Free Address Verification API: What to Expect

Looking for a address verification API to validate addresses in real-time? These tools help correct misspellings, standardize formatting, and ensure deliverability.

Best Free Options Include:

• USPS Web Tools API (U.S. only)

• Google Address Validation API (limited usage)

• Smarty’s free tier

• Open-source projects (with community support)

What You Get:

• Basic address parsing and validation

• ZIP+4 support (U.S.)

• Some support for international addresses

Limitations:

• Free tiers often come with daily/monthly usage limits

• Fewer advanced features like autocomplete or analytics

• Limited support and documentation

For developers, integrating a free address API improves user experience at checkout, reduces failed deliveries, and enhances CRM accuracy. As your needs grow, most free APIs offer affordable paid upgrades.

SITES WE SUPPORT

Address mail api – Wix

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