lifestyle
ListingLens
An AI audit tool that flags red flags in hotel and rental listings.
browser-extensionauditAI-detectionreal-estateClaude
By
Smit Dhandhukia
Semester
Spring 2026
Problem
Hotel and real estate listings are often misleading and overcharged, sometimes via dynamic demand-based pricing. Descriptions include marketing-hyped words, AI-generated images, and fake reviews — making it hard for travelers and renters to know what they're really getting.
Solution
An AI-powered audit tool for sites like Airbnb and Booking.com. A browser extension scans listings, generates a truth report, and highlights red flags — covering language pattern analysis, distance verification, photo / description mismatch detection, and price comparison.
User flow
- Install the browser extension
- Open a listing on Airbnb, Booking.com, or similar
- The extension scrapes the page and sends data for analysis
- Receive a truth report highlighting red flags and verified facts
LLM components
- Language pattern analysis — Claude API decodes euphemisms and detects missing information
- AI image detection — flags AI-generated photos
- Photo / description mismatch detection
Tools
- LLM: Claude API
- Maps: Google Maps API for distance verification
- Pricing data: Zillow API / RentCat API
- Stack: Web scraper → Node.js backend → NLP/AI model → report