www.qrbase.xyz/api/x402/ping
x402 endpoint · grade D · score 49.4 · confidence 0.75
As of 2026-06-30, www.qrbase.xyz/api/x402/ping on Base held a flawless 100.0% uptime across 60 reliability checks over the past 30 days. Responses came back sluggish at 1322 ms median and it has held its advertised price steady at $0.0010. Its x402-trust grade is D (score 49.4 from a solid sample, tracked for 18 days), so it is best avoided for now.
| Trust grade | D (score 49.4) |
| Recommendation | avoid |
| Confidence | 0.75 — free tier, reduced density (every 6th probe) |
| 30-day uptime | 100.0% |
| Median latency | 1322 ms |
| Probes (30d, sampled) | 60 |
| Advertised price | $0.001 USDC |
| Price stability (30d) | stable |
| Network | eip155:8453 |
| First seen | 2026-06-12 |
| Last probed | — |
| Status | listed |
| Snapshot computed | 2026-06-29 14:41 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.
→
→
POST /v1/x402-trust · POST /v1/x402-history · free MCP: npx -y x402-trust-mcp