Nice! Is there a way someone can hit the same endpoints while not on a plane? From an environment perspective it’s a great use of time if the API is only available while in the air.
You cant access these in flight APIs in exactly the same way as you can while on the plane, but the same information can be found for almost all flight in the air that use ADS-B, and there are many services that offer this as an API[1]
And if you want to have some fun, you can buy a SDR (software defined radio) for $20 or $30, and receive this signal from the airplanes flying over your house.
This project actually inspired me to get one and I've had fun decoding satellite imagery from NOAA satellites too[0]