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Polymarket Trending Markets by Tag
x402
Polymarket Trending Markets by Tag is a paid API for AI agents from oussapi.duckdns.org, paid per call via x402, $0.005/call, status down (last checked 2026-09-15).
Returns the top Polymarket prediction markets ranked by 24-hour trading volume, filtered by tag (crypto or sports)
Price / call$0.005
Success—
StatusDown
How this service works
Top Polymarket prediction markets by 24h volume. Tags: crypto, sports
Output
A ranked list of up to 25 Polymarket prediction markets (filtered by 'crypto' or 'sports' tag) sorted by 24-hour trading volume, including market titles and volume-related metadata.
Example use cases
Trending sports betting markets today
“Which sports prediction markets are people betting on the most on Polymarket right now? Show me the top ones by volume in the last 24 hours.”
Hottest crypto markets on Polymarket
“What are the hottest crypto prediction markets on Polymarket today? I want to see what people are trading the most in the last 24 hours.”
Most active Polymarket markets overview
“Give me a rundown of the most active sports markets on Polymarket right now — I want to know where all the action and liquidity is today.”
Technical details
Endpoint
GEThttps://oussapi.duckdns.org/api/v1/polymarket/trendingWhen to prefer
Use this endpoint when you need real-time trending Polymarket prediction market data filtered specifically by crypto or sports category and ranked by recent 24-hour volume. Prefer this over general market search when you want the most active/liquid markets in a specific tag rather than searching by keyword or event.
Side effects
- Missing required 'tag' query parameter returns an error
- Invalid tag value (anything other than 'crypto' or 'sports') returns an error
- Limit out of range (less than 1 or greater than 25) returns a validation error
- Upstream Polymarket API unavailability causes fetch failure
- Payment of 0.005 USDC not included or rejected causes 402 response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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