agent.api.0x.org/v1/x402/swap-allowance-holder-quote/
x402 endpoint · grade C · score 55.0 · confidence 0.57
As of 2026-06-30, agent.api.0x.org/v1/x402/swap-allowance-holder-quote/ on Base held 95.2% uptime across 21 reliability checks over the past 30 days, with only occasional misses. Responses came back sluggish at 1007 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 | 0.57 — free tier, reduced density (every 6th probe) |
| 30-day uptime | 95.2% |
| Median latency | 1007 ms |
| Probes (30d, sampled) | 21 |
| Advertised price | $0.01 USDC |
| Price stability (30d) | stable |
| Network | eip155:8453 |
| First seen | 2026-06-12 |
| Last probed | 2026-06-27 |
| Status | delisted |
| Snapshot computed | 2026-06-30 13:21 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