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Nansen Polymarket OHLCV Candles
blockchainsmart-moneywallettokensdefianalytics
Nansen Polymarket OHLCV Candles is a paid API for AI agents from Nansen at api.nansen.ai, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-12).
Returns 1-hour OHLCV (Open, High, Low, Close, Volume) price candles for a Polymarket prediction market outcome, derived from on-chain OrderFilled events on Polygon.
Price / call$0.01
Success—
StatusUnknown
How this service works
Get 1-hour OHLCV (Open, High, Low, Close, Volume) candles for a Polymarket prediction market. Candles are computed from on-chain OrderFilled events on Polygon. **What it helps to answer:** 1. **What is the price history of a prediction market outcome?** 2. **How has trading volume changed over time?** 3. **What were the high and low prices in each time period?**
Output
A paginated list of hourly OHLCV candle records, each containing open, high, low, close prices, USD volume, trade count, unique traders, outcome side label (Yes/No), token ID, outcome index, and the ISO-format period start timestamp for that candle.
Example use cases
Example prompt
“Pull the hourly OHLCV candles for Polymarket market ID 654412 from January 1, 2025 to January 31, 2025, sorted by period start descending, so I can chart the price and volume history.”
Technical details
Endpoint
POSThttps://api.nansen.ai/api/v1/prediction-market/ohlcv?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need granular hourly price history, volume trends, or candlestick chart data for a specific Polymarket prediction market outcome. Prefer this over snapshot or screener endpoints when time-series price analysis is required rather than a current-state summary.
Side effects
- Missing required market_id returns a 422 validation error
- Invalid date format (non-ISO 8601) causes a 422 validation error
- market_id not found or with no trading history returns an empty data array
- Pagination page out of range returns empty results
- is_last_page flag can be used to detect end of data; missing pagination handling may cause infinite loops
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| date | — | Date range filter (ISO 8601 date-time) |
| sort | — | Deprecated: use 'order_by' instead. |
| order_by | — | Sort order |
| market_idrequired | string | Polymarket market ID |
| pagination | object | Pagination parameters for API requests. |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| datarequired | array | List of OHLCV candle records |
| pagination | object | Pagination information for API responses. |
Tags
blockchainsmart-moneywallettokensdefianalyticsprofilerdexpnlonchainprediction-marketdata
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