# Services from api.cardhedger.com on Zero

> api.cardhedger.com serves 6 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/api.cardhedger.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/api.cardhedger.com/health.json

## Services

- [CardHedge Card Match](https://www.zero.xyz/c/cardhedge-card-match-a99c899e/llms.txt): $0.01/call via x402. Matches a natural language card description to the best matching card in the CardHedge trading card database.
- [Card Hedge All Prices by Card](https://www.zero.xyz/c/card-hedge-all-prices-by-card-22397a6b/llms.txt): $0.01/call via x402. Returns all latest prices for a specific trading card across every available grading tier and grade level
- [Card Hedge Comparable Sales (Comps)](https://www.zero.xyz/c/card-hedge-comparable-sales-comps-11bcb315/llms.txt): $0.02/call via x402. Returns comparable sales prices for a specific trading card, with anomaly filtering and optional time-weighting via WMA algorithm.
- [Card Hedge - Prices by Grader Certificate](https://www.zero.xyz/c/card-hedge-prices-by-grader-certificate-e72e7a95/llms.txt): $0.01/call via x402. Looks up trading card information and historical sale pricing by a grader certificate number (e.g. PSA cert).
- [Card Hedge FMV by Certificate Number](https://www.zero.xyz/c/card-hedge-fmv-by-certificate-number-29297b72/llms.txt): $0.01/call via x402. Returns the Fair Market Value (FMV) for a graded trading card identified by its grader certificate number.
- [Card Hedge Card Search](https://www.zero.xyz/c/card-hedge-card-search-3ab15ffe/llms.txt): $0.01/call via x402. Search and filter trading cards by player, set, subset, category, card number, rookie status, and more with paginated results.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)