Monitor Zillow listings and alert on price drops
A ChatGPT Agent Mode task checks a filtered Zillow view every six hours, compares snapshots, and sent a notification with the link when a price dropped.
Done withChatGPT Agent
- What they did
- In ChatGPT Agent Mode, the author gave one detailed prompt. It named the target city, price ceiling, minimum bedrooms, must-have features, the filtered Zillow URL, and a six-hour check interval. The agent opened the page, parsed the listing cards, and stored them. On later runs it compared against what it had already seen and was told to notify only on price drops or new listings.
- How it went
- On the second run a price drop happened. The agent compared snapshots, flagged the change, and sent a notification with the listing link. The source gives no further results or numbers.
- Worth knowing
- Agent Mode needs a paid tier, since meaningful runs sit on Plus and above. The source says free accounts only get a taste, and usage limits apply.
Try it yourself with ChatGPT Agent
Open this filtered Zillow search: [Zillow search URL]. Every [6] hours, record the listings and their prices, compare them to the previous check, and notify me with the listing link whenever a price drops or a new listing appears that matches my filters. Keep going until I tell you to stop, and don't contact any agents or submit any forms.
Want help getting this working? Join the Vibe Coding Academy ↗ Run by Alex Finn, who also runs this site.
Source: bluefx.net · Undated
Related use cases
Plan a family trip and pre-fill bookings
A reporter had ChatGPT Agent plan a 4-day San Diego trip: it searched flights, compared hotels, built an itinerary and pre-filled booking forms, stopping before purchase.
Compile genealogy research into a spreadsheet and plan
A commenter had ChatGPT build a spreadsheet for her genealogy research, and agent mode was recommended for compiling and formatting findings into a usable document.
Send emails from a signed-in inbox
A commenter reports ChatGPT agent actually sent emails after the user signed into their email account, and asks whether it can buy plane tickets.
Order groceries online with a local LLM skill
The author built a grocery skill for a local Qwen 3.6 27B model that knows their fridge contents, past orders and real-time stock, and it ordered products for them online.
Custom agent
Turn a handwritten list into a grocery order
A TechRadar writer scans a handwritten shopping list into Alexa and places an Amazon Fresh or Whole Foods order from it to avoid crowded stores.
Monitor competitor marketplace prices
The poster uses Grok Bot to check competitor listings and product prices over time, though CAPTCHAs block it on some sites.
Get 5 like this every morning
The best things people got an AI agent to do, each with the prompt to try it.