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Otto AI Polymarket Movers
x402
Otto AI Polymarket Movers is a paid API for AI agents from x402.ottoai.services, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).
Returns the 20 biggest 24-hour odds movements across active Polymarket prediction markets, ranked by move size, with live trading data and event links.
Price / call$0.002
Success—
StatusUnknown
How this service works
Polymarket movers RIGHT NOW: the 20 biggest 24h odds moves across active prediction markets, ranked by move size, each with direction, the raw 1d and 7d change, live odds, best bid/ask, spread, volume, liquidity and the event link. A tradability floor keeps dead-market swings out. Flat JSON, refreshed every 5 minutes. Polymarket odds movers, biggest prediction-market moves, event probability shifts, market momentum. $0.002 per call.
Output
A flat JSON object containing up to 20 Polymarket market movers, each with: the event question and title, event URL, market ID, condition ID, direction of move (up/down), absolute 24h odds move, 1-day and 7-day price changes, best bid and ask prices, spread, 24h and total USD volume, liquidity in USD, last trade price, and outcome probabilities. Also includes metadata: total candidates scanned, generation timestamp, staleness, and degraded-mode flag. Data is refreshed every 5 minutes and filtered by a tradability floor to exclude illiquid dead markets.
Example use cases
Daily prediction market momentum scan
“Give me today's biggest Polymarket movers — I want to see which events had the largest odds swings in the last 24 hours, along with their current probabilities and trading volume.”
Spotting tradeable prediction market opportunities
“Are there any Polymarket prediction markets with major 24-hour odds moves that still have decent liquidity and tight spreads? I'm looking for something worth trading.”
Tracking political or crypto event probability shifts
“Show me which Polymarket events moved the most in the last day — I'm watching for big shifts on political or crypto-related questions and want to see direction and magnitude of each move.”
Technical details
Endpoint
GEThttps://x402.ottoai.services/pm-moversWhen to prefer
Use this endpoint when you need a real-time, pre-ranked snapshot of the most volatile prediction markets on Polymarket without having to scan all markets yourself. It is ideal for agents monitoring market momentum, identifying trading opportunities, or surfacing newsworthy probability shifts. Prefer this over scraping Polymarket directly when you need structured JSON with bid/ask/spread/volume in a single call. Not suitable if you need a specific market by ID, historical data, or markets outside Polymarket.
Side effects
- No active markets meet tradability floor — returns empty movers array
- Polymarket data source temporarily unavailable — may return degraded:true with stale data
- Payment not included or insufficient — 402 Payment Required with x402 challenge
- Rate limit exceeded — request throttled
- Response may be up to 5 minutes stale if no recent refresh
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"data": {
"venue": "polymarket",
"movers": [
{
"url": "https://polymarket.com/event/bitcoin-price-in-september",
"slug": "will-bitcoin-close-above-150k-in-september",
"spread": 0.02,
"bestAsk": 0.33,
"bestBid": 0.31,
"endDate": "2026-09-30T00:00:00Z",
"marketId": "542193",
"outcomes": [
{
"outcome": "Yes",
"probability": 0.32
},
{
"outcome": "No",
"probability": 0.68
}
],
"question": "Will Bitcoin close above $150k in September?",
"direction": "down",
"absMove24h": 0.14,
"eventTitle": "Bitcoin price in September",
"conditionId": "0x9a1c0f1934bb39421651ad2ba0f04494700ba9e95663a5c141a8674c4978c1abc",
"liquidityUsd": 842119.5,
"volume24hUsd": 1284502.7,
"lastTradePrice": 0.32,
"volumeTotalUsd": 18450221.4,
"oneDayPriceChange": -0.14,
"oneWeekPriceChange": -0.21
}
],
"window": "24h",
"moverCount": 20,
"generatedAt": "2026-09-01T12:00:00.000Z",
"candidatesScanned": 150
},
"meta": {
"degraded": false,
"validUntil": "",
"generatedAt": "",
"stalenessSec": 0
},
"status": "success"
}
}Tags
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