api.nansen.ai/api/v1/prediction-market/event-screener
Nansen · grade A · score 82.7 · confidence 0.65
As of 2026-06-30, api.nansen.ai/api/v1/prediction-market/event-screener on Base held a flawless 100.0% uptime across 35 reliability checks over the past 30 days. Responses came back moderate at 408 ms median and it has held its advertised price steady at $0.0100. Its x402-trust grade is A (score 82.7 from a moderate sample, tracked for 18 days), so it currently looks safe to use.
| Trust grade | A (score 82.7) |
| Recommendation | proceed |
| Confidence | 0.65 — free tier, reduced density (every 6th probe) |
| 30-day uptime | 100.0% |
| Median latency | 408 ms |
| Probes (30d, sampled) | 35 |
| Advertised price | $0.01 USDC |
| Price stability (30d) | stable |
| Network | eip155:8453 |
| First seen | 2026-06-12 |
| Last probed | — |
| Status | listed |
| Snapshot computed | 2026-06-29 14:31 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