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Phoenix Zero L2 Health Oracle
x402
Phoenix Zero L2 Health Oracle is a paid API for AI agents from rtt.phoenix-ai.work, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
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
Price / call$0.01
Success—
StatusUnknown
How this service works
Real-time L2 sequencer health across 12 chains (Base, Arbitrum, Optimism, zkSync, Blast, Linea, Mantle, Mode, Scroll, Taiko, Polygon zkEVM, Casper). Returns kernel-level P99/P95 RTT from eBPF probes, revert ratios, gas pressure, and execution recommendation.
Output
A JSON object containing per-chain health data (P99/P95 RTT in ms, stall flag, last-updated timestamp) for all 12 supported chains (Base, Arbitrum, Optimism, zkSync, Blast, Linea, Mantle, Mode, Scroll, Taiko, Polygon zkEVM, Casper), plus global metrics: L1 gas price in gwei, EIP-4844 blob base fee, Arbitrum revert ratio, Base revert ratio, an ISO 8601 UTC timestamp, and a top-level recommendation enum (SAFE_TO_EXECUTE, ELEVATED_RISK, HIGH_RISK, or STALL_DETECTED).
Example use cases
Pre-flight check before DeFi trade
“I'm about to execute a large swap on Arbitrum — can you check whether the sequencer is healthy, what the current revert ratio is, and whether Phoenix Zero says it's safe to execute or if I should wait?”
Gas timing for multi-chain deployment
“I need to deploy contracts to Base, Optimism, and zkSync — what's the current L1 gas pressure and blob base fee, and which of those chains has the lowest latency and best execution recommendation right now?”
Alerting on L2 stall detection
“Keep an eye on all 12 L2 chains and alert me immediately if Phoenix Zero detects a stall or returns a HIGH_RISK or STALL_DETECTED recommendation for any of them.”
Technical details
Endpoint
GEThttps://rtt.phoenix-ai.work/api/v1/healthWhen to prefer
Choose this endpoint when you need a single aggregated health snapshot across all major L2 chains simultaneously, especially when you need kernel-level RTT precision from eBPF probes rather than RPC polling heuristics. Prefer this over chain-specific RPC calls when making cross-chain routing decisions or pre-flight safety checks before high-value transactions, as it provides a unified execution recommendation rather than raw data you'd have to interpret yourself.
Side effects
- Payment not included or invalid — 402 response requiring x402 USDC payment
- Upstream sequencer probe failure — partial data returned with stale timestamps for affected chains
- Rate limiting if called excessively — 429 response
- Service unavailable — 503 if eBPF probe infrastructure is down
- Malformed response if a chain is newly unsupported or deprecated
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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