api.kadec0.xyz/v1/usgs-quakes
USGS Earthquake Feed · grade A · score 81.9 · confidence 0.62
As of 2026-06-30, api.kadec0.xyz/v1/usgs-quakes on Base held a flawless 100.0% uptime across 49 reliability checks over the past 30 days. Responses came back sluggish at 535 ms median and it has held its advertised price steady at $0.0050. Its x402-trust grade is A (score 81.9 from a moderate sample, tracked for 8 days), so it currently looks safe to use.
| Trust grade | A (score 81.9) |
| Recommendation | proceed |
| Confidence | 0.62 — free tier, reduced density (every 6th probe) |
| 30-day uptime | 100.0% |
| Median latency | 535 ms |
| Probes (30d, sampled) | 49 |
| Advertised price | $0.005 USDC |
| Price stability (30d) | stable |
| Network | eip155:8453 |
| First seen | 2026-06-22 |
| Last probed | 2026-06-30 |
| Status | listed |
| Snapshot computed | 2026-06-30 00:32 UTC |
Need more than the free snapshot? The paid API adds a live probe at decision time (with timestamp), full 30-minute probe density & confidence, 90-day history, on-chain settlement correlation, and watch/alerting.
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POST /v1/x402-trust · POST /v1/x402-history · free MCP: npx -y x402-trust-mcp