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mdapi Pulse Odds — Polymarket Live Odds Fetcher
x402
mdapi Pulse Odds — Polymarket Live Odds Fetcher is a paid API for AI agents from md.fastdb.in, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Fetches live prediction market odds and pricing data from Polymarket for any query topic, returning structured JSON with prices, spreads, liquidity, and market metadata.
Price / call$0.001
Success—
StatusUnknown
How this service works
Polymarket prediction market odds — live prices for any market by free-text search or slug: outcomes, prices, spread, 24h volume, liquidity, resolution date.
Output
Returns a JSON object containing the search query, source (Polymarket), and an array of matching markets. Each market includes: the question text, URL, slug, active status, outcome labels (e.g. Yes/No), current prices per outcome, best bid/ask, spread, total liquidity in USD, 24-hour volume, 24-hour price change, and the market end date.
Example use cases
Sports event probability lookup
“What does Polymarket currently say about the chances of the Golden State Warriors winning the NBA championship this season? I want the yes/no prices, liquidity, and any recent price movement.”
Political election odds check
“Pull the latest Polymarket odds on who will win the 2026 US Senate majority — give me the current prices and 24-hour price changes for each outcome.”
Crypto or macro event forecast
“What's the current market probability on Polymarket that the Fed will cut interest rates at the next FOMC meeting? I need the bid, ask, spread, and total liquidity.”
Technical details
Endpoint
POSThttps://md.fastdb.in/pulse/oddsWhen to prefer
Choose this endpoint when you need live, structured prediction market data from Polymarket for any topic — sports, politics, crypto, macro events — and want machine-readable JSON with prices, spreads, and liquidity rather than scraping the Polymarket website yourself. Ideal for agents that need to reason about market-implied probabilities without requiring a Polymarket API key or account. Prefer over manual web scraping when you need clean structured output ready for downstream analysis.
Side effects
- No markets found for the query — empty markets array returned
- Query too vague or misspelled yields irrelevant markets
- Polymarket API upstream unavailable — service may return error or empty response
- Market has low liquidity or is inactive — prices may be stale or unreliable
- Payment via x402/USDC fails — request not processed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"query": "argentina world cup",
"source": "polymarket",
"markets": [
{
"url": "https://polymarket.com/market/will-argentina-win-the-2026-fifa-world-cup",
"slug": "will-argentina-win-the-2026-fifa-world-cup",
"active": true,
"prices": [
0.4055,
0.5945
],
"spread": 0.003,
"bestAsk": 0.407,
"bestBid": 0.404,
"endDate": "2026-07-20T00:00:00Z",
"outcomes": [
"Yes",
"No"
],
"question": "Will Argentina win the 2026 FIFA World Cup?",
"liquidity": 812000,
"volume24h": 3276661,
"oneDayPriceChange": 0.021
}
]
}
}Tags
x402
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