1. Algolia's Search API makes it easy to deliver a great search experience in your apps & websites. Algolia Search provides hosted full-text, numerical, faceted and geolocalized search.

  2. Google Custom Search is a platform provided by Google that allows web developers to feature specialized information in web searches, refine and categorize queries and create customized search engines, based on Google Search.

  3. SearchTap is a search technology that can easily integrate with websites and mobile apps to provide an Amazon-like search experience without writing any code. It solves search problems for websites, businesses, mobile apps and enterprise software.

  4. Swiftype Site Search helps to sell more, get the right answer to more people on the platform and surface relevant content for readers and followers.