Libraries tagged by sign-up

The SDK allows you to receive and send messages through your WhatsApp account. [Sign up now](https://app.chat-api.com/) The Chat API is based on the WhatsApp WEB protocol and excludes the ban both when using libraries from mgp25 and the like. Despite this, your account can be banned by anti-spam system WhatsApp after several clicking the "block" button.

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Create invite codes for users to sign up and be assigned to a group

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Send SMS messages using SMSConneXion API with only one line of code. Sign up at www.smsconnexcion.com and start sending short messaging service messages to mobile phones across the world

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Only allow login and sign ups from oAuth extensions. fork from v17development

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