From free developer access to enterprise-grade firehose streaming
Full unfiltered real-time CT stream. 20M+ certs/day via WebSocket or webhook.
Requires Business or Enterprise tier
*Early Access pricing — Our search index currently covers 10 days of CT log data and is growing daily toward full 90-day depth. Subscribe now to lock in the discounted rate for as long as your subscription is active, even after the full lookback is reached.
Detailed breakdown of what's included in each plan.
| Feature | Free | Developer | Pro | Business | Enterprise |
|---|---|---|---|---|---|
| Search API | |||||
| API calls/day | 100 | 500 | 5,000 | 10,000 | Unlimited |
| Search lookback | 2 days | 7 days | 30 days | 90 days | Custom |
| Search by domain | |||||
| Search by issuer | |||||
| CSV/JSON export | |||||
| Bulk export | Soon | Soon | |||
| Data Feeds | |||||
| Domain data feeds | 1 | 5 | 25 | Unlimited | Unlimited |
| HMAC signatures | |||||
| Retry logic | |||||
| SIEM data routing | |||||
| Firehose | |||||
| Full CT stream | Soon | Soon | |||
| WebSocket delivery | Soon | Soon | |||
| Platform | |||||
| Rate limit (req/sec) | 1 | 5 | 10 | 20 | Custom |
| API key auth | |||||
| CLI tool | |||||
| Commercial use | |||||
| SLA | 99.9% | ||||
Credits never expire
The most affordable CT data platform with native data feeds
Everything you need to know about CT Intelligence API.
CT Intelligence API is a data platform — it lets you search ALL certificates globally and delivers raw certificate JSON to your endpoint for SIEM ingestion, security automation, and programmatic analysis. Certificate Monitoring is an operational tool — it watches YOUR domains for expiry, misconfigurations, and CT activity, sending human-readable alerts through Slack, Email, or PagerDuty. One gives you raw data for your security pipeline, the other gives you actionable notifications for your team.