Creating a program (website)?

Question

Software and Internet Services

Tell me, I want to create a site for myself and for my clients where they can parse VK users using filters, then add them from their accounts to friends and then send them an invitation to join groups. What should I start studying for such a project?

Answer 1

с бюджета

Answer 2

Что стоит начать изучать для такого проекта?

Лицензионное соглашение ВКонтактика и законодательство :)