Web-based manual backtesting platform for testing trading strategies
Sell Magic cards across eBay, ManaPool, and TCGplayer with AI agents
Stage
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Founded
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Based in
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Pricing model
Freemium
Freemium
Pricing
Free plan: $0/month with 1 year of historical data, 20 symbols, 2 charts, limited trades and tools. Pro plan: $7/month with up to 20 years of historical data, 800+ symbols, unlimited charts, unlimited trades, and AI analysis.
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).
Key features
Tick-by-tick replay with bid and ask data
AI agent writes and runs strategies
36+ built-in indicators plus custom indicators
Multi-chart replay across symbols and timeframes
Export to Pine Script, Python, and MQL5
Drawing tools and candlestick patterns
Full trade statistics and performance reports
Upload custom OHLCV or tick CSV data
Over 800 tradable symbols across 7 asset classes
Historical data from tick to monthly timeframes
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
What makes it different
No registration or credit card required to start backtesting
AI agent that writes strategies based on plain language descriptions
Hybrid approach: let AI run the backtest, then take over trading manually
Tick-accurate data with L1 bid/ask pricing
Export strategies as executable code for external platforms
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
Tradebreath
SpellBook Finance