PolyHistorical vs PolyBackTest: Polymarket Historical Data Compared
Compare PolyHistorical and PolyBackTest for Polymarket historical order book data, backtesting, API access, market coverage, and pricing.
PolyHistorical vs PolyBackTest is a comparison for developers, quants, and traders choosing a Polymarket historical data source. Both products focus on execution-aware backtesting, but the practical decision comes down to market coverage, API ergonomics, pricing transparency, and whether you need Binance spot/futures context next to Polymarket order books.
Quick Comparison
| Need | PolyHistorical | PolyBackTest |
|---|---|---|
| Historical Polymarket order book depth | 300ms full bid/ask depth snapshots for BTC, ETH, and SOL Up/Down markets | Historical order book depth for selected Polymarket markets |
| Backtesting realistic fills | Supports slippage, spread, depth, and replay workflows from actual order book states | Positioned around backtesting fills, spreads, and slippage |
| Cross-market context | Includes Binance BTC/USDT spot and USD-M futures depth for Pro users | Primarily Polymarket-focused |
| Developer workflow | REST API, markdown docs, llms.txt, examples, and no-credit-card free tier | REST API for market and snapshot queries |
| Best fit | Teams that want Polymarket replay plus exchange-depth context in one workflow | Teams focused only on selected Polymarket backtests |
Why Full Depth Matters
Mid-price history can validate signal logic, but it cannot prove an order would have filled. Full bid/ask ladders let you walk the book, calculate price impact, model partial fills, and reject strategies that only work on marks.
When PolyHistorical Is the Better Fit
- You need BTC, ETH, and SOL Up/Down markets with resolved market metadata.
- You want to compare prediction-market movement with Binance spot and futures depth.
- You need a free tier to validate an idea before upgrading.
- You want API pages, markdown exports, and machine-readable product facts for AI-assisted developer workflows.
When PolyBackTest May Be Enough
- Your research is limited to the exact market types and date ranges it covers.
- You do not need Binance depth, cross-venue spreads, or broader API documentation.
- You only need a narrow Polymarket backtesting dataset.