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Foundry Prediction Market Odds
x402
Foundry Prediction Market Odds is a paid API for AI agents from minty-sprout.onrender.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-11-01).
Returns Polymarket prediction market odds, volume, and end dates for top markets or those matching user-supplied keywords
Price / call$0.005
Success—
StatusUnknown
How this service works
Prediction market odds from Polymarket: top markets by 24h volume, or those matching keywords, with implied odds, volume and end date. Input: keywords or 'top'.
Output
A JSON object containing a list of matching Polymarket prediction markets. Each market entry includes the question text, a link to the Polymarket event, market end date/time, implied odds per outcome (as probabilities 0–1), 24-hour USD volume, and USD liquidity. A disclaimer note is included that odds are market-implied, not financial advice.
Example use cases
Checking election prediction odds
“What does Polymarket currently think the odds are for the 2026 US midterm elections? Show me all the relevant markets with their implied probabilities and volume.”
Finding top active prediction markets
“Show me the top prediction markets by 24-hour volume on Polymarket right now — I want to see what topics are being bet on most heavily and what the current odds are.”
Researching crypto market sentiment
“What are the implied odds on Polymarket for Bitcoin ETF approval or any major crypto regulation events? I want to see the market-implied probabilities and liquidity.”
Technical details
Endpoint
POSThttps://minty-sprout.onrender.com/v1/prediction-markets?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need real-time crowd-sourced probability estimates from Polymarket's decentralized prediction markets — covering politics, sports, crypto, and more. Prefer this over news APIs or LLM-generated forecasts when you need market-implied probabilities backed by real money, with volume and liquidity signals included. Best for agents doing research, forecasting, or tracking sentiment on time-bounded events.
Side effects
- Empty or vague keywords may return unrelated or no markets
- Polymarket API downtime may result in stale or unavailable data
- Very niche topics may return zero matching markets
- Payment failure (x402) will block the request before execution
- Markets near expiry may have low liquidity or skewed odds
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | string | Keywords like 'election' or 'top' |
Output
Schema · Response
{
"type": "json",
"example": {
"note": "Market-implied odds, not advice.",
"filter": null,
"source": "Polymarket public API",
"markets": [
{
"url": "https://polymarket.com/event/nba-phi-cha-2026-10-31",
"ends": "2026-10-31T22:00:00Z",
"odds": {
"76ers": 0.38,
"Hornets": 0.62
},
"question": "76ers vs. Hornets",
"liquidity_usd": 90577,
"volume_24h_usd": 3822305
},
{
"url": "https://polymarket.com/event/lol-hle1-blg-2026-10-31-game1",
"ends": "2026-11-01T04:00:00Z",
"odds": {
"Bilibili Gaming": 1,
"Hanwha Life Esports": 0.001
},
"question": "LoL: Hanwha Life Esports vs Bilibili Gaming - Game 1 Winner",
"liquidity_usd": 754936,
"volume_24h_usd": 3587259
},
{
"url": "https://polymarket.com/event/lol-hle1-blg-2026-10-31",
"ends": "2026-11-01T04:00:00Z",
"odds": {
"Bilibili Gaming": 1,
"Hanwha Life Esports": 0.001
},
"question": "LoL: Hanwha Life Esports vs Bilibili Gaming (BO3) - Worlds Group Stage",
"liquidity_usd": 1196457,
"volume_24h_usd": 2059080
}
]
}
}Tags
x402
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