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Nansen Prediction Market Position Detail
blockchainsmart-moneywallettokensdefianalytics
Nansen Prediction Market Position Detail is a paid API for AI agents from Nansen at api.nansen.ai, paid per call via MPP, $0.05/call, status unknown (last checked 2026-10-10).
Returns per-token position data for all holders in a specific Polymarket prediction market, including balances, entry prices, current prices, and PnL.
Price / call$0.05
Success—
StatusUnknown
How this service works
Get detailed per-token position data for all holders in a specific prediction market. Includes token balances, entry prices, current prices, and per-token PnL. **What it helps to answer:** 1. **What are the exact positions of each holder in this market?** 2. **What is the average entry price vs current price for each position?** 3. **How much has each token position gained or lost?**
Output
An array of position records, one per holder-token combination in the market. Each record includes the holder address, token balance, outcome label (e.g. Yes/No), average entry price, current market price, token PnL in USD, total buy cost, sell proceeds, redemption value, and whether the market is resolved. Supports pagination up to 1000 records per page.
Example use cases
Example prompt
“Show me all the holder positions for Polymarket market ID 654412 — I want to see each wallet's token balance, average entry price, current price, and their PnL in USD.”
Technical details
Endpoint
POSThttps://api.nansen.ai/api/v1/prediction-market/position-detail?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need granular per-wallet, per-token position data for a specific Polymarket market — including entry price, current price, and individual PnL. Prefer this over market-level summary endpoints when you need to identify specific winning/losing wallets, analyze smart money positioning, or audit individual holder exposure in a prediction market.
Side effects
- Invalid or non-existent market_id returns empty data array
- Market ID too long (>100 chars) or empty triggers validation error
- Pagination page/per_page out of range returns 422 validation error
- Payment not attached or insufficient USDC returns 402 Payment Required
- Rate limiting or API key issues return 401/403 errors
- Market with no holders returns empty data array
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| market_idrequired | string | Polymarket market ID |
| pagination | object | Pagination parameters for API requests. |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| datarequired | array | List of position detail records |
| pagination | object | Pagination information for API responses. |
Tags
blockchainsmart-moneywallettokensdefianalyticsprofilerdexpnlonchainprediction-marketdata
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