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AEML Gauge – Flood Risk & River Anomaly Check
x402
AEML Gauge – Flood Risk & River Anomaly Check is a paid API for AI agents from aeml-x402.zeabur.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).
Returns current flood-risk readings for a river gauge (gage height / streamflow / flood stage / flood category) versus official USGS/NOAA thresholds, plus 5-year seasonal anomaly statistics and a verifiable record hash.
Price / call$0.01
Success—
StatusUnknown
How this service works
[SIGNAL+PROOF] One official signal record for any signal_id and entity: current reading against the OFFICIAL threshold ladder (band, distance-to-action) plus a 5-year same-season percentile so you can tell routine from unusual. 180+ signals across macro, weather, hazard, shipping, filings, crypto and lifecycle lines. Free coverage check first at /gauge/coverage. Descriptive only, never a forecast or advice. No data -> 422 no_charge, not billed.
Output
Returns a JSON object with: current metric readings (gage height, streamflow, flood stage, flood category) from USGS/NOAA; comparison vs official flood thresholds; 5-year same-season statistical strata showing which band the current value falls in; a normalized_index for cross-river comparison; 7-day trend array; source citation list with weights and timestamps; and a cryptographically signed record_hash (Ed25519 + optional Bitcoin OpenTimestamps anchor) for offline verification.
Example use cases
Emergency flood alert triage
“Check the current gage height and official flood stage category for the Missouri River at Kansas City — is it above any warning or flood threshold right now, and how unusual is it compared to typical spring readings over the last 5 years?”
Infrastructure risk assessment for insurer
“Pull the current streamflow and flood category data for the Ohio River at Cincinnati gauge — I need to know if it's in an anomalous range for this time of year and get the verifiable record hash so I can document the reading.”
Environmental monitoring dashboard
“Get me the latest flood-risk gauge reading for the Mississippi River at Baton Rouge, including the normalized flood index and the 7-day trend, so I can see whether conditions are rising or falling compared to the official flood stage threshold.”
Technical details
Endpoint
GEThttps://aeml-x402.zeabur.app/gaugeWhen to prefer
Choose this endpoint when you need official USGS/NOAA flood threshold comparisons (gage height, streamflow, flood stage, flood category) for a specific river gauge combined with seasonal anomaly context, without needing your own API keys or data pipeline. It is especially valuable when you need cryptographically verifiable, citable readings (record_hash + Ed25519 signature) for audit trails, insurance, or compliance use cases. Prefer this over raw USGS/NOAA APIs when you want pre-normalized, pre-stratified, ready-to-interpret data in a single pay-per-call call.
Side effects
- Invalid or unknown signal_id returns 422 with explanation
- No official flood threshold exists for the requested gauge (no ruler available) returns 422 + no_ch flag
- Gauge station data temporarily unavailable from USGS/NOAA upstream
- Insufficient historical data for 5-year strata returns null strata field
- Missing required query parameters (signal_id or entity) returns error
- Payment not processed — x402 payment required before data is returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | object | |
| output | object |
Output
Schema · Response
{
"type": "json"
}Tags
x402
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