About address.cc

address.cc is a small, independent guide to what address verification APIs cost. It is run by John Venti. We are not a vendor, we don't resell any API, and we are not affiliated with any company listed here.

How we collect prices

• Every price comes from the vendor's own public pricing page, docs or official filings, linked as a source on each page.
• When a number came from a third-party site or a search summary instead, we mark it unverified.
• When we convert credits or plan prices into a "per 1,000" figure, we say it's our arithmetic.
• We did not sign up for any service, get quotes, or talk to sales teams. "Contact sales" means no public price exists.
• We compare price and paperwork only. We have not tested accuracy, speed, uptime or support.
• Prices were last checked October 2, 2026. Vendors change prices without notice, so always confirm on their site.

How the calculator works

For a number of US checks per month, the calculator applies each vendor's published plan: the smallest plan that covers you plus any published per-lookup overage, or the vendor's tier rules (for example, USPS bills the whole month at one tier; Google's tiers are graduated after a free allowance). Where the rules are ambiguous, we show a range and explain why.

Disclosure

We earn nothing from this site today. There are no affiliate links, sponsored placements or ads. Links to vendors are plain links to their official pages.

If that changes (for example, if we join a vendor's referral program), we will label those links clearly on the page where they appear and update this section. A referral would never change a published price or the order of a table.

Corrections

Spotted a wrong or outdated price? Email john@address.cc with a link to the vendor's page and we'll fix it.