Question: I'm looking for a reliable API to validate and enrich address data, including property attributes, do you have any suggestions?

If you need a more mature API to validate and enrich address information, including property attributes, Smarty is a good option. It covers more than 250 countries and territories and offers address verification, standardization, autocomplete and geocoding. With access to more than 350 property attributes, Smarty is a good choice for telecommunications, healthcare and insurance. It's also easy to integrate with tools like QGIS, Google Sheets, Postman and CLI, so it's a good choice for improving data governance and customer experiences.

Another good option is Loqate, which offers good address verification, data validation and geocoding abilities. It's particularly strong for data quality and conversion rates in the UK market. Loqate's APIs are designed to scale and deploy easily, so it's good for companies large and small. The service offers a free trial and 24/5 support, and it promises an average 7% better match rate globally, with much stronger results in developing markets.

If you need a more general-purpose set of APIs, Abstract could be a good choice. It's not just address validation, but it's got APIs for geolocating IP addresses, enriching company data and accessing other public information. The company touts speed, reliability and security, so it's a good choice for developers and companies that want to improve their apps with better data. Abstract offers a free tier and tiered pricing plans.

Last, Placekey can help you identify and link location data with a universal place identifier. The service can help you avoid address matching problems by providing a single, unique identifier for any address. Placekey can be used with many other services and offers flexible pricing plans, so it's a good option if you want to improve the accuracy and efficiency of location-related data.