Privacy Policy

Last updated: July 14, 2026

MADI (Meta Analysis Data Interface) helps card, comic, and collectible shops scan items, grade and price them, list them to their sales channels, and price customer collections for buy offers. This policy explains what data MADI collects, how it’s used, and who it’s shared with.

What we collect

• Account & shop details. Your name, email, and the shop you belong to, used to sign you in and keep each shop’s data separate and private to its members.
• Item photos. Photos you capture are analyzed to identify and price the item; condition grades are estimated by MADI’s own custom grading solution. A resized copy is stored so it can appear in your review/history and be listed later, then automatically deleted after about 7 days.
• Item & inventory data. Titles, categories, grades, prices, buy-offer cost, and the timeline of actions on each item, stored for your shop.
• Connected credentials. If you connect eBay, Shopify, Anthropic, or PriceCharting, those keys/tokens are stored encrypted at rest and used only to price and list on your behalf. We never see your passwords for those services.
• Usage. Basic counts (such as scans per period) to operate your plan, plus standard server logs for reliability and abuse prevention.

Who we share it with

We use a small set of service providers to run MADI, and share only what each needs to do its job:

• Anthropic — analyzes your item photos to identify the item and write the listing text.
• PriceCharting — provides market prices for matching.
• eBay and Shopify — receive a listing only when you choose to publish to them.
• Supabase (database, sign-in, photo storage) and Vercel (hosting) — store and serve the app.
• Stripe — processes subscription payments when billing is enabled; card details go directly to Stripe and are never stored by MADI.

We do not sell your data or share it for advertising.

Your control

• Disconnect any channel or remove a stored key at any time in Settings.
• Remove items you’ve scanned; stored photos are pruned automatically after about a week regardless.
• To export or delete your shop’s data, or close your account, contact us and we’ll take care of it.

Contact

Questions about this policy or your data can be directed to the shop owner who operates your MADI account, or to MADI support.