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Financial Data x402 – Trending Markets
x402
Financial Data x402 – Trending Markets is a paid API for AI agents from x402financialdata.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Returns a ranked list of currently trending prediction and financial markets (e.g. from Polymarket), including outcome probabilities, trading volume, and close dates.
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
A JSON object containing a count, the data source (e.g. 'polymarket'), and an array of trending market objects. Each market includes a unique ID, title, source, status (active/closed), a list of outcomes with names and probabilities (0–1), a close date/time, total volume in USD, and 24-hour volume in USD.
Example use cases
Monitor hot political event markets
“Which political events are people betting on most heavily on Polymarket right now? Show me the trending markets with their probabilities and 24-hour volume.”
Find liquid markets for trading ideas
“Pull up the most liquid trending prediction markets today so I can see which ones have the highest volume and still have time before they close.”
Track geopolitical risk sentiment
“What geopolitical events are trending in prediction markets right now, and what probabilities are the market assigning to each outcome?”
Technical details
Endpoint
GEThttps://x402financialdata.com/trending-marketsWhen to prefer
Choose this endpoint when you need a real-time snapshot of the most actively traded or trending prediction markets without requiring an API key or subscription. It is ideal for agents that need zero-setup access to Polymarket trend data paid per-call in USDC via the x402 protocol, especially when you want volume-ranked market discovery rather than querying a specific market by ID.
Side effects
- Payment not received or insufficient USDC — endpoint returns HTTP 402 requiring payment
- Network or upstream Polymarket data unavailable — may return empty markets array or 5xx error
- Malformed payment header — request rejected before data is returned
- No trending markets currently available — count returns 0 with empty array
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| required | string | |
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"count": 1,
"source": "polymarket",
"markets": [
{
"id": "israel-x-iran-ceasefire-continues-through-august-2-20260727170555149",
"title": "Israel x Iran ceasefire continues through August 2?",
"source": "polymarket",
"status": "active",
"outcomes": [
{
"name": "Yes",
"probability": 0.745
},
{
"name": "No",
"probability": 0.255
}
],
"close_date": "2026-08-02T23:59:00Z",
"volume_usd": 1556592.259621001,
"volume_24h_usd": 1112365.174385003
}
]
}
}Tags
x402
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