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4SEC Futures Long/Short Ratio API
x402
4SEC Futures Long/Short Ratio API is a paid API for AI agents from api.foursec.xyz, paid per call via x402, $0.02/call, status down (last checked 2026-09-15).
Returns real-time long/short ratio signals and top trader positioning data for a given crypto futures symbol, aggregated across multiple DEXes.
Price / call$0.02
Success—
StatusDown
How this service works
Real-time multi-DEX aggregated crypto market data. Pay per request with USDC on Base via x402 protocol.
Output
Returns a JSON object containing a signal string (e.g. 'long' or 'short'), the queried symbol, a timestamp, and a top_traders object with positioning breakdown data aggregated across multiple DEXes.
Example use cases
Crypto trading signal dashboard
“Pull the latest long/short ratio signal for ETHUSDT futures — I want to see how top traders are positioned before I place a trade.”
DeFi sentiment monitoring bot
“Check the 4SEC futures sentiment signal for SOLUSDT and tell me whether the market is leaning long or short based on top trader data.”
Automated trade entry filter
“Before I open a long position on BTCUSDT, fetch the current long/short signal from 4SEC so I can confirm trader sentiment is bullish.”
Technical details
Endpoint
GEThttps://api.foursec.xyz/futures/long-short/%7Bsymbol%7DWhen to prefer
Choose this endpoint when you need real-time, multi-DEX aggregated long/short sentiment and top-trader positioning for crypto futures symbols. It is particularly useful for trading agents that need a directional signal before entering or exiting positions, or for monitoring smart money positioning. Prefer this over single-exchange or order-book-only data sources when you want aggregated DEX-level insights paid per-request via crypto microtransactions.
Side effects
- Invalid or unsupported symbol returns an error or empty result
- Payment failure via x402 protocol if USDC balance is insufficient
- Symbol path parameter missing or malformed resulting in 404
- Rate limiting or API unavailability during high-traffic periods
- Stale data if DEX aggregation sources experience delays
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "object",
"example": {
"signal": {
"type": "string"
},
"symbol": {
"type": "string"
},
"timestamp": {
"type": "string",
"format": "date-time"
},
"top_traders": {
"type": "object"
}
}
}Tags
x402
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