CardSight AI is a complete trading card identification and data platform for developers. One unified trading card API spans baseball, basketball, football, hockey, and Pokémon TCG — with visual card recognition, real card sales data and graded card pricing sourced from eBay, Fanatics Collect, COMC, and other public marketplaces, free PSA population reports at the card and set level, and catalog access through REST endpoints and MCP for AI assistants.