FillBook
Auto-import Kalshi fills to see real P&L, win rates, and where your edge is.
Freemium - Free forever plan — no card required; read-only Kalshi imports included. Paid plans/tiers available (see Pricing page).
About FillBook
FillBook is a trade journal built for Kalshi / prediction-market traders. Paste a read-only Kalshi API key or upload CSV to auto-import fills and settlements, get realized P&L with fees folded in and proper $1/$0 settlement, and analyze win rate and edge by category, venue, day of week, and holding duration. Add notes and tags to every position to track thesis, setups, and mistakes. Free demo and a free-forever plan with read-only imports and strong data privacy.
Key Features
- Auto-import from Kalshi via read-only API key and CSV upload
- Accurate realized P&L with fees and correct $1/$0 settlement handling
- Edge analysis by market category, venue, day of week, and holding duration
- Notes and tags on every position for post-trade review
- Live demo available with sample data; free-forever plan and data privacy guarantees
Who is this for?
Individual prediction-market traders and Kalshi users who want accurate P&L tracking and edge analysis
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Pricing
FreemiumFree forever plan — no card required; read-only Kalshi imports included. Paid plans/tiers available (see Pricing page).
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