API & Developers

Polymarket CLOB Order Book History: Replay Past Books

Replay Polymarket CLOB order book history with archived bid/ask ladders for resolved markets and strategy research.

Polymarket CLOB order book history lets developers inspect how the central limit order book changed over time. This history is essential for strategy replay and historical market analysis.

What History Adds

  • Past bid and ask ladders
  • Depth changes around price moves
  • Spread behavior before close
  • Historical liquidity for larger simulated orders

Live CLOB vs CLOB History

DatasetUse
Live CLOBCurrent execution and monitoring
CLOB historyBacktesting, replay, and research

How to Use It

  1. Select a resolved market.
  2. Load historical snapshots from open to close.
  3. Replay the book in timestamp order.
  4. Simulate fills from the correct side of the book.

Related Resources