How Does BidWiser Work?
BidWiser uses artificial intelligence to analyze eBay listings and provide you with safety insights before you bid.
The Analysis Process
Step 1: Data Collection
When you click the BidWiser shield icon, we fetch data from eBay using 5 different API calls:
- GetItem - Full item details including description, condition, photos, and seller info
- GetUser - Detailed seller profile, registration date, and verification status
- GetFeedback - Recent negative and neutral feedback with seller responses
- GetItemShipping - Shipping costs and options for your location
- GetStore - Seller's eBay store information (if applicable)
Step 2: AI Analysis
All this data is sent to our AI engine (ChatGPT 4o-mini with custom prompts) which:
- Evaluates seller trustworthiness based on history and feedback patterns
- Assesses listing quality including description, photos, and pricing
- Identifies potential red flags and concerns
- Recognizes positive trust indicators
Step 3: Score Generation
The AI generates three reliability scores (0-100):
- Seller Score - How trustworthy is this seller?
- Listing Score - How well-presented and legitimate is this listing?
- Overall Score - Combined assessment of the transaction
Step 4: Results Display
A popup window shows:
- The three scores with color coding (green/yellow/red)
- Positive indicators (green checkmarks)
- Cautions to consider (yellow warnings)
- Red flags to be aware of (red alerts)
- A summary paragraph explaining the key findings
Caching
Results are cached for 10 days. This means:
- Viewing the same item again is instant
- It doesn't count toward your daily quota
- You can share the analysis link with others
To force a fresh analysis, add ?nocache=1 to the URL.
The AI Model
We use ChatGPT 4o-mini with carefully crafted prompts designed specifically for eBay listing analysis. Our prompts are tuned to:
- Be generous with good sellers (not overly suspicious)
- Flag real concerns (not trivial matters)
- Provide actionable insights
- Quote specific feedback when relevant
