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I built a WhatsApp bot to help you remember birthdays

I built a WhatsApp bot to help you remember birthdays

by jonnyburch·Apr 28, 2026·2 points·0 comments

AI Analysis

MidCozySolve My Problem

WhatsApp-native birthday tracker beats another standalone app you will never open.

Strengths
  • Natural language input via voice notes removes friction of manual date entry.
  • MCP support allows AI coding agents to query birthday data programmatically.
  • Zero-install setup leverages existing WhatsApp habits for immediate adoption.
Weaknesses
  • Reliant on third-party WhatsApp APIs which can change terms or shut down access.
  • Basic reminder functionality is already solved by native contacts apps and calendars.
Category
Target Audience

Individuals wanting frictionless personal reminder systems

Similar To

Google Contacts · Birthday Bot · Cron

Post Description

I deleted facebook well over a decade ago. As a now 40 year old, I was of the generation that stored all of their data on Facebook, but the only feature I missed was birthday reminders.

This became even more embarassing as friends and family started having kids. Hell if I remember your third kid's name, let alone birthday.

So a couple of years ago I built a simple app to keep birthdays in check. It was... fine. Rails web app, did the basics.

But I still had to go to the app to add people, worry about being logged out, just enough friction that I'd forget or not bother. So a couple of months ago I turned it into a whatsapp-only app.

It now runs entirely through whatsapp (with a few webviews chucked in when needed) and it's super smooth. I can add birthdays with natural language, yeet in a few at a time, just record a voice note and get on with my day. And it sends me email reminders that save my bacon for now nearly 100 friends and family and their ruddy keeds.

Anyway, thought it might be useful for others. have at it.

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