The Streetlayer API offers a robust solution for address verification, addressing challenges like international variance, lack of universal structure, and varied input parameters. By breaking addresses into logical components, the API facilitates precise validation and geocoding, converting addresses into latitude and longitude coordinates for mapping purposes. Streetlayer's features include a validateAddress function to ensure data accuracy and an autocompleteAddress option to enhance user experience by suggesting potential addresses as they type, reducing form abandonment. The API is accessible via RapidAPI, with a free tier for initial testing and scalable pricing for production needs. Unlike some competitors, Streetlayer provides a white-label service, avoiding third-party branding on client applications.