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Phoenix Zero Safe Check
x402
Phoenix Zero Safe Check 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).
Pre-flight boolean safety check for L2 transactions, returning safe/unsafe status with a reason code and sequencer health metrics.
Price / call$0.01
Success—
StatusUnknown
How this service works
Boolean pre-flight check for L2 transaction safety across all 12 chains (?chain= param, default: base). Returns safe=true/false with reason code. Optimized for high-frequency agent calls before submitting transactions.
Output
Returns a JSON object with: a boolean 'safe' field (true if safe to execute the L2 transaction now), a 'reason' enum ('ok', 'elevated_revert', 'high_revert', 'sequencer_stall', or 'data_stale') explaining the safety status, a 'base_p99_ms' number representing the Base sequencer P99 round-trip time in milliseconds, and a 'revert_ratio' number (0.0–1.0) indicating the current transaction revert rate.
Example use cases
Pre-flight check before DeFi swap
“Before executing my swap on Base, run a safety check to make sure the sequencer isn't stalling and the revert ratio is low — I don't want to waste gas if conditions are bad.”
Automated agent transaction gating
“My agent is about to submit a GET transaction to the L2 — run a Phoenix Zero safe check first and only proceed if safe comes back true and the reason code is 'ok'.”
Monitoring L2 health during high traffic
“The network seems congested right now — can you do a quick Phoenix Zero safe check on the L2 and tell me the current revert ratio and P99 latency before I try to send anything?”
Technical details
Endpoint
GEThttps://rtt.phoenix-ai.work/api/v1/safeWhen to prefer
Choose this endpoint when your agent needs a fast, cheap ($0.01 USDC), high-frequency pre-flight gate before submitting any L2 blockchain transaction. It is purpose-built for agent automation loops where you want to avoid wasted gas from revert-prone or stalled sequencer conditions. Prefer this over full L2 health oracles when you only need a binary go/no-go decision with a machine-readable reason code rather than full multi-chain sequencer metrics.
Side effects
- Data stale: reason code 'data_stale' returned when backend health data is too old to be reliable
- Sequencer stall detected: safe=false with reason 'sequencer_stall' indicating the L2 sequencer is not processing transactions
- High revert conditions: safe=false with reason 'high_revert' when revert ratio is critically elevated
- Elevated revert: safe=false with reason 'elevated_revert' for moderately high revert rates
- Payment failure: 402 response if USDC payment is not properly attached
- Network timeout: endpoint may be temporarily unreachable under extreme L2 stress conditions
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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