Returns real-time instantaneous streamflow (discharge) and gage height for any USGS water-
https://api.hergertsynthora.com/v1/usgs-realtime-streamflowReturns 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.
Reliability & health
Uptime and response time from our own unpaid probes, plus the reliability score built from them.
Uptime
100.0% avgResponse time
p50 118ms · p95 191msData table
| Bucket | Uptime | Probes | Response time |
|---|---|---|---|
| 8/15/2026, 12:00:00 AM | 100% | 1 | 114ms |
| 8/16/2026, 12:00:00 AM | 100% | 1 | 127ms |
| 8/17/2026, 12:00:00 AM | 100% | 1 | 134ms |
| 8/18/2026, 12:00:00 AM | 100% | 1 | 145ms |
| 8/19/2026, 12:00:00 AM | 100% | 20 | 121ms |
| 8/20/2026, 12:00:00 AM | 100% | 21 | 131ms |
- Availability
- 100
- Latency
- 100
- Security
- 100
- Transparency
- 42
- Activity
- not yet measured
How often it was reachable when we probed it (weight 35%).
How quickly it answers when it is up — fast scores high (weight 20%).
Whether it serves over working TLS / https (weight 15%).
Whether the operator disclosed what it does — description, schema, identity (weight 15%).
Observed on-chain payments to this endpoint's wallet — transactions, volume, and distinct paying wallets over the last month (weight 15%; not yet measured when we have not seen its wallet settle).
Confidence 90% — how much probe evidence backs this score. A thin history is flagged, not hidden.
See the scoring methodology for exactly how each number is computed.
Payment
- Currencies
- —
- Networks
- —
- Facilitator
- unknown
- SDK
- unknown
Operator
- Company
- inferred — unknown
- Jurisdiction
- —
- Registrar
- IONOS SE
- Domain registered
- 2026-06-04
- Hosting network
- TT-20260601
- Hosting country
- DE
Operator context is derived from public RDAP/TLS records and unverified. Company and country are only available for endpoints that publish them (an OV/EV TLS certificate or a non-redacted domain record); most endpoints are CDN-fronted and disclose neither.