agent.api.0x.org/v1/x402-testnet/swap-allowance-holder-quote/
x402 endpoint · grade C · score 55.0 · confidence 0.62
As of 2026-06-30, agent.api.0x.org/v1/x402-testnet/swap-allowance-holder-quote/ on Base Sepolia responded to 90.0% of 30 reliability checks over the past 30 days — often enough to use, but with outages frequent enough to plan around. Responses came back sluggish at 946 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 | 0.62 — free tier, reduced density (every 6th probe) |
| 30-day uptime | 90.0% |
| Median latency | 946 ms |
| Probes (30d, sampled) | 30 |
| Advertised price | $0.01 USDC |
| Price stability (30d) | stable |
| Network | eip155:84532 |
| 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