The SmartRecruiters Marketplace API allows developers to incorporate their apps into the SmartRecruiters staffing platform. The API provider, SmartRecruiters Inc., offers customers a suite of proprietary personnel recruitment solutions. Developers using the RESTful API can select all or either of the three builder platforms – that is, Offer, Assessment and Job Board APIs – that have varying HR recruitment management functionalities depending on the type of corresponding marketplace services. The SmartRecruiters Marketplace API is already out as a well-documented, full release version that requires token authorization for access. Its responses to requests are formatted in JSON.