UPU POST*CODE API vs USPS Addresses API
| UPU POST*CODE API | USPS Addresses API | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | Web | — |
| API access | Yes | Yes |
| Address autocomplete | Yes | — |
| International coverage | global | local |
| Free plan | — | No |
| Address correction | — | Yes |
| Address standardization | — | Yes |
Both are listed in Best Address Verification Software. On Samsung Mobile US Press, UPU POST*CODE API scores higher on our published basis.