the402 endpoint detail

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x402financialdata.com trending-markets

https://www.x402financialdata.com/trending-markets

answers 402

Top active prediction markets by 24h trading volume on Polymarket -- what's trending right now, no keyword needed. Pairs with /prediction-markets (keyword search) and /prediction-market (exact-ID lookup): use this one when you don't already know what to search for. Not ticker-specific. Supports optional limit (default 10, max 25). $0.01/call.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.01
Network
base
Pay to
0xe4181c7de066959bcca010525304ba68a84768e0
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
146 ms
Payment options
2 usable of 2
Last checked
2026-08-15T14:26:07.307Z (1d ago)
Category
search

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fwww.x402financialdata.com%2Ftrending-markets"