Free Address Lookup API

Free address lookup APIs allow you to quickly and easily find and validate addresses, whether they're provided by users or generated by your software. The RapidAPI Marketplace offers several options, including the Everything Location address validation service which validates addresses in 240 countries. Another option is the Byteplant Postal Address Online Validator, which checks addresses and removes obsolete ones. Address validation is important for many websites and mobile applications, as users often have to enter their address to access certain features. The RapidAPI APIs allow developers to verify a user's submission by using their services. To get started, sign up for free at the RapidAPI marketplace.

The USPS is a great source for address data, but it's also notorious for having weak support and poor documentation. While the USPS address validation API is free, developers should be aware of its poor uptime records and lack of documentation. The USPS API isn't a good choice unless you're willing to risk the reliability of the data. This is where third-party providers come in. Third-party providers allow you to validate addresses and enhance the data for broader use cases.

Allies Computing is a trusted source for address data, working with postal services from around the world to deliver accurate addresses. Using their free address lookup API, you can easily get accurate data. The API is available in a variety of languages, and if you're looking for a free address lookup API, make sure to check the language of the search results. They should be case-insensitive and use one of the supported IETF language tags.