API & Developers

API Cross-Venue Data Merging Guide for Polymarket and Binance

Merge Polymarket order book snapshots with Binance spot and futures depth for timestamp-aligned BTC strategy research.

API cross-venue data merging is the process of aligning prediction-market order books with exchange-market depth. For BTC research, that usually means Polymarket UP/DOWN books plus Binance BTC/USDT spot and futures depth.

Merge Keys

  • Timestamp or nearest snapshot time
  • Underlying asset, such as BTC
  • Market interval, such as 5m or 15m
  • Venue type, such as Polymarket, Binance Spot, or Binance Futures

Common Pitfalls

  • Mixing exchange timestamps and ingestion timestamps without labeling them.
  • Joining on candles instead of order book snapshots.
  • Ignoring missing snapshots during volatile periods.
  • Assuming spot and futures books always move together.

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