# Services from rtt.phoenix-ai.work on Zero

> rtt.phoenix-ai.work 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/rtt.phoenix-ai.work
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/rtt.phoenix-ai.work/health.json

## Services

- [Phoenix Zero L2 Health Oracle](https://www.zero.xyz/c/phoenix-zero-l2-health-oracle-68ae16d5/llms.txt): $0.01/call via x402. Returns real-time health metrics for 12 L2 chains including P99/P95 RTT, revert ratios, gas pressure, blob base fee, and an execution safety recommendation
- [Phoenix Zero Safe Check](https://www.zero.xyz/c/phoenix-zero-safe-check-b845fb1b/llms.txt): $0.01/call via x402. Pre-flight boolean safety check for L2 transactions, returning safe/unsafe status with a reason code and sequencer health metrics.

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)