Polymarket Get Market Price
Get current price data for a Polymarket token including midpoint, best bid/ask, spread, and last trade price. Supports single token (tokenId) or batch mode (tokenIds array) for multiple tokens in one call. Fetches multiple price points in parallel for comprehensive market view. Ideal for: price monitoring, trading signals, arbitrage detection, portfolio valuation.
Catalog action Utility
Get current price data for a Polymarket token including midpoint, best bid/ask, spread, and last trade price. Supports single token (tokenId) or batch mode (tokenIds array) for multiple tokens in one call. Fetches multiple price points in parallel for comprehensive market view. Ideal for: price monitoring, trading signals, arbitrage detection, portfolio valuation.
At a Glance
| Field | Value |
|---|---|
| Action ID | polymarket-get-market-price |
| Category | Utility |
| Connector | Not required |
| Requires gas | No |
| Funds movement | None declared |
| Tags | polymarket, price, market-data, read |
Payload Schema
| Field | Type | Required | Description |
|---|---|---|---|
tokenId | string | No | The token ID to get price data for (single token mode) |
tokenIds | array | No | Array of token IDs for batch price fetch |
Result Schema
| Field | Type | Required | Description |
|---|---|---|---|
tokenId | string | No | The token ID queried |
midpoint | number | null | No | Midpoint price between best bid and ask |
bestBid | number | null | No | Best (highest) bid price |
bestAsk | number | null | No | Best (lowest) ask price |
spread | number | null | No | Spread between best bid and ask |
lastTradePrice | number | null | No | Price of the last trade |
prices | array | No | Array of price data for each token (batch mode) |
Examples
json{ "type": "polymarket-get-market-price", "payload": { "tokenId": "1", "tokenIds": "1" }, "children": []}
bashcurl -X POST "https://api.b3os.org/v1/actions/polymarket-get-market-price/test" \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "inputs": { "tokenId": "1", "tokenIds": "1" }}'
Payload fields can use workflow expressions such as {{$trigger.body.amount}}, {{$nodes.fetch.result.price}}, and {{$props.asset}} when the value should come from a trigger, prior node, or reusable workflow prop.