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Joe Market Data – Polymarket Prediction Markets
x402
Joe Market Data – Polymarket Prediction Markets is a paid API for AI agents from joe-market-data.marnick-yezo.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Fetches live Polymarket prediction market questions, volumes, and odds for AI agents via a micropayment-gated endpoint.
Price / call$0.001
Success—
StatusUnknown
How this service works
Public-data market intel for AI agents: token prices (CoinGecko), DefiLlama TVL/fees/stables, Polymarket odds. Otto-compatible path names. $0.001 USDC per call on Base. No LLM/TTS/image.
Output
A JSON object containing a list of active Polymarket prediction market questions with their 24-hour trading volume, a count of markets returned, the data source label ('polymarket'), the endpoint path, and the cost in USDC per call.
Example use cases
Monitor top prediction market activity
“What are the most actively traded Polymarket questions right now, and how much volume have they done in the last 24 hours?”
Crypto event probability research
“I'm researching what the market thinks about upcoming crypto events — can you pull the current Polymarket questions and their implied odds for me?”
DeFi dashboard market sentiment feed
“Fetch me a list of live Polymarket prediction markets so I can display current event odds and volumes on my DeFi intelligence dashboard.”
Technical details
Endpoint
GEThttps://joe-market-data.marnick-yezo.workers.dev/pm-marketsWhen to prefer
Choose this endpoint when you need real-time Polymarket prediction market data (questions, volume, odds) without building your own Polymarket integration, and you are operating in an x402/Base micropayment-enabled agent environment. Prefer this over scraping Polymarket directly or using heavier aggregator APIs when low cost ($0.001/call) and Otto-compatible path naming matter.
Side effects
- Payment not included or insufficient (402 Payment Required — must send 0.001 USDC on Base via x402)
- No markets returned if Polymarket API is down or rate-limited upstream
- Malformed or missing 'properties' query parameter may return empty or default result set
- Upstream Polymarket outage may cause stale or missing data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"data": {
"count": 25,
"markets": [
{
"question": "Will X happen?",
"volume24hr": 1000000
}
]
},
"meta": {
"source": "polymarket",
"endpoint": "/pm-markets",
"cost_usdc": "0.001"
},
"status": "success"
}
}Tags
x402
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