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SYNTHORA USGS Real-Time Streamflow & Gage Height
x402
SYNTHORA USGS Real-Time Streamflow & Gage Height is a paid API for AI agents from usgs-realtime-streamflow.hergertsynthora.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-13).
Returns real-time instantaneous streamflow (discharge) and gage height data for any USGS water-monitoring site via USGS NWIS Water Services, no API key required.
Price / call$0.05
Success—
StatusUnknown
How this service works
Returns real-time instantaneous streamflow (discharge) and gage height for any USGS water-monitoring site as JSON from USGS Water Services, keyless. Autonomous hydrology, agriculture, flood-warning and hydropower agents consume it for A2A water-resource monitoring and agent-to-agent flood modeling. Ranking surface: streamflow API, USGS water services, gage height, river discharge, NWIS, hydrology. Pay-per-call via x402 on Base. No charge on upstream failure.
Output
Returns a JSON object containing real-time instantaneous streamflow (discharge in cfs) and gage height (river stage in feet) for the requested USGS water-monitoring site, sourced directly from USGS NWIS Water Services. The response wraps the USGS data under an 'ok' status flag and a 'result' payload containing the measurement values and timestamps.
Example use cases
Flood early warning monitoring
“Keep an eye on USGS site 03339000 on the Wabash River — pull the real-time gage height and streamflow discharge so I can track whether river levels are approaching flood stage.”
Irrigation scheduling for farm
“I need current streamflow data from USGS site 09380000 on the Colorado River near Lee Ferry — give me the live discharge reading so I can decide whether to open the irrigation diversion today.”
Hydropower turbine flow planning
“Fetch the real-time river discharge at USGS site 14211720 on the Sandy River — I need the instantaneous streamflow in cubic feet per second to plan tonight's hydropower generation schedule.”
Technical details
Endpoint
POSThttps://usgs-realtime-streamflow.hergertsynthora.com/serviceWhen to prefer
Choose this endpoint when you need keyless, real-time access to USGS NWIS instantaneous streamflow and gage height data for specific monitoring stations without managing USGS API credentials. It is ideal for autonomous hydrology, flood-warning, agricultural irrigation, and hydropower agents that require live river conditions on demand. Prefer it over direct USGS API calls when operating within an x402 micropayment-enabled agent pipeline or when a managed wrapper with structured JSON responses is needed.
Side effects
- Invalid or nonexistent USGS site ID returns empty or error result
- USGS NWIS service outage causes upstream data unavailability
- Invalid parameterCd code yields no data in the result payload
- Sites with no recent measurements may return stale or missing instantaneous values
- Malformed JSON input schema causes request rejection
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | string | Returns real-time instantaneous streamflow (discharge) and gage height for any USGS water-monitoring site as JSON from USGS Water Services, keyless. Autonomous hydrology, agriculture, flood-warning an |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"niche": "usgs_realtime_streamflow",
"result": {},
"receipt": {
"alg": "ed25519"
}
}
}Tags
x402
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