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Polymarket Last Trade Price
web-searchfinancial-dataprediction-marketsweathertraveldata
Polymarket Last Trade Price is a paid API for AI agents from AIsa MPP Data APIs at api.aisa.one, paid per call via MPP, $0.012/call, status unknown (last checked 2026-10-14).
Retrieves the most recent trade price and direction (BUY/SELL) for a specific Polymarket prediction market token.
Price / call$0.012
Success—
StatusUnknown
How this service works
Retrieves the last trade price and side for a specific token ID. Returns default values of 0.5 for price and empty string for side if no trades found. <!-- aisa-pricing:start --> Published reference price: $0.012 USD per successful request. Account-specific pricing and final settlement may differ. <!-- aisa-pricing:end -->
Output
Returns a JSON object with two fields: 'price' (a string representing the last trade price, defaulting to '0.5' if no trades exist) and 'side' (a string enum of 'BUY', 'SELL', or empty string if no trades found).
Example use cases
Monitor prediction market entry price
“I'm about to buy into a Polymarket outcome — can you check the last trade price and whether it was a BUY or SELL for token ID 52114319501245915516055106046884209969926127482827954674443846427813813222030?”
Track recent election market activity
“What's the last price someone paid on the Polymarket token 71321663317589786004865993038383591473965197774834854936956222814818618945297, and was that trade a buy or a sell?”
Validate market liquidity before trading
“Before I place an order, tell me the last trade price and side for Polymarket token 52114319501245915516055106046884209969926127482827954674443846427813813222030 so I know if this market has had any recent activity.”
Technical details
Endpoint
GEThttps://api.aisa.one/apis/v1/polymarket/last-trade-price?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to know the most recently executed trade price for a specific Polymarket token, especially to gauge recent market activity or last-seen price level. Prefer this over the midpoint or best bid/ask endpoints when you want actual transaction history rather than current order book state.
Side effects
- Token ID not found or invalid — returns default price of 0.5 and empty side string
- No trades have occurred for the token — returns default values (0.5 price, empty side) rather than an error
- Malformed or missing token_id parameter — likely returns a 400 bad request error
- Network or service unavailability — may return 5xx errors
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| token_idrequired | string | Token ID (asset ID) |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| siderequired | string | Last trade side (BUY or SELL) |
| pricerequired | string | Last trade price |
Tags
web-searchfinancial-dataprediction-marketsweathertraveldatasearch
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