# Services from drift.slidingbox.ai on Zero

> drift.slidingbox.ai serves 2 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/drift.slidingbox.ai
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/drift.slidingbox.ai/health.json

## Services

- [Slidingbox URL Drift Witness](https://www.zero.xyz/c/slidingbox-url-drift-witness-c9fbc7f4/llms.txt): $0.05/call via x402. Checks whether a given URL has changed since its last observation, reporting differences in status, redirects, content type, page sections, and loaded scripts (including PCI DSS 11.6.1-relevant script fingerprinting).
- [Slidingbox URL Drift Witness](https://www.zero.xyz/c/slidingbox-url-drift-witness-8d68a3c5/llms.txt): $0.5/call via x402. Monitors a URL for changes by comparing each new check against all prior checks, detecting differences in status, redirects, content type, page sections, and loaded scripts (including PCI DSS 11.6.1 script-change detection).

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)