Custom functions, allow jquery post to 3rd party ?

Custom functions, allow jquery post to 3rd party ?

Hello All,

I am new to Zoho CRM and i would like to send some data.

E.g. When lead get save to update, i would like to transfer lead email address and lead status to my another application.

I created REST API where i can post this. but i would like to know that does custom function allow me to use JQuery AJAX post function ?

can anyone provide me sample?