This Amazon Product Advertising library includes ApaiIO, a PHP library that fetches the API using REST or SOAP. Because of its flexibility, users can perform built in operations such as ItemSearch and ItemLookup. Or, they can include other operations that can be more suitable for a specific project. Documentation, currently under construction, is available. Installation and web usage also accessible on the site.
Science Rockstars aims to transcend simple recommendation engines and A/B testing techniques to create personal profiles of pitches that persuade individually. Their Persuasion API allows applications to compile profiles of each customer and what sways them. Then, based on the profile, communication can be altered in real time in ways that best suit the customer and increase the conversion rate. The documentation notes that it can be implemented either on the server or client side (the latter includes a Javasctipt library to facilitate the process).
Twitter has been carefully rolling out its Promoted Tweets service, which it first announced in April at its Chirp conference. Now these advertisements are being included in some users' timelines on Twitter application HootSuite, according to both companies. Twitter already added Promoted Tweets to its searches.