Overview
Independent health, price and history lookups for x402 and MPP endpoints. probe402 probes a fixed seed list on a clock, archives every observation immutably, and answers: alive right now? quoting what? price or schema changed? blocked, or actually dead? The grade is free; history depth is paid. Operated by a named person; not affiliated with any rail operator or graded endpoint. Method, rubric and corrections: https://probe402.com/method
Protocol
x402
Price
$0.0050
Payment Asset
USDC
Payment Network
Base
Category
monitoring
Provider
probe402
Source
self-registered
Indexed
2026-08-24 07:41:06
Health
Status
healthy
Latency (p50)
594ms
Uptime (30d)
100.0%
Reliability Score
82/100
Last Checked
2026-08-24 17:23:32
Last Healthy
2026-08-24 17:23:32
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-08-24 17:23:32 | healthy | 402 | 594ms |