twelv1x402.vercel.app/api/sma/%7Bsymbol%7D
x402 endpoint · grade F · score 10.0 · confidence 0.49
As of 2026-06-30, twelv1x402.vercel.app/api/sma/%7Bsymbol%7D on Base answered only 37.5% of 32 reliability checks over the past 30 days, leaving it unreliable for anything production-facing. Responses came back sluggish at 660 ms median and it has held its advertised price steady at $0.1000. Its x402-trust grade is F (score 10.0 from a moderate sample, tracked for 4 days), so it is best avoided for now.
| Trust grade | F (score 10.0) |
| Recommendation | avoid |
| Confidence | 0.49 — free tier, reduced density (every 6th probe) |
| 30-day uptime | 37.5% |
| Median latency | 660 ms |
| Probes (30d, sampled) | 32 |
| Advertised price | $0.1 USDC |
| Price stability (30d) | stable |
| Network | eip155:8453 |
| First seen | 2026-06-25 |
| Last probed | 2026-06-30 |
| Status | listed |
| Snapshot computed | 2026-06-30 03:22 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