Keel vs SpellBook Finance
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Keel compared with SpellBook Finance
| Detail | K
Keel | 
SpellBook Finance |
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| What it does | Strategy OS for AI-assisted systematic trading on Hyperliquid
| Sell Magic cards across eBay, ManaPool, and TCGplayer with AI agents
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| Stage | Not given
| Not given
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| Founded | Not given
| Not given
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| Based in | Not given
| Not given
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| Pricing model | Freemium
| Freemium
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| Pricing | Not given
| Free tier with core features. Premium: $8/mo or $80/yr for sealed-deals board, arbitrage alerts, and higher price-alert headroom. Free shop with 10,000 listed-card allowance (soft limit).
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| Key features | - Typed strategy language with validation
- Portfolio backtesting in seconds
- Multi-asset strategy building with 218 components
- Live trading on Hyperliquid with user-controlled account
- Same code for backtest and live execution
- Real-time position and trade visibility
- AI-assisted strategy composition and validation
- Strategy versioning and component pinning
| - Real transaction-backed pricing from TCGplayer market data
- Cross-marketplace price comparison
- Sealed product expected value rankings
- Portfolio tracking with cost basis and opportunity cost measurement
- AI agent integration for marketplace listing
- Daily price updates from completed sales
- Card inventory import from ManaBox or TCGplayer export
- Desktop card scanner for Mac and Windows
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| What makes it different | - Prevents backtesting errors through typed strategy language
- Deterministic execution: backtest and live trading produce identical results
- Non-custodial: strategies run on user's own account
- AI writes strategies but not executes trades
- Validates time alignment and prevents common timing mistakes
| - Uses real completed transaction prices instead of listing medians
- Focuses on sealed product expected value as a financial asset
- Transparent, publicly reviewed methodology
- Affiliate revenue does not influence rankings or recommendations
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 45 ▲ +1 (up) since last check | 1 ● no change since last check |
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| Trust Flow (Majestic) | 4 | 4 |
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| Citation Flow (Majestic) | 33 | 12 |
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| Referring domains (Majestic) | 80 | 26 |
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4 details filled in for both companies.
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