, Square, MySlabs, Walmart, and your own storefront simultaneously. Sell a card on any channel and it updates everywhere else instantly. No more selling the same card twice because your eBay and Square inventories drifted out of sync over a busy weekend.
Live Comp Pricing and Automatic Repricing
When you list a card, SportsCardNetwork shows you live comps from recent sales so your price is grounded in real data. It also runs weekly repricing automatically, pushing fresh prices to every channel without you touching anything. Stale listings sitting at wrong prices are one of the quietest ways dealers leave money on the table.
True Profit Calculation After Real Fees
This is the core of the product. SportsCardNetwork pulls from eBay’s Finances API, not just the order data. That means it captures promoted listing ad fees, final value fees, insertion fees, and shipping costs as they actually appear on your account, not a rough estimate. The result is a real profit number per card, plus tax-ready books that map cleanly to Schedule C come January.
Grading Tracker and PSA Submission Management
Track multiple PSA submissions in one place, including status, service level, cost basis per card, and post-grade comp values. When a card comes back graded, the inventory record updates with the new grade and cert number. It closes the loop between what you sent out and what actually came back worth selling.
Marcus at 9 PM, Trying to Close the Books
Marcus runs a part-time eBay card business out of his garage in Columbus, Ohio. By mid-2025 he had around 400 active listings spread across eBay and Square, with a separate spreadsheet tracking PSA submissions and another one for cost basis. Every Sunday evening he’d spend two hours reconciling fees from his eBay seller hub into his Google Sheet. He knew his revenue. He had no idea about his actual profit.
At 9 PM on a Tuesday in October, Marcus connected his eBay account to SportsCardNetwork. The platform pulled his entire active catalog in about 30 seconds: titles, photos, pricing, the lot. He then ran a cost-sheet import to attach cost basis to his existing inventory in bulk.
By 9:45 PM he was looking at a dashboard showing true profit per card, with real eBay fees applied, across all 400 listings. He found three cards he’d been listing below cost after fees were factored in. He repriced them. He also spotted that his promoted listing spend was eating about 11% of his monthly revenue, a number he’d never calculated before because it lived in a separate eBay report he never opened.
That one Tuesday evening changed how Marcus prices everything going forward. The spreadsheet hasn’t been opened since.
How SportsCardNetwork Moves a Card from Hand to Sold
Step 1: Add the Card
Scan a photo, look up a cert number, import a CSV, or connect a sales channel to pull an existing catalog. Multiple entry paths mean you work the way you already work.
Step 2: List Everywhere
Push the card to every connected channel from one screen. eBay, Shopify, Square, MySlabs, and Walmart all update from the same master record.
Step 3: Price on Real Comps
Live sold data surfaces at listing time. Weekly automated repricing keeps every channel current without manual effort.
Step 4: Sell and Ship
Orders sync automatically from every channel. Buy a discounted, tracked shipping label in one click directly from the order screen.
Step 5: See the Real Number
After the sale, true profit is calculated using actual marketplace fees from eBay’s Finances API. Every card, every channel, every time.
Pricing
SportsCardNetwork runs on a flat monthly rate with no percentage taken from your sales, ever. A free account takes about 30 seconds to create and includes a 14-day free trial on paid plans. High-volume dealers can call 773-241-2622 to discuss options. For exact plan tiers and current pricing, check the pricing page directly on the site, as details may have been updated since this article was written.
Worth Trying If You Run a Real Card Business
If you’re selling more than 100 cards a month across any combination of eBay, Square, Shopify, or in-person, the spreadsheet is costing you time and probably money. SportsCardNetwork addresses the whole workflow: add inventory fast, list everywhere without duplicating effort, price to actual sold comps, and finally know what you made after every fee. The free account is a reasonable place to start.
