Polymarket data providers compared
Polymarket does not publish past order books, so several companies record and sell them. They differ most on how often they capture the book, how far back they go, and how you get the data. Each row below comes from the provider's own website, checked on 2026-09-29.
Last updated:
| Provider | Order-book granularity | History | Paid from | Free tier |
|---|---|---|---|---|
| Resolved Markets | ~20 Hz crypto, event-driven | From March 2026, full archive on every plan | $17/mo | Full-depth crypto books, 5,000 credits/mo |
| PolymarketData | 1 minute (last book in each interval) | From August 2025 | $60/mo | Yes, no historical order books |
| Telonex | Every book change | On-chain since Nov 2022; book start not stated | $99/mo | 5 file downloads |
| PolyBackTest | 8 snapshots/s (docs) | Rolling 31–150 days by plan | $19.90/mo | BTC only, recent markets |
| DepthFeed | Every change (Desk plan) | Full archive on Desk | $29/mo | 7 days, 60 s minimum interval |
| Marketlens | Tick-level, millisecond replay | From March 1, 2026 | $39/mo | Markets opened in the last 7 days |
| PMData | Tick-level, daily files | From 2026 (site gives two dates) | $49/mo | 600 downloads, then 50 a month |
| PolyOrderbooks | 1 second | Back to January 3, 2023 | $19/mo (30 days) | 3 days of history |
Detailed comparisons
- Resolved Markets vs PolymarketData: Polymarket prices, metrics and 1-minute order-book history for every category, back to August 2025.
- Resolved Markets vs Telonex: Tick-level Polymarket order books, trades and on-chain fills, delivered as daily Parquet files.
- Resolved Markets vs PolyBackTest: Sub-second order books for BTC, ETH and SOL up/down markets, with a hosted strategy backtester.
Frequently asked questions
What is the best Polymarket historical data provider?
It depends on what you need. For the longest history, PolyOrderbooks (from 2023) and PolymarketData (from August 2025). For every book change as Parquet files, Telonex or PMData. For live and historical full-depth books through one API with WebSocket and MCP, and a free tier with order books, Resolved Markets.
Which Polymarket data providers have a free tier with order books?
Resolved Markets (all crypto markets, full history, 5,000 credits a month), PolyBackTest (BTC, recent markets), PolyOrderbooks (3 days), DepthFeed (7 days, 60-second interval) and Marketlens (markets opened in the last 7 days). PolymarketData’s free plan has no historical order books.