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AI Agents

Price Drop Watcher Agent

Tell the agent what you want and your budget and it watches prices for you.

Beginner10h1–2 people16/20 fit
TL;DR

Build Price Drop Watcher Agent for online shoppers in ~10h with 1–2 people. Stack: browser-use + Python + Cron + Email.

Why it wins: Simple loop that shows real agent tool use.

Build flow

01 · Problem
Prices change daily and people overpay or miss short sales.
02 · Solution
A scheduled browser agent visits product pages, extracts the price and notifies the user when it drops below their target.
03 · Build
  1. 1Set up browser-use with an LLM
  2. 2Extract the price from each page
  3. 3Store history in SQLite
  4. 4Send alerts on drops
04 · Demo
Add a product with a target just above today's price and trigger the check.

MVP checklist

  • Natural-language watch list
  • Scheduled checks
  • Price history chart
  • Drop alerts

Tech stack

TechRole
browser-useLLM browser automation
PythonBackend / scripting
CronScheduled jobs
EmailTooling

Reference repos

Open-source projects you can build on. Links checked 2026-10-31.

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