Historical Polymarket Markets and Full Depth Snapshots API
Use a historical Polymarket markets API with full-depth snapshots for resolved market discovery, replay, and backtesting.
A historical Polymarket markets and full depth snapshots API should solve two problems: finding the right resolved markets and retrieving the order book state needed to analyze them.
Two API Layers
| Layer | Purpose |
|---|---|
| Markets API | Discover slugs, timeframes, status, and resolution metadata |
| Snapshots API | Retrieve timestamped bid/ask depth for replay and backtesting |
Best Practices
- Filter markets before requesting snapshots.
- Use pagination for large replay windows.
- Preserve raw timestamps and market close times.
- Join with Binance reference data for BTC analysis when needed.