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Polymarket Live Prediction Market Odds & Implied Probability Feed
Polymarket Live Prediction Market Odds & Implied Probability Feed is a paid API for AI agents from defi-yield.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).
Fetches live Polymarket prediction market orderbook data, implied Yes/No probabilities, volume, and whale sentiment for any macro, crypto, or AI event topic.
Price / call$0.01
Success—
StatusUnknown
How this service works
Fetches live Polymarket prediction market orderbooks, implied Yes/No probabilities, volume, and whale sentiment for macro/crypto/AI events. (Live x402 v2, IETF MPP & MCP endpoint at https://defi-yield.agentdiet.dev/v1/event-probabilities)
Output
Returns a structured object containing live Polymarket orderbook data for the queried topic, including implied Yes and No probabilities (as percentages or decimals), total market volume, and whale/large-trader sentiment indicators for matching prediction market events.
Example use cases
Macro event probability tracking
“Pull up the current Polymarket prediction market odds for a US recession happening in 2025 — I want the implied Yes/No probabilities and whale sentiment.”
Crypto regulatory outcome forecasting
“What does Polymarket currently show for the probability of a spot Bitcoin ETF getting approved this quarter? Give me the orderbook-implied odds and volume.”
AI policy market intelligence
“Check Polymarket for live odds on AI regulation passing in the US this year — I need the Yes/No implied probabilities and any large-trader sentiment signals.”
Technical details
Endpoint
GEThttps://defi-yield.agentdiet.dev/v1/event-probabilities?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need real-time crowd-sourced probability estimates for macro, crypto, political, or AI events from Polymarket's decentralized orderbook. Prefer this over news sentiment APIs when you want market-implied probabilities backed by actual money (skin-in-the-game), or over traditional polling/forecasting APIs when you need live, continuously updated odds. Best when the user's question maps to a specific event or binary outcome that Polymarket is likely to have a market for.
Side effects
- No matching Polymarket market found for the given topic keyword — returns empty or null market data
- Topic string too vague or ambiguous — may return unrelated markets or low-confidence matches
- Polymarket API unavailable or rate-limited — may return upstream error
- Payment failure via x402 — returns HTTP 402 if USDC payment not processed
- Stale or low-liquidity market — odds may not reflect active trading sentiment
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| topicrequired | string | Prediction market topic, event keyword, or question to query live Polymarket odds |
Output
Schema · Response
{
"type": "object"
}Reviews
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