Does i need to have an azure account to use Dynamics CRM Web API ?

Hello,

I have to expose some data from my CRM using the CRM Web API. So i read somewhere that i  need to have a Azure account to use this web API. Is that true ? I'm not sure if i correctly understood that. 

If yes, do you have some docs or something like that to help me to create this account and get client ID i can use in my project. 

Thanks to read me, Peace.