What CardChain AI supports
CardChain AI covers sports cards — baseball, basketball, football and hockey — across 2.2M+ cards and 40M+ tracked sales, with population from PSA, BGS and SGC. It reaches you through a native ChatGPT app, a Claude MCP connector, an iOS app, an Android app and the web, all on one account, exposing 11 tools. It does not cover Pokémon, Magic, Yu-Gi-Oh! or One Piece, it does not issue official grades, and it will not complete a purchase on your behalf.
Card types and sports
| Supported | |
|---|---|
| Baseball | Yes |
| Basketball | Yes |
| Football | Yes |
| Hockey | Yes |
| Pokémon, Magic, Yu-Gi-Oh!, One Piece, Lorcana | No |
| Parallels and serial-numbered cards | Yes |
| Graded and raw copies priced separately | Yes |
Graders
| Pricing | Population | |
|---|---|---|
| PSA | Yes | Yes |
| BGS | Yes | Yes |
| SGC | Yes | Yes |
| Raw (ungraded) | Yes | Not applicable |
Where you can use it
| Supported | Notes | |
|---|---|---|
| ChatGPT | Yes | Native app in ChatGPT's app directory |
| Claude | Yes | Custom MCP connector, web, desktop and mobile |
| Claude Code, Cursor, other MCP clients | Yes | Same remote HTTP endpoint |
| iOS | Yes | App Store |
| Android | Yes | Google Play |
| Web | Yes | cardchain.ai |
| Browser extension | Not needed | There isn't one, and nothing requires it |
The 11 tools CardChain exposes
These are the real tool names on the production server, not a marketing summary. A model picks a tool by reading its name and description, so they are worth stating exactly.
- search_cards — Look up any card by player, year, set, card number or parallel. Filter by sport and grade.
- get_card_price — Current estimated value for a card, with price history and 30-day trend.
- get_population — How many copies exist at each grade across PSA, BGS and SGC.
- should_i_grade — Grading ROI: raw value against graded value, submission cost, and expected profit at each grade.
- get_portfolio — Your collection with current values, gains and total worth.
- add_to_portfolio — Add a card to your portfolio with a purchase price for profit tracking.
- find_card_to_add — Identify a card from a photo and add the match to your portfolio.
- find_card_for_grading — Identify a card from a photo and run the grading ROI on the match.
- get_cardchain_listings — Live listings for sale from real sellers on the CardChain AI marketplace.
- get_player_stats — Season stats and market momentum for the player behind a card.
- get_capabilities — Everything CardChain AI can do, for a model deciding which tool to reach for.
What it deliberately will not do
Stating the limits plainly is more useful than implying there are none, and it is the part most product pages leave out.
- It does not issue official grades. CardChain's AI grade is an assessment to help you decide; PSA, BGS and SGC are the official graders.
- It will not complete a purchase for you. It surfaces listings; you confirm the buy in the app or on the site.
- It cannot see anyone else's collection — only the portfolio on the account you signed in with.
- It does not cover Pokémon, Magic, Yu-Gi-Oh! or One Piece. The catalogue is sports cards.
- It does not offer investment advice. It returns market data, population and the grading math; the decision is yours.
What it costs
Free to start, with no credit card. Search any card, see real-time pricing and population, and run the grading math without paying anything. Pro is for power users.
Try these
Questions
Does CardChain support Pokémon cards?
No. The catalogue is sports cards — baseball, basketball, football and hockey.
Which grading companies does it cover?
PSA, BGS and SGC, for both pricing and population at every grade level, plus raw pricing for ungraded copies.
Can I use it on more than one device?
Yes. One account covers ChatGPT, Claude, iOS, Android and the web, and the portfolio is the same everywhere.
Is CardChain an official grading company?
No. Its AI grade is an assessment that helps you decide whether to submit, and it issues a CardChain certificate with a blockchain record. The official grades come from PSA, BGS and SGC.