[zarzavat]

Beware that if this does not use a real web browser then it's likely to get your whatsapp account suspended. Don't use it with any account you care about, you will lose all your data.

Hell, I got my whatsapp account suspended (appealed and reversed) just for using the official web client too soon after creating a new account.

[worldsavior]

Right now I see many bots on WhatsApp.

[joshwarwick15]

You can use the official API to create and run bots - though the API itself is pretty bad

[iddan]

They use a real browser