API Acre — x402 endpoint preflight
https://apiacre.com/v1/developer/x402-preflightOverview
Probe a public endpoint without paying, grade its x402 v2 challenge, check exact-host x402-list presence and traction, and optionally rank licensed market matches with buyer-concentration caveats.
Protocol
x402 (POST)
Price
—
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
developer
Provider
API Acre
Source
self-registered
Indexed
2026-08-09 12:40:45
Health
Status
healthy
Latency (p50)
144ms
Uptime (30d)
100.0%
Reliability Score
100/100
Last Checked
2026-09-29 01:48:16
Last Healthy
2026-09-29 01:48:16
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-09-29 01:48:16 | healthy | 402 | 147ms | |
| 2026-09-28 14:45:34 | healthy | 402 | 225ms | |
| 2026-09-28 10:07:48 | healthy | 402 | 144ms | |
| 2026-09-28 01:19:05 | healthy | 402 | 138ms | |
| 2026-09-27 15:30:56 | healthy | 402 | 138ms | |
| 2026-09-27 12:08:56 | healthy | 402 | 158ms | |
| 2026-09-26 22:03:26 | healthy | 402 | 123ms | |
| 2026-09-26 15:16:20 | healthy | 402 | 166ms | |
| 2026-09-26 11:12:24 | healthy | 402 | 118ms | |
| 2026-09-26 03:42:53 | healthy | 402 | 133ms |