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I wonder if there is an open API to access WhatsApp through an internet protocol? The concrete question is:
- Is there a way to send a message to a list of WhatsApp users from an internet server?
- Is there any open concept for authentication?
- Or - is WhatsApp at the end a closed system without any open API through an internet protocol?
3 Answers
- is the correct answer. WhatsApp is intentionally a closed system without an API for external access.
There were several projects available that reverse engineered the WhatsApp webservice interfaces. However, to my knowledge all of them are now discontinued/defunct due to legal action against them from WhatsApp.
For mobile phone applications there is a limited URL-Scheme-API available on IPhone and Android (Android-intent possible as well).
WhatsApp does not have a API available for public use. As you put it, it's a closed system.
However, they provide several other ways in which your iPhone application can interact with WhatsApp: through custom URL schemes, share extension and through the Document Interaction API.
1) It looks possible. This info on Github describes how to create a java program to send a message using the whatsapp encryption protocol from WhisperSystems.
2) No. See the whatsapp security white paper.
3) See #1.
