Side by side
DOTS Address Validation – US 3 vs USPS Addresses API
Both stand on address verification software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free trial APIWeb
The service offers several address matching and parsing operations through an XML web service with multiple request methods. Its output should be considered carefully when making a decision about whether an address exists.
Visit DOTS Address Validation – US 3 Paid API
USPS Addresses API focuses on domestic address accuracy and location lookups for mailing workflows. Its licensing, authentication, usage restrictions, and paid access should be reviewed before integration.
Visit USPS Addresses APIThe facts
| DOTS Address Validation – US 3 | USPS Addresses API | |
|---|---|---|
| Free plan | A free trial | No |
| Open source | Not published | Not published |
| Runs on | API, Web | API |
| Lowest paid plan | Not published | Free or on request |
| Plans published | None | 1 |
| Maker | Not published | Not published |
| Website | serviceobjects.com | developers.usps.com |
| On address verification software | #23 of 30 | #27 of 30 |
DOTS Address Validation – US 3: what it does well
- Checks addresses against USPS data.
- Returns corrected street locations and ZIP+4 information.
- Offers multiple validation and parsing operations.
- Provides a free trial key with 500 transactions.
- Sample code is listed for PHP, Java, and C#.
What to know first
- Coverage is described for US addresses only.
- A free trial is limited to 500 transactions.
- The maker advises caution when judging whether an address exists.
USPS Addresses API: what it does well
- Validates and corrects address information
- Standardizes domestic addresses with ZIP+4
- Looks up cities, states, and ZIP Codes
- REST interface with OAuth authentication
- Enhanced API adds near real-time updates
What to know first
- Paid from $4 with no free plan
- License agreement and tier fees apply
- Terms restrict general use to USPS transactions
- Usage limits may change
Alternatives to DOTS Address Validation – US 3 Alternatives to USPS Addresses API The whole list