JSON

Name Description Documentation
ISS Location Now Current ISS location over Earth (latitude/longitude) ISS-Location-Now
ISS Pass Times Predictions when the space station will fly over a particular location ISS-Pass-Times
People in Space Right Now The number of people in space at this moment. List of names when known. People-In-Space

Source code for the ISS APIs: github.com/open-notify/Open-Notify-API