About Addresspenny
Address validation shouldn't come with a monthly minimum, a sales call, or a 10,000-lookup commitment. Addresspenny is the pay-as-you-go alternative.
Why we built it
We built Addresspenny because every existing address validation service was priced for enterprise buyers: monthly minimums, per-seat fees, annual contracts, or credits that expired before you could use them. For indie developers and small teams validating a few thousand addresses a month, none of it fit.
How it works
Addresspenny is a thin, friendly wrapper around Google's Address Validation API — a USPS CASS-certified service that combines authoritative postal datasets with Google's mapping data to verify, standardize, and enrich mailing addresses in 40+ countries. US addresses include full CASS output: DPV delivery confirmation, carrier routes, county FIPS codes, and more. You get the same underlying data quality, with a simpler pricing model: one credit per validated address, the same flat rate for US and international lookups, and no monthly minimums.
Who it's for
- Developers who want a REST API they can drop in without a procurement call.
- Small businesses who need to clean up a customer list in a spreadsheet, one time, without signing up for a subscription.
- Automation builders using Zapier to validate addresses from form submissions, CRM updates, and e-commerce orders.
- AI agents running in Claude Desktop, Cursor, and other MCP-compatible clients that need a real address validation tool.
Get in touch
Questions, feature requests, or something not working? Chat with us or email support@addresspenny.com.