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SYNTHORA Prediction Market Odds
x402
SYNTHORA Prediction Market Odds is a paid API for AI agents from prediction-markets.hergertsynthora.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Fetches real-time prediction-market odds and liquidity data from Polymarket for any topic including elections, crypto, and macroeconomics
Price / call$0.01
Success—
StatusUnknown
How this service works
Real-time prediction-market odds and liquidity from Polymarket for any topic (elections, crypto, macro). For forecasting and hedging agents. Free source. $0.001 USDC via x402 on Base. SYNTHORA.
Output
Returns a JSON object with an 'ok' status flag, a 'niche' identifier ('prediction-markets'), and a 'result' object containing real-time market odds, probabilities, and liquidity data from Polymarket for the queried topics, filtered and limited per the input parameters.
Example use cases
Election probability monitoring
“What are the current Polymarket odds for the US 2024 presidential election? Show me the top 5 most-traded markets and their probabilities.”
Crypto price forecast hedging
“I want to hedge my ETH position — can you pull the latest Polymarket odds on ETH price milestones and tell me how liquid those markets are?”
Macro event forecasting
“Get me the top 10 open prediction markets on Polymarket about Fed rate decisions or a US recession so I can see what the crowd is pricing in right now.”
Technical details
Endpoint
POSThttps://prediction-markets.hergertsynthora.com/serviceWhen to prefer
Use this endpoint when you need real-time crowd-sourced probability estimates from Polymarket's prediction markets — especially for elections, crypto price targets, or macro events. Prefer this over news sentiment APIs when you want market-priced probabilities with liquidity signals rather than qualitative sentiment. Ideal for forecasting and hedging agents that need quantitative probability data.
Side effects
- Empty result set if no markets match the closed/open filter
- Polymarket API unavailability causing stale or missing data
- Invalid 'closed' parameter value returning an error
- Exceeding rate limits resulting in payment or quota errors
- Network timeout if Polymarket upstream is slow
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| limit | integer | max markets to return (1-50, default 10) |
| source | string | exchange filter |
| min_liquidity | number | minimum liquidity in USD (default 1000) |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"niche": "prediction_markets",
"result": {
"count": 1,
"source": "all",
"markets": [
{
"id": "559651",
"spread": 0.01,
"end_date": "2026-12-31T00:00:00Z",
"exchange": "polymarket",
"question": "Xi Jinping out before 2027?",
"volume_usd": 1234567.89,
"liquidity_usd": 278050.28,
"probability_yes": 0.05
}
],
"freshness_utc": "2026-08-07T12:00:00Z",
"total_liquidity_usd": 278050.28
}
}
}Tags
x402
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