Lob.com API
Data Validation · Operational · 30d uptime 100%
Automate and personalize direct mail at scale while our nationwide print network speeds delivery, controls postage costs, and keeps every send compliant.
Trust signals
Pricing
PAID
Auth
API_KEY
CORS
No
Rate limit
Not documented
Health
356ms
Trust score
87 (B)
Last checked Oct 19, 2026 · uptime 24h 100% / 7d 100% / 30d 100%
Strong candidate; weakest signal is CORS.
Integration checklist
- Auth is API_KEY
- No CORS — route calls through your backend.
- Rate limit: Not documented