# Services from pal-nano-catalog-audit.onrender.com on Zero

> pal-nano-catalog-audit.onrender.com serves 3 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/pal-nano-catalog-audit.onrender.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/pal-nano-catalog-audit.onrender.com/health.json

## Services

- [PAL AIEO Catalog Audit](https://www.zero.xyz/c/pal-aieo-catalog-audit-09e72d57/llms.txt): $0.01/call via x402. Audits 1–100 Shopify or Google Merchant Center product catalog records for feed errors, duplicate IDs, invalid GTINs, malformed URLs/prices, availability issues, and brand/MPN inconsistencies before submission.
- [PAL GTIN Check](https://www.zero.xyz/c/pal-gtin-check-c6dbaea7/llms.txt): $0.01/call via x402. Validates up to 100 GTIN-8, UPC/GTIN-12, GTIN-13, or GTIN-14 product identifiers including check digit verification
- [PAL Feed Diff](https://www.zero.xyz/c/pal-feed-diff-14d3155b/llms.txt): $0.01/call via x402. Compares two product-feed snapshots (before and after, up to 100 rows each) and returns which items were added, removed, or had fields changed.

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)