PolyHistorical vs CryptoCompare: Which Has Better Historical Data?
Comparing PolyHistorical with CryptoCompare for historical crypto data — coverage, API design, and pricing.
Overview
CryptoCompare provides aggregated crypto market data from multiple exchanges. PolyHistorical specializes in Polymarket prediction market order book history — a fundamentally different data type.
Key Differences
| Feature | PolyHistorical | CryptoCompare |
|---|---|---|
| Data Type | Prediction market order books | Aggregated exchange prices |
| Granularity | Sub-second snapshots | Minute/hourly OHLCV |
| Free Tier | ✓ BTC markets, full depth | ✓ Limited API calls |
| Pro Pricing | $11/month | $79+/month |
| Order Books | ✓ Full bid/ask history | ✗ Price aggregates only |
Pricing Comparison
CryptoCompare's professional API starts at $79/month with rate limits. PolyHistorical Pro at $11/month gives you 50,000 requests/day with full order book access — 86% cheaper for prediction market data.
Bottom Line
If you need Polymarket historical data for backtesting prediction markets, PolyHistorical is purpose-built for that. CryptoCompare is better for traditional exchange price aggregation.