Vendors
Prices checked from each vendor's public pricing page. Prices change; confirm on the vendor's site before you buy.
Address verification APIs
- Smarty$17/month for 1,000 US lookups, or $195/year for 12,000
- Loqate (GBG)$100 credit pack (credits last 12 months)
- Melissa"Small Business" credits from $40 for 10,000 credits; $350 for 100,000; $3,200 tier
- Google Address Validation APIPay as you go
- USPS Addresses API v3$10 flat per month for 1–2,000 requests
- Experian Address ValidationContact sales
- PreciselyContact sales
- PostGridStandard (US/CA): $18/month for 2,000 lookups, then $0.02 each
- Lob$25/month includes 1,000 US verifications, then $0.025 each; $450/month includes 50,000, then $0.009 each
- Ideal Postcodes£9 for 200 credits
- Postcoder£25 for 500 credits (pay as you go); monthly from £25 for 1,000 credits
Shipping APIs with verification
- EasyPostStandalone: $0.02 domestic, $0.06 international
- ShippoAPI Starter: 2¢ per US validation, 8¢ per non-US