Polymarket Historical Data Availability: What Data Exists & How Far Back
Full breakdown of Polymarket historical data availability — which markets are covered, how far back the data goes, and snapshot granularity on PolyHistorical.
One of the most common questions we get: "How much Polymarket historical data do you actually have?" Here's the complete breakdown of Polymarket historical data availability on PolyHistorical.
Markets Covered
| Coin | Timeframes | Direction | Status |
|---|---|---|---|
| BTC | 5m, 15m, 1hr, 4hr, 24hr | Up & Down | Active |
| ETH | 5m, 15m, 1hr | Up & Down | Coming soon |
| SOL | 5m, 15m, 1hr | Up & Down | Coming soon |
How Far Back Does the Data Go?
PolyHistorical records Polymarket order book data continuously as new snapshots are captured in real time. Pro and AI plans include 31 days of covered BTC, ETH, and SOL market history. Suite includes 60 days.
Free Tier vs Pro Access
| Market Type | Starter (Free) | Pro / AI | Suite |
|---|---|---|---|
| BTC 5m & 15m | Last 50 markets | 31 days | 60 days |
| BTC 1hr & 4hr | Last 24 markets | 31 days | 60 days |
| BTC 24hr | Last 5 markets | 31 days | 60 days |
| ETH 5m, 15m & 1hr | — | 31 days | 60 days |
| SOL 5m, 15m & 1hr | — | 31 days | 60 days |
Snapshot Granularity
Snapshots are captured at sub-second resolution — the highest available anywhere for Polymarket data. This means:
- A 5-minute market window can contain hundreds of snapshots
- You get enough resolution to study micro-structure, detect patterns, and simulate realistic execution
- All snapshots within an accessible market are included on every plan — no snapshot limits
Data Depth per Snapshot
Each snapshot includes price data by default. With include_orderbook=true, you also get:
- Full bid ladder for Up and Down outcomes — every price level and size
- Full ask ladder for Up and Down outcomes — every price level and size
- Coin price at snapshot time
- Up and Down outcome prices (0-1)
Free Access
Start with the free Starter plan — no credit card required. Access recent BTC markets immediately. Upgrade to Pro or AI for 31 days of covered BTC, ETH, and SOL market history, or Suite for 60 days.