apio

Categories · Address Validation APIs

Lob Address Verification vs USPS Addresses API

Lob Address Verification and USPS Addresses API are both Address Validation APIs, compared here on pricing, compliance, capabilities, and developer experience from structured, cited data - not reviews or paid placement. On compliance, Lob Address Verification additionally documents SOC 2, HIPAA, GDPR. For coding-agent use, Lob Address Verification scores higher on agent-friendliness (40 vs 30).

Comparedby a transparent data-readiness score computed from each API's published, sourced fields. No reviews, no paid placement. How we rank.

Data last verified 2026-06-14, with every field cited on each profile.

Head-to-head, from published, cited fields (auto-generated; no paid placement)
FieldLob Address VerificationUSPS Addresses API
Starting price$0.03 1,000 lookups -
Pricing modelHybridUsage
Free tier✓✓
Self-serve signup✓✓
SOC 2Type II·
HIPAA✓·
GDPR✓·
Webhooks✗✗
Sandbox✓✓
Documented actions94

Full data and citations: Lob Address Verification · USPS Addresses API. See more Address Validation APIs.