# Recent Seismic Activity Lookup

> Recent Seismic Activity Lookup is a paid API for AI agents from x402-canary.nicolas-x402-16f380a7.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-15).

Returns recent earthquake data filtered by count limit and minimum magnitude threshold

## Facts

- Endpoint: POST https://x402-canary.nicolas-x402-16f380a7.workers.dev/v1/seismic/recent?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/recent-seismic-activity-lookup-90020612
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kyFw6MwDGWXofuFIf6uj-

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability recent-seismic-activity-lookup-90020612 -d '<json body>'
```

Example prompt: Can you pull the 10 most recent earthquakes with a magnitude of at least 4.5?

## When to prefer this

Choose this endpoint when you need quick, pay-per-call access to recent seismic data with simple filtering by count and magnitude. It is ideal for lightweight agents that occasionally need earthquake data without a long-term subscription. Prefer this over full seismology APIs when you want cost-controlled, on-demand lookups via x402 micropayments.

## Known failure modes

- Invalid limit (non-integer or negative) returns a validation error
- Minimum magnitude out of plausible range may return empty results
- Payment failure via x402 protocol returns 402 Payment Required
- Service unavailable if the upstream seismic data source is down
- Malformed request body returns 400 Bad Request

## How this service works

Free need-to-tool routing plus pay-per-call npm docs and TypeScript API signatures, npm breaking-change diffs, JavaScript-rendered browser snapshots and deterministic coding-agent checks via AgentCash/x402.

## Output

Returns a JSON object with a data field containing the earthquake count and an array of earthquake records, plus a meta field indicating the engine used (earthquakes). Each earthquake entry includes event details such as magnitude and location.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "limit": {
   "type": "integer"
  },
  "min_magnitude": {
   "type": "number"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {
   "count": 2,
   "earthquakes": []
  },
  "meta": {
   "engine": "earthquakes"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/recent-seismic-activity-lookup-90020612/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-canary.nicolas-x402-16f380a7.workers.dev](https://www.zero.xyz/host/x402-canary.nicolas-x402-16f380a7.workers.dev/llms.txt)