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HARS-Zero Signal API – Breaking Markets
x402
HARS-Zero Signal API – Breaking Markets is a paid API for AI agents from hars.cryptotavern.xyz, paid per call via x402, $0.008/call, status unknown (last checked 2026-10-18).
Fetches Polymarket prediction-market intelligence, surfacing breaking or high-signal markets for AI agents via pay-per-call USDC payments.
Price / call$0.008
Success—
StatusUnknown
How this service works
Polymarket prediction-market intelligence for AI agents. Pay-per-call in USDC via x402 protocol. Multi-chain: Base + Solana.
Output
Returns a JSON object with a count of matching markets and an array of market objects from Polymarket, each representing a prediction market with associated metadata and probability signals. When no matching markets are found, returns count 0 and an empty markets array.
Example use cases
Political event forecasting monitor
“Check the Polymarket breaking markets feed and tell me which political events are currently being bet on most heavily — I want to know where the crowd is focused.”
Crypto news market scanner
“Pull the latest breaking Polymarket markets and filter for anything crypto or DeFi related — I want to see what prediction markets just opened around recent news.”
Daily prediction market briefing
“Give me a morning briefing: fetch the current breaking markets from Polymarket and summarize the top 5 markets by activity so I can decide where to focus my research today.”
Technical details
Endpoint
GEThttps://hars.cryptotavern.xyz/paid/breaking-markets?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need real-time Polymarket prediction market intelligence specifically around breaking or trending markets, and you are comfortable with pay-per-call USDC micropayments via the x402 protocol on Base or Solana. Prefer this over building direct Polymarket integrations when you need a simple, agent-ready REST interface without managing exchange credentials or raw API complexity.
Side effects
- Payment not included or insufficient USDC — 402 Payment Required response
- No breaking markets currently available — returns count:0 and empty markets array
- Invalid properties filter parameter — may return empty results or error
- Network timeout if Polymarket data feed is slow
- Rate limiting if too many calls are made in rapid succession
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "object",
"example": {
"count": 0,
"markets": []
}
}Tags
x402
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