Latest US river and stream readings from the USGS water data API (15-minute data
Latest US river and stream readings from the USGS water data API (15-minute data): discharge (cubic feet per second), gage height (feet) or water temperature for a USGS monitoring site. Use it for flood watching, paddling and fishing conditions, and water-dependent operations. Site number e.g. 01646500 (Potomac River near Washington DC). Data are provisional.
Answeringour last check, 2026-10-18
1 of 1checks answered this week
280 msmedian answer time
$0.001listed price per call
$0.001price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://opendata402.com/v1/rivers/us
| Category | Everything else |
|---|---|
| Provider host | opendata402.com |
| Networks | eip155:137, eip155:42161, eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-18 | valid payment request | 402 | $0.001 | 280 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"parameter": "discharge",
"site": "01646500"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"parameter": {
"description": "discharge (default), gage_height or water_temp.",
"enum": [
"discharge",
"gage_height",
"water_temp"
],
"type": "string"
},
"site": {
"description": "USGS site number.",
"pattern": "^\\d{8,15}$",
"type": "string"
}
},
"required": [
"site"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}