A Pokédex-style PWA for your Fortnite Sprites collection, with an AI camera scan that reads your in-game collection screen and fills in your dex for you.
🌐 Landing page · 🚀 Quick start · 🧠 How the AI scan works
Fortnite's Chapter 7 Sprites are the closest thing the game has to Pokémon — 16 collectible companions (and counting), some with drop rates below 0.0001%. But there's no way to track your collection outside the game, and no API exposes it: we verified that Epic's official APIs share zero inventory data with third parties, and Sprites don't exist in the unofficial endpoints either. Every other tracker is a plain manual checklist.
Sprite-dex gives you a real Pokédex — and replaces "account sync" with something better:
| 📷 AI Vision Scan | Screenshot your in-game collection screen (or just photograph your TV — console players welcome). Claude's vision model reads which sprites are unlocked vs. silhouetted and fills your dex. You review every detection before it saves. |
| 📖 A proper dex | Silhouettes and ??? for the uncaught. Dex numbers, rarities, drop info, catch dates, notes, favorites. Search and filters. |
| 🏅 Progress & medals | Completion ring, per-wave progress bars, medals at 100%. |
| 📱 Real PWA | Install it on your home screen. Everything except scanning works fully offline — mark catches mid-match. |
| 🔗 No accounts, ever | Your dex lives on your device. Back it up or move it with a share link. Show off your completion with the same link. |
npm install
npm run dev # frontend at :5173Scanning needs an Anthropic API key and the local functions runtime:
export ANTHROPIC_API_KEY=sk-ant-... # platform.claude.com
npm run build
npx wrangler pages dev dist # app + /api/scan on :8788
node scripts/test-scan.mjs shot.jpg # CLI smoke test- Create a Pages project from this repo — build
npm run build, outputdist. - Add
ANTHROPIC_API_KEYunder Settings → Environment variables. functions/api/scan.tsdeploys automatically as the scan endpoint.
A scan costs roughly 1–3¢ of API usage (images are downscaled on-device to ≤1568px first). Before going public, put Cloudflare Turnstile or a rate limit in front of /api/scan — it spends your credits.
your screenshot ──▶ downscaled in your browser (never stored)
──▶ Cloudflare Pages Function
──▶ Claude Opus 4.8 (vision + guaranteed-JSON structured output)
──▶ { collected, uncollected, uncertain }
──▶ review screen — you confirm before anything is written
The model gets the full sprite roster and classifies every visible card: full color → collected, dark silhouette → not yet, ambiguous (TV glare, angles) → flagged uncertain for you to decide.
New season, new sprites? Edit one file — src/data/sprites.json — and drop the icon into public/sprites/. The dex and the scanner both read from it.
Sprite-dex is a fan-made tracker. It is not affiliated with, endorsed, sponsored, or approved by Epic Games. Fortnite is a trademark of Epic Games, Inc. Uploaded images are processed transiently for scanning and never stored.