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Categories · Address Validation APIs

Lob Address Verification vs Smarty (US & International Address Verification)

Lob Address Verification and Smarty (US & International Address Verification) are both Address Validation APIs, compared here on pricing, compliance, capabilities, and developer experience from structured, cited data - not reviews or paid placement. Lob Address Verification offers a free tier while Smarty (US & International Address Verification) does not, so Lob Address Verification is easier to trial before committing. For coding-agent use, Smarty (US & International Address Verification) scores higher on agent-friendliness (50 vs 40).

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 VerificationSmarty (US & International Address Verification)
Starting price$0.03 1,000 lookups$50 month
Pricing modelHybridSubscription
Free tier✓✗
Self-serve signup✓✓
SOC 2Type IIType II
HIPAA✓✓
GDPR✓✓
Webhooks✗✗
Sandbox✓✗
Documented actions918

Full data and citations: Lob Address Verification · Smarty (US & International Address Verification). See more Address Validation APIs.