How I Extract 847 Google Maps Leads in 4 Seconds (Technical Breakdown)

Most sales teams in Dubai and Riyadh still copy business contacts
from Google Maps manually. I built a tool to fix that.

Here's the technical approach behind LeadTrapper:

The Problem

Google Maps doesn't have a public API for bulk business data.
Existing tools are either too expensive ($200+/month) or too slow.

The Approach

1. Query the Maps search endpoint with a business category + city
2. Parse the response for name, phone, address, rating, website
3. Deduplicate against previously seen leads using SQLite
4. Batch the results — 847+ leads returned in under 4 seconds

WhatsApp Delivery

Once you have the leads, the tool connects via WhatsApp Web
(no API key needed) and sends personalized messages to each contact.

The dedup layer uses a hash of the phone number so you never
message the same business twice.

Current Status

Still finalizing the product. Landing page is live at
LeadTrapper — launching soon.

Curious if anyone here has built similar scraping pipelines and
how you handled rate limiting at scale.