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agentsvc.io Prediction Markets Search
x402
agentsvc.io Prediction Markets Search is a paid API for AI agents from agentsvc.io, paid per call via x402, $0.009/call, status unknown (last checked 2026-10-10).
Search Polymarket prediction markets by topic or retrieve top markets by 24-hour volume, returning probabilities, liquidity, and price data.
Price / call$0.009
Success—
StatusUnknown
How this service works
86 APIs for AI agents: web scraping and crawling to Markdown, AI summaries, data extraction and cited answers, screenshots and PDF, PDF, OCR and document conversion, news, paper and developer search and more, paid per call with USDC on Base, Solana, Polygon or Arbitrum via x402. No account, no API key, free sample on every service.
Output
A JSON object containing: the search query used, the data source (Polymarket), a count of results, a timestamp of when data was fetched, and an array of market objects each with the event name, question text, outcome probabilities (Yes/No percentages), liquidity in USD, 24h volume in USD, total volume in USD, 24h price change, and a URL to the Polymarket event page.
Example use cases
Crypto event probability check
“Search Polymarket for prediction markets about Ethereum and show me up to 10 results with their current probabilities and 24-hour volume.”
Top markets by daily volume
“What are the top 25 prediction markets by 24-hour volume on Polymarket right now? I want to see what events are being traded most actively.”
Political election odds lookup
“Find me Polymarket prediction markets about the US presidential election — give me the latest odds, liquidity, and how much the probability has shifted in the last 24 hours.”
Technical details
Endpoint
POSThttps://agentsvc.io/api/v1/proxy/prediction-markets?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need real-time crowd-sourced probability estimates for future events, especially crypto, politics, or sports. It aggregates Polymarket's liquidity and volume signals, making it ideal for assessing market consensus without needing a Polymarket account or API key. Prefer this over general web search when you need structured probability data with liquidity context rather than news articles.
Side effects
- Query returns zero markets if the topic is too niche or misspelled
- Limit parameter outside 1–25 range returns a validation error
- Stale data if Polymarket API is slow or unavailable at fetch time
- Network timeout or upstream Polymarket outage causing failed response
- Payment failure via x402 if insufficient USDC balance on Base
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| limit | integer | |
| query | string | Topic to search, e.g. 'bitcoin' or 'election'. Omit for top markets by 24h volume. |
Output
Schema · Response
{
"type": "json",
"example": {
"data": {
"count": 1,
"query": "bitcoin",
"source": "Polymarket",
"markets": [
{
"url": "https://polymarket.com/event/bitcoin-above-on-october-6-2026",
"event": "Bitcoin above ___ on October 6?",
"end_date": "2026-10-06T16:00:00Z",
"outcomes": [
{
"name": "Yes",
"probability": 0.9975
},
{
"name": "No",
"probability": 0.0025
}
],
"question": "Will the price of Bitcoin be above $82,000 on October 6?",
"liquidity_usd": 46546.4,
"volume_24h_usd": 86277.68,
"price_change_24h": 0.011,
"volume_total_usd": 129904.32
}
],
"fetched_at": "2026-10-06T12:00:00.000Z"
},
"success": true
}
}Tags
x402
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