Using an address lookup API is a great way to verify addresses without having to write complicated code. Address lookup tools are essential for e-commerce checkouts, call center agents, and other businesses. They are also used by mail-oriented businesses and delivery services to ensure that addresses are accurate and valid. Using an address lookup API can reduce your risk of shopping cart abandonment and ensure that addresses are entered into your database properly.
Google has an address lookup API that uses geo-coordinates to find addresses. However, there are a few drawbacks to using this API. For one, it doesn’t validate addresses against an official address database. Google Street Cars isn’t a reliable data source and location biasing is a problem. Moreover, Google doesn’t check addresses against an official address database of a particular country.
Google also doesn’t offer suggestions to addresses down to apartment numbers. While Google Maps API is free, it comes with restrictive terms of service. Also, Google Street Cars updates are dependent on street car map updates.
Postcoder is an address lookup service that offers ultra-fast and comprehensive address data. It uses the PAF(r) database from Royal Mail. It also offers free technical support. The service works with the USPS. It also offers access to the largest address database in the world.
If you need more robust data, you may want to consider a third-party API. Often, these services will provide the same data as the USPS. However, you may pay more for your data.
Standard Address API 