api-production-2800.up.railway.app/v1/tx-explain
x402 endpoint · grade C · score 55.0 · confidence 0.52
As of 2026-06-30, api-production-2800.up.railway.app/v1/tx-explain on Base responded to 57.1% of 14 reliability checks over the past 30 days — often enough to use, but with outages frequent enough to plan around. Responses came back moderate at 482 ms median and it has held its advertised price steady at $0.0100. Its x402-trust grade is C (score 55.0 from a moderate sample, tracked for 18 days), so it is best avoided for now. It is no longer listed in the x402 directory.
| Trust grade | C (score 55.0) |
| Recommendation | avoid |
| Confidence | 0.52 — free tier, reduced density (every 6th probe) |
| 30-day uptime | 57.1% |
| Median latency | 482 ms |
| Probes (30d, sampled) | 14 |
| Advertised price | $0.01 USDC |
| Price stability (30d) | stable |
| Network | eip155:8453 |
| First seen | 2026-06-12 |
| Last probed | 2026-06-23 |
| Status | delisted |
| Snapshot computed | 2026-06-30 11:52 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