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Polymarket Markets Feed via AgentUtility
x402
Polymarket Markets Feed via AgentUtility is a paid API for AI agents from x402.agentutility.ai, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Fetches live Polymarket prediction market data including YES/NO prices, liquidity, volume, and end dates with optional filtering by category, tag, query, or minimum liquidity
Price / call$0.005
Success—
StatusUnknown
How this service works
Polymarket markets / prediction market data / Polymarket API / list active prediction markets / crypto-settled betting odds / event odds / Polymarket browse. Pulls live Polymarket markets from gamma-api with filter by category, tag, free-text query, minimum liquidity. Returns market question, current YES/NO outcome prices (implied probabilities), 24-hr volume, liquidity, end date. DATA-ONLY — no trading. Useful for agent forecasting research and arbitrage detection.
Output
Returns a list of active Polymarket prediction markets, each containing the market question, current YES and NO outcome prices (as implied probabilities between 0 and 1), 24-hour trading volume, total liquidity, and market end/resolution date. Results are filtered according to any supplied category, tag, free-text query, or minimum liquidity parameters.
Example use cases
Election forecasting research
“Show me all active Polymarket markets related to the 2024 US presidential election, filtered to those with at least $100k in liquidity, and give me the current YES and NO prices so I can see implied win probabilities.”
Crypto event arbitrage detection
“Find Polymarket prediction markets in the crypto category with over $20k liquidity and show me the 24-hour volume and current odds — I want to spot any that look mispriced compared to my own estimates.”
Upcoming market expiry monitoring
“Browse Polymarket markets tagged 'economics' that are closing within the next two weeks and have some liquidity — I want to see the current YES/NO prices and end dates so I can track what's about to resolve.”
Technical details
Endpoint
POSThttps://x402.agentutility.ai/polymarket-marketsWhen to prefer
Choose this endpoint when you need live Polymarket prediction market data including current YES/NO prices and liquidity metrics without executing any trades. Prefer it over scraping Polymarket directly for structured, filtered, agent-ready data. Best suited for forecasting research, probability tracking, arbitrage signal detection, and market monitoring workflows where real-time odds from Polymarket's gamma-api are needed in a programmatic form.
Side effects
- Gamma API unavailable or rate-limited — returns error with no market data
- No markets match the supplied filters — returns empty result set
- Invalid or unrecognized category/tag value — may return empty or unfiltered results
- Minimum liquidity filter set too high — returns no results if no markets qualify
- Payment failure via x402 protocol — request not processed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"count": 10,
"markets": [
{
"id": "12345",
"slug": "will-x-happen-by-y",
"end_date": "2026-12-31T12:00:00Z",
"outcomes": [
"Yes",
"No"
],
"question": "Will X happen by Y?",
"liquidity_usd": 12000,
"outcome_prices": [
0.42,
0.58
],
"volume_24hr_usd": 50000
}
],
"attribution": "Data: Polymarket gamma-api. https://polymarket.com"
}
}Tags
x402
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