@ahmad789 said:
last aired episode
hi
How can I get the last aired episode of a series along with its information through api?

See this page
https://developer.themoviedb.org/reference/tv-series-details
After "Query Params" you will find "Response body".
More or less in the middle of the list you will find
last_air_date
last_episode_to_air
Just below that you will find the last_episode_to_air data.

And further down a little
next_episode_to_air
Maybe this will solve your problem.

thank you