CardGauge
CardGauge tells you what a trading card actually sells for. Ask about a baseball, basketball, football, hockey, soccer or Pokémon card. CardGauge looks up completed sales from the last 30 days (eBay, Fanatics Collect and TCGplayer) and returns: - the median sold price, with the number of sales and the range - prices by grade (PSA, BGS, SGC and others) where graded copies sold - an honest "no single price" with the reason, when sales are too few or cover several different cards, and which cards turned up so you can say which one you have Asking prices are never counted as sales. Other parallels, lots, autographs and graded copies are kept out of an ungraded price. Every answer links to the full result on cardgauge.com, where you can see the sales behind it. The connector is read-only. It needs no account and doesn't see your conversation, only the card description the assistant sends.
Details
https://stock-card-api.onrender.com/mcp · streamable-http
