agentstamp.org/api/v1/registry/register
x402 endpoint · grade C · score 61.7 · confidence 0.67
As of 2026-06-30, agentstamp.org/api/v1/registry/register on Base responded to 77.2% of 57 reliability checks over the past 30 days — often enough to use, but with outages frequent enough to plan around. Responses came back sluggish at 1015 ms median and it has held its advertised price steady at $0.0100. Its x402-trust grade is C (score 61.7 from a moderate sample, tracked for 12 days), so it warrants caution before relying on it.
| Trust grade | C (score 61.7) |
| Recommendation | caution |
| Confidence | 0.67 — free tier, reduced density (every 6th probe) |
| 30-day uptime | 77.2% |
| Median latency | 1015 ms |
| Probes (30d, sampled) | 57 |
| Advertised price | $0.01 USDC |
| Price stability (30d) | stable |
| Network | eip155:8453 |
| First seen | 2026-06-18 |
| Last probed | 2026-06-29 |
| Status | listed |
| Snapshot computed | 2026-06-29 20:32 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