# Services from agentcheck-kohl.vercel.app on Zero

> agentcheck-kohl.vercel.app 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/agentcheck-kohl.vercel.app
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/agentcheck-kohl.vercel.app/health.json

## Services

- [AgentCheck Market Snapshot](https://www.zero.xyz/c/agentcheck-market-snapshot-b59ce560/llms.txt): $0.005/call via x402. Returns a dated JSON snapshot of the x402 agent-payments market, including Bazaar listings, seller counts, 30-day paid call volume, market concentration, and registry health metrics.
- [AgentCheck x402 Bazaar Seller CSV](https://www.zero.xyz/c/agentcheck-x402-bazaar-seller-csv-f6229000/llms.txt): $0.02/call via x402. Returns a ranked CSV of every seller in the x402 Bazaar (2,046 rows) with 30-day paid call metrics, pricing, networks, and sample descriptions
- [AgentCheck Seller Quality Report](https://www.zero.xyz/c/agentcheck-seller-quality-report-38f0ef4d/llms.txt): $0.002/call via x402. Returns an independently measured quality report for an x402 API seller, based on real paid test purchases evaluating price accuracy, provenance consistency, latency, and receipt behavior.

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)