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SALT19 USGS Earthquake Feed
x402
SALT19 USGS Earthquake Feed is a paid API for AI agents from api.salt19.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-27).
Retrieves recent USGS earthquake events filtered by time window, count limit, and minimum magnitude
Price / call$0.01
Success—
StatusUnknown
How this service works
SALT19 is an independent applied AI systems lab behind EvoMind governed cognition, the MCP-native Agent Utility Grid, the ARCS research community, AeroClear UAS flight intelligence, and practical software for real-world work.
Output
A JSON object containing a count of matching events and an array of earthquake records, each with a UTC timestamp, a human-readable place description, and a numeric magnitude value.
Example use cases
Daily seismic briefing for safety team
“Give me a daily summary of all earthquakes from the past 24 hours with a magnitude of 4.0 or above, up to 50 events, so I can review overnight seismic activity.”
Real-time alert check after news report
“I just heard there was a big earthquake — can you pull the last 2 hours of USGS data with no magnitude filter and show me up to 10 events to see what happened?”
Weekly high-magnitude event review
“Fetch the last 168 hours of USGS earthquake activity, limit to 20 results, and only include quakes magnitude 5.0 or greater so I can review the week's major seismic events.”
Technical details
Endpoint
POSThttps://api.salt19.com/v1/usgs-earthquakes?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a pay-per-call, agent-friendly USGS earthquake feed with built-in filtering by recency, count, and magnitude — ideal for AI agents that want structured JSON output without setting up direct USGS API access or managing rate limits. Prefer this over direct USGS GeoJSON feeds when operating inside an x402 micropayment workflow.
Side effects
- Invalid hours value outside 1–168 range returns validation error
- Limit exceeding 50 or below 1 returns validation error
- min_magnitude outside 0–10 returns validation error
- USGS upstream data unavailability may cause timeout or empty response
- Malformed POST body returns 400 bad request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| hours | integer | |
| limit | integer | |
| min_magnitude | number |
Output
Schema · Response
{
"type": "json",
"example": {
"count": 1,
"events": [
{
"time": "2026-08-28T12:00:00.000Z",
"place": "example",
"magnitude": 3.1
}
]
}
}Tags
x402
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