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4SEC Arbitrage Opportunity Finder
x402
4SEC Arbitrage Opportunity Finder is a paid API for AI agents from api.foursec.xyz, paid per call via x402, $0.05/call, status down (last checked 2026-09-15).
Returns real-time cross-DEX arbitrage opportunities aggregated from multiple decentralized exchanges
Price / call$0.05
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 timestamp of the data fetch, the total count of detected arbitrage opportunities, and an array of opportunity objects with details about price discrepancies across multiple DEXes.
Example use cases
Real-time arbitrage bot signal
“Check for any current arbitrage opportunities across DEXes and alert me if there are profitable price gaps I should act on — I need the latest data right now.”
DeFi research dashboard feed
“Fetch the current list of cross-DEX arbitrage opportunities so I can display them on my DeFi research dashboard and track how many exist at this moment.”
Trading strategy backtesting trigger
“Pull the current arbitrage opportunity data from 4SEC, including the timestamp and total count, so I can log it as a snapshot for my strategy analysis.”
Technical details
Endpoint
GEThttps://api.foursec.xyz/arbitrage-opportunityWhen to prefer
Choose this endpoint when you need real-time, multi-DEX aggregated arbitrage signals without building your own DEX data pipeline. It is ideal for trading bots, DeFi dashboards, or research tools that need pre-aggregated cross-exchange price gap data on demand. Prefer it over raw DEX APIs when you want a single call that spans multiple exchanges rather than querying each DEX individually.
Side effects
- Payment not received or insufficient USDC balance — 402 Payment Required response
- Invalid or malformed query parameters — 400 Bad Request
- Upstream DEX data unavailable causing stale or missing results
- Rate limiting or network timeout from the API host
- No arbitrage opportunities found at query time — empty opportunities array with total: 0
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "object",
"example": {
"total": {
"type": "integer"
},
"timestamp": {
"type": "string",
"format": "date-time"
},
"opportunities": {
"type": "array",
"items": {
"type": "object"
}
}
}
}Tags
x402
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