Best Order Book Snapshot API for Polymarket Strategies
What to look for in an order book snapshot API for Polymarket strategy research, including depth, timestamps, resolution data, and replay support.
The best order book snapshot API for Polymarket strategies should make backtesting execution-aware. That means full bid/ask depth, stable timestamps, resolved market metadata, and enough history to test repeated market formats.
Evaluation Checklist
- Full bid and ask ladders, not just midpoint prices
- Sub-second or high-frequency snapshot history
- Resolved market metadata and outcomes
- Pagination and time filtering
- Reference-price or Binance context for crypto markets
- Simple API responses that work in Python and JavaScript
Why PolyHistorical Fits
PolyHistorical is built for Polymarket BTC, ETH, and SOL Up/Down research with historical order book snapshots, resolution metadata, Strategy Replay, and Binance BTC/USDT depth for Pro users.