GemnetV4

About

Grade Estimator - AI-Powered Collectible Grading Assistant

Grade Estimator uses AI vision to estimate PSA grades for collectible cards and PCGS/NGC grades for coins. Identify valuable ungraded items on eBay, TCGPlayer, and CardMarket.

Key Features:
- Dual Grading Modes: Switch between card grading (PSA 1-10) and coin grading (MS-70 to PO-1)
- AI-Powered Analysis: Uses advanced vision AI to assess condition factors including:
  - Cards: Centering, corners, edges, and surface quality
  - Coins: Strike, surface preservation, luster, wear, and marks
  - Smart Detection: Automatically identifies already-graded items and skips multiple-item listings
  - Price Estimates: See estimated market value at the highest grade (PSA 10 for cards, MS-70 for coins)
  - Grading Cost Calculator: View estimated grading costs from PSA and PCGS/NGC based on item value
  - Batch Scanning: Process listings in batches of 10 with automatic sorting by grade and confidence
  - Grade Caching: Grades are saved so you don't need to re-scan the same items
- Customizable Settings: Adjust badge position, opacity, tooltip delay, and more
- Keyboard Shortcut: Quick scan with Ctrl+Shift+S (Cmd+Shift+S on Mac)

Perfect For:
- Collectors looking for undervalued raw cards and coins
- Dealers identifying grading opportunities
- Anyone buying collectibles online who wants condition insights

How It Works:
- Enter your OpenAI API key in the extension settings
- Visit eBay, TCGPlayer, or CardMarket search results
- Click the scan button or use the keyboard shortcut
- View grade estimates with confidence levels and detailed condition analysis
- Sort listings by highest grades to find the best opportunities

Privacy & Transparency:
- Your API key is stored securely in Chrome's sync storage
- All analysis happens through OpenAI's API
- We use affiliate links to keep the extension free (disclosed in settings)
- Full privacy policy available in extension settings
- Start finding hidden gems in collectible listings today.

Note: Requires an OpenAI API key. The extension uses your API credits for analysis. Usage statistics are tracked so you can monitor costs.