Through which service to use Whatsapp API?

Question

API

It’s not entirely clear on the official website, they registered an account, but there is no documentation, no description ..
You need to send messages via the phone number, API.

Answer 1

Perhaps you should look for a ready-made wrapper API for your language.
Found this list .

Answer 2

Only a large multinational company can get direct access to the API. Smaller ones should contact partner aggregators. Official list
Only businesses can connect (individual entrepreneurs are allowed), and there are restrictions, for example, sellers of alcohol and medicines are not allowed.
When choosing, you should focus on two main things: the pricing policy and the availability of the necessary integrations. Not every vendor supports bitrix, jivochat, or whatever else you have planned. To a heap, the jurisdiction of a particular provider can be affected. It may not be convenient for everyone to enter into an agreement with Singapore or transfer payments to Ireland.
By selecting, you can already find out the details of the connection, the protocol used and all that. Usually, each provider is interested in more people connecting to it, and therefore will be happy to answer any questions.
Of course, you need to be prepared for the fact that using this API costs more than sending SMS.

Answer 3

If you need an official one, then look at the Facebook website.
If you need an informal one, we use greenapie. There is documentation and api.