How to send WhatsApp alerts using python without paid or third-party tools?

Source: Dev.to

Problem Statement

I’m trying to build a health‑monitoring system in Python that needs to send alert messages through WhatsApp. The problem is that my company doesn’t allow any third‑party services or paid APIs, and they want the solution to be completely free. We are using SQL Server as the database (already licensed by the company).

I only know a bit of Python, so I’m not sure what options I have without using third‑party tools like Twilio or Meta’s Cloud API. Is there any way to send WhatsApp messages directly from Python under these restrictions? Or are there alternative approaches I should consider?