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Financial Data x402 – Prediction Market Data
x402
Financial Data x402 – Prediction Market Data is a paid API for AI agents from x402financialdata.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).
Fetches live prediction market data (probabilities, volume, status) for a specific market from a given source such as Polymarket, paying per call via x402 protocol with USDC.
Price / call$0.01
Success—
StatusUnknown
How this service works
Pay-per-call stock, macro, on-chain, and crypto data over the x402 protocol. USDC on Base or Solana, no API keys, no subscriptions.
Output
Returns a JSON object containing the market ID, title, data source, current status (active/resolved), outcome names with their current probabilities, closing date, total USD volume, and 24-hour USD trading volume.
Example use cases
Macro event probability tracker
“What's the current Polymarket probability that the Fed hikes rates in 2026? Give me the yes/no odds, total volume, and whether the market is still active.”
Prediction market research for a newsletter
“I'm writing about crowd-sourced forecasts — pull the latest probabilities and 24-hour trading volume for the Polymarket market with ID 'us-recession-2025' so I can cite current numbers.”
Alert when market probability crosses threshold
“Check the Polymarket prediction market for 'btc-etf-approval-2025' and tell me the current probability for Yes — I want to know if it's moved above 70%.”
Technical details
Endpoint
GEThttps://x402financialdata.com/prediction-market/%7Bsource%7D/%7Bmarket_id%7DWhen to prefer
Use this endpoint when you need real-time crowd-sourced probability estimates for macro, political, or crypto events from prediction markets like Polymarket, without needing an API key or subscription — especially when paying programmatically per call via x402 USDC on Base or Solana.
Side effects
- Invalid source name returns an error or empty result
- Unknown market_id returns 404 or empty response
- Payment failure via x402 if USDC balance is insufficient
- Market may be resolved/closed — status field indicates this
- Network latency from upstream prediction market data provider
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"id": "fed-rate-hike-in-2026",
"title": "Fed rate hike in 2026?",
"source": "polymarket",
"status": "active",
"outcomes": [
{
"name": "Yes",
"probability": 0.615
},
{
"name": "No",
"probability": 0.385
}
],
"close_date": "2026-12-09T00:00:00Z",
"volume_usd": 5645666.92,
"volume_24h_usd": 624904.36
}
}Tags
x402
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