Censys
Search engine for Internet connected host and devices
- Authentication
- API Key
- HTTPS
- Yes
- CORS
- No
- Category
- Security
- Documentation / URL
- https://search.censys.io/api
Overview
Censys provides internet asset search — key-based (a missing key returns 401, verified).
Quick Start
Hosts (replace YOUR_ID/YOUR_SECRET):
curl "https://search.censys.io/api/v2/hosts/search?q=test" \
-u "YOUR_ID:YOUR_SECRET"Authentication
- Register at censys.io → API ID + secret.
- Send via Basic auth (missing → 401, verified).
Rate Limits & Notes
- Free tier with limits (check the docs); paid plans scale.
- Host/device search.
FAQ
Is Censys free? Free tier with limits; more is paid.
Why 401? API ID/secret required (verified) — register for credentials.
What’s the auth style? Basic auth (ID:secret).
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