Overview
Check a domain's current TLS certificate without opening a raw socket. Send a host and it queries Certificate Transparency logs (crt.sh, with a Cert Spotter fallback) to return the active certificate's issuer, subject, SAN list, validity window, days_until_expiry, signature algorithm, and key size; pass history:true to also get past certificate entries. Use it as an SSL certificate checker, TLS certificate expiry API, cert transparency lookup, or domain HTTPS monitoring tool for catching certs b
Protocol
x402 (POST)
Price
$0.03
Payment Asset
USDC
Payment Network
base
Category
uncategorized
Provider
agentutility
Source
self-registered
Indexed
2026-08-28 17:19:06
Health
Status
healthy
Latency (p50)
2334ms
Uptime (30d)
100.0%
Reliability Score
80/100
Last Checked
2026-10-22 13:50:20
Last Healthy
2026-10-22 13:50:20
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-10-22 13:50:20 | healthy | 402 | 3924ms | |
| 2026-10-21 21:15:44 | healthy | 402 | 41ms | |
| 2026-10-21 07:17:43 | healthy | 402 | 7132ms | |
| 2026-10-20 11:30:34 | healthy | 402 | 215ms | |
| 2026-10-20 03:31:41 | healthy | 402 | 2334ms | |
| 2026-10-19 17:23:52 | healthy | 402 | 94ms |