The Scale API allows users to access on-demand human workforce for different categories of tasks. The innovative solution that has been dubbed the “API for Human Labor” is essentially a scalable interface for outsourcing labor to on-demand workforce. Users can apply the API to perform a variety of tasks within the categorization, transcription, and phone calls functions. The provider of the API is expanding the scope of its functionality through the gradual introduction new endpoints. The Scale API generates requests and returns responses in HTTP and JSON formats, respectively.