HumCity
Sign inStart Listing Faster
sports card listing software

Sports card listing software built for high-volume sellers

Photograph 100 cards. Get 100 optimized eBay listings. Skip every form.

Start free — 50 listings/mo View demo
The problem

Listing sports cards on eBay is the worst part of being a card seller.

If you're a card breaker, LCS owner, or eBay reseller moving meaningful volume, you already know the math. Each sports card listing on eBay Seller Hub takes between four and ten minutes once you account for selecting the right category, typing the player name and year, choosing the manufacturer, picking the correct set, entering the card number, picking the right parallel, picking the grading company, picking the grade, typing the cert number, choosing condition, writing a title that fits in 80 characters, and finding a comp to price against.

Multiply that by a 50-card sourcing haul and you've burned the entire day on data entry instead of buying, grading, shipping, or growing the business. Most sellers respond by hiring listers, which moves the cost from time to payroll but doesn't fix the fundamental problem: every field on every listing is being typed by a human even though every field can be read from the image.

Sports card listing software has existed for years, but most of it is a thin wrapper around the same form. Templates, drop-downs, spreadsheets, CSV imports — they all assume a human is doing the cognitive work of identifying the card. HumCity is built around the opposite assumption: the AI identifies the card, and you spend your time on judgment calls instead of typing.

What you get

Capabilities built for this exact workflow.

  • AI card identification from a single photo

    Drop a front-and-back photo of any sports card and HumCity reads the player, year, manufacturer, set, card number, parallel, and printing variation. The model has been trained on every major sport — baseball, basketball, football, hockey, soccer, MMA, racing — and handles vintage tobacco-era cards through modern Topps Chrome and Panini Prizm releases. Borderline calls (e.g. ambiguous parallel patterns) are flagged for your review rather than guessed silently.

  • PSA, BGS, SGC, CGC slab recognition

    Photograph the slab label and HumCity extracts the grading company, numerical grade, qualifier (OC, MK, ST), cert number, and population data when available. The grade flows directly into the eBay item specifics for the Trading Cards category, and the cert number is included in the title for searchability. This works for every modern slab — PSA 10s, BGS 9.5 Black Labels, SGC 9.5s, CGC Pristine 10s.

  • Comp-based pricing from recent eBay sold listings

    After identification, HumCity pulls the last 90 days of completed eBay sales for the exact card, set, parallel, and grade, then surfaces a suggested price range alongside the median. You see the comps that drove the suggestion so you can sanity-check before publishing. For thin-comp cards, the system widens the search and tells you the comp confidence is low.

  • Pile Mode™ bulk upload for high-volume intake

    Drop up to 500 card images in a single batch. The AI processes the queue in parallel so a 100-card upload is usually ready for review in under two minutes. Multi-photo items (front + back, front + slab) are auto-grouped so you don't end up with duplicate listings. Duplicate detection runs across the queue so the same card photographed twice gets merged before publish.

  • Auto-filled eBay item specifics

    Every sport, every set, every parallel has its own eBay-required item specifics. HumCity knows the schema for the Trading Cards category and prefills every required and recommended field — Sport, Year Manufactured, League, Team, Player, Manufacturer, Set, Card Number, Features, Parallel, Variation, Autographed, Memorabilia, Print Run. The listings pass eBay's listing quality checks on the first try.

  • Keyboard-first review queue

    Most of the time-savings come from a review interface that lets you approve a card in under a second. Arrow keys to navigate, J/K to approve/edit, Cmd+Enter to publish — designed for breakers and dealers who think in stacks. Bulk-edit lets you change the grading company, condition, or shipping policy across an entire selection at once.

  • Direct eBay API publishing

    Listings ship straight to your eBay store via the official Trading API. Your existing business policies (shipping, payment, returns) sync automatically and apply to every listing. Scheduled launches let you queue 200 cards to go live at peak buyer hours instead of dropping at midnight.

  • Variation and lot listings

    Card lots, team sets, and box breaks are first-class. Group multiple cards into a single lot listing with auto-generated descriptions, or split a multi-card photo into individual listings. Multi-quantity sealed wax (boxes, packs, blasters) ships as fixed-price inventory items with quantity tracking.

Use cases

Built for the way real resellers work.

Card breakers running daily box rips

Breakers move hundreds of cards per day from rip sessions, with strict turnaround windows from break-close to listing. HumCity ingests a full rip pile in one Pile Mode™ upload, identifies every card, and ships the queue to eBay before the next break starts. Sealed wax leftover from cases flows in as multi-quantity inventory automatically.

LCS owners managing trade-in volume

Local card shops take in trade-ins constantly — singles, partial sets, slab lots, junk wax. HumCity lets shop owners shoot the trade as it comes in and have the listings ready before the customer leaves with their store credit. Inventory items can live as drafts in HumCity until you decide whether to list them on eBay, hold for a show, or put them in the case.

Graded card flippers focused on PSA returns

If you're submitting cards to PSA, BGS, or SGC and listing them when they come back, the slab label is the only thing that matters for the listing. HumCity reads the label in milliseconds, pulls the population report when available, and surfaces comps for the exact pop-1 / pop-5 / pop-10 cohort so you price against the right comp set instead of the broader grade.

Vintage and pre-war card specialists

Vintage cards (T206, Goudey, Bowman, early Topps) have idiosyncratic data — back variations, ad backs, paper stock, registration. HumCity recognizes the major vintage sets and surfaces the variation-specific fields so you don't ship a 1952 Topps listing without the right back-variation specific. For raw vintage, the model suggests a centered/corners/edges/surface assessment band and flags it for your review.

How it works

From inventory to live listings in three steps.

01

Drop your card photos

Front-and-back stacks, raw piles, or individual scans. HumCity ingests every format — phone shots, scanner output, DSLR raws, slab images.

02

AI extracts the details

Player, year, brand, parallel, condition, slabbed grade — read from the image automatically. Borderline calls flagged for review.

03

Review and publish

Approve the queue from a keyboard-first interface. Listings ship to eBay with category, item specifics, and pricing prefilled and ready to go live.

FAQ

Common questions

Can HumCity read PSA, BGS, SGC, and CGC slab labels?
Yes. HumCity reads the slab label and pulls the grading company, numerical grade, qualifier (OC, MK, ST), and certification number. Modern label designs from all four major grading companies are supported, including PSA Half-Grades, BGS Black Labels, SGC Pristine, and CGC Perfect 10.
Does it work for raw, ungraded cards?
Yes. HumCity infers condition from the image — corners, centering, surface, edges — and suggests a condition band (Near Mint, Excellent, Very Good) with a flag for borderline calls. You always have the final say before publishing, and a one-keystroke override lets you accept the suggestion or pick a different grade.
How fast is bulk upload?
Most users list 50 cards in under 10 minutes — about 12 seconds per card including review time. The AI inference itself runs in parallel, so a 100-card Pile Mode upload is typically ready for review in under two minutes after the photos finish uploading.
Which marketplaces are supported?
eBay is live today via the official Trading and Inventory APIs. Whatnot integration is in beta for live sellers. Mercari and TCGplayer integrations are on the roadmap. You can build inventory in HumCity today and the listings carry over when new marketplaces ship.
Can I list sealed wax — boxes, packs, blasters?
Yes. Sealed wax ships as multi-quantity fixed-price inventory items with stock tracking. The AI recognizes the product (e.g. "2023 Topps Chrome Hobby Box") and prefills the correct eBay category and item specifics for sealed products.
Does it handle multi-card lots and team sets?
Yes. Lot listings are first-class. You can drop a photo of a team set or partial set and HumCity drafts a single lot listing with an auto-generated description listing every card included. The lot can be priced as a single SKU.
What about parallels and variations like refractors, prizms, and printing plates?
HumCity is trained on modern parallel patterns and recognizes refractors, prizms, mosaic, color match, printing plates, gold/silver/black variants, and most numbered parallels when visible in the image. The serial number is read when the card is numbered and surfaced in the title.
Can I import my existing eBay card listings into HumCity?
Yes. On first connection, HumCity pulls your active and recently-ended listings into the dashboard. You can bulk-edit titles, item specifics, prices, and shipping policies across thousands of listings at once and push the revisions back to eBay via the API.
Does HumCity work for non-sport collectibles too?
Yes. The same workflow applies to TCG (Pokémon, Magic, Yu-Gi-Oh), non-sport memorabilia (Pop! figures, Funko, autographed photos), and other collectibles. Pokémon has a dedicated workflow with set-specific recognition.
Is HumCity safe to use on my main eBay account?
Yes. HumCity uses official eBay OAuth and the eBay API — we never log into your account via password and we never violate listing-quality policies. The listings we publish look identical to listings you'd create in Seller Hub from eBay's perspective.
Is there a free tier?
Yes. Every account gets 50 free listings or revisions per month with no credit card required. Most resellers can fully evaluate the AI workflow, image recognition, and bulk upload before deciding to upgrade. Paid plans start at $10/month for 500 listings and scale with volume.
Which AI models power HumCity?
HumCity routes through Lovable AI Gateway, which selects between leading vision-language models from OpenAI and Google (GPT-5 / Gemini 2.5 / 3.x families) depending on the task. We constantly evaluate new models and silently upgrade the routing — you get the best available accuracy without changing how you work.
Related

Keep exploring HumCity

Pokémon listing softwareAI eBay listing generatorBulk listing tool for eBayeBay listing software

Start with 50 free listings

No card required. Connect your store and drop your first photos in under 60 seconds.

Get started See pricing