Add-ons: connect more, do more
The app runs on its own: inventory, the till, your website, holds, consignment and reports need nothing else. Prices, listing and card recognition come from outside services. You sign up with the ones you want and paste their key into Settings; each one switches more on.
Where most people start
Trading cards: eBay developer keys and TCG Price Lookup. Sports cards: eBay developer keys and Card Hedge. A shop counter: add Square. Everything else can wait until you want it.
The services bill you directly, at their prices — we don't mark them up. On every plan, including hosted, you bring your own keys. Costs below were checked in October 2026; providers change them, so check their page before signing up.
eBay developer keys
Strongly recommended- What it switches on
- Creating and updating eBay listings, syncing eBay sales, and searching eBay for deals.
- Without it
- You can still export listings and record eBay sales by hand.
- Cost
- Free
- developer.ebay.com
TCG Price Lookup
Recommended for TCG- What it switches on
- TCGplayer market prices, eBay sold averages and graded values for every trading card game.
- Without it
- Trading card prices come only from the other sources you connect.
- Cost
- Free tier; $49.99/mo for commercial use with full history
- tcgpricelookup.com
Card Hedge
Recommended for sports- What it switches on
- The sports card catalog and sold prices: checklists, parallels and print runs.
- Without it
- Sports cards are entered by hand and priced from other sources.
- Cost
- Paid API; quoted on request (about $49/mo)
- cardhedger.com
PriceCharting
Optional- What it switches on
- A second opinion on raw and graded prices, used to spot when sources disagree.
- Without it
- Fewer sources to cross-check against.
- Cost
- $49/mo (Legendary subscription)
- pricecharting.com
CardSight
Optional- What it switches on
- Identifying cards from a photo, so a scanned stack lists itself.
- Without it
- Scan to list asks you to pick each card from a search.
- Cost
- Free for 750 a month; from $14.95/mo
- cardsight.ai
Google Gemini
Optional- What it switches on
- Cleaner listing titles and descriptions, and plain-English insights on your numbers.
- Without it
- Listings use the card's own details; insights are off.
- Cost
- Free tier; pay-as-you-go after (cents a month for most shops)
- aistudio.google.com
PSA cert look-up
Optional- What it switches on
- Slab details filled in from the cert number.
- Without it
- You type the slab details yourself.
- Cost
- Free
- psacard.com/publicapi
Square
Shops- What it switches on
- Card payments at the till, recorded against the sale automatically.
- Without it
- Use any card machine and mark the sale as "card".
- Cost
- No monthly fee; Square's normal card fees
- squareup.com
Shopify
Optional- What it switches on
- Your stock listed in a Shopify store, kept in step with every other channel.
- Without it
- Your own built-in website still sells your stock.
- Cost
- Your Shopify plan
- shopify.com
Backblaze B2 (backups)
Self-hosted (included on hosted plans)- What it switches on
- An encrypted copy of every nightly backup somewhere other than your server.
- Without it
- Backups stay on your server only.
- Cost
- First 10 GB free; about $7 per TB a month
- backblaze.com
Email sending (SMTP)
Recommended- What it switches on
- Reliable delivery for hold confirmations, receipts and alerts.
- Without it
- Uses the server's built-in mail, which some inboxes send to spam.
- Cost
- Usually free with your web host's email
- From your web host
Discord
Optional- What it switches on
- New arrivals and events posted to your Discord channel.
- Without it
- Nothing is posted.
- Cost
- Free
- From your Discord server settings
Coming soon: all-inclusive
A hosted plan with the price services already connected, so there are no outside accounts to open. It will include monthly allowances for price look-ups and card scans, and you'll still be able to add your own keys for more. We're finalising terms with the data providers now.
Join the waitlist and we'll email you when it opens, with an early-sign-up price.