Creating a form plugin and send to API

[fr3em1nd]

hey Guys! i need help, if anyone can put me to a right direction on creating a sidebar form that could send to an API with JSON format?

parts of the things it could send is:

• username

receives:

• responses from the API

could detect

• if the user is logged in

security:

• simple nocaptcha

show only in:

• pages that i need it to show