Is it possible to create a formula field using the API?

[dodo21]

Is it possible to create a formula field using the API? if so how Can we do it can someone provide me the right json structure and syntax

[kuovonne · Accepted solution]

No. It is not possible to create a formula field using the API or scripting. Formula fields can only be created via the user interface. 

[sebastienfrance]

And is there a way to read all the formula already in used via API ?