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

PostGrid 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. PostGrid Address Verification starts lower at $18 per month vs $50 for Smarty (US & International Address Verification). 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)
Field	PostGrid Address Verification	Smarty (US & International Address Verification)
Starting price	$18 month	$50 month
Pricing model	Hybrid	Subscription
Free tier	✗	✗
Self-serve signup	✓	✓
SOC 2	Type II	Type II
HIPAA	✓	✓
GDPR	✓	✓
Webhooks	✗	✗
Sandbox	✓	✗
Documented actions	14	18

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