Kaptia

A CRM that finds businesses that need what you sell, sends the first message and follows up through your WhatsApp. You only step in when the lead replies.

1. 01

   The challenge

   Prospecting by hand eats the whole day: copying contacts from Google Maps one by one, writing message after message, making sure WhatsApp doesn't restrict the number for sending too fast, and remembering to follow up with whoever didn't reply.

2. 02

   What I built

   A CRM with Claude inside: you give it the niche and the city, it finds the businesses, checks for duplicates and saves them with WhatsApp and Instagram. Messages go out from a queue that respects each lead's business hours, with pauses between sends and a daily limit.

3. 03

   Under the hood

   The AI reads every reply, classifies it and suggests an answer; follow-ups go out after 3 and 7 days, written from the conversation, and the pipeline moves on its own until the sale. There's a real-time voice assistant and a dedicated server where every AI task runs isolated.

4. 04

   Tools

   • Next.js
   • TypeScript
   • Fastify
   • PostgreSQL
   • Claude
   • WhatsApp
   • Docker