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DeFi Shield Cross-DEX Arbitrage Opportunity Detector
x402
DeFi Shield Cross-DEX Arbitrage Opportunity Detector is a paid API for AI agents from defi-shield-hazel.vercel.app, paid per call via x402, $0.75/call, status unknown (last checked 2026-09-13).
Detects cross-DEX arbitrage opportunities by comparing token prices across trading pairs on decentralized exchanges
Price / call$0.75
Success—
StatusUnknown
Output
Returns detected arbitrage opportunities including token pair price comparisons across multiple DEXes, price differentials, estimated profit margins, and the specific DEX pairs where the discrepancy exists.
Example use cases
Example prompt
“Check for cross-DEX arbitrage opportunities on the WETH/USDC pair right now — compare prices across Uniswap, Sushiswap, and Curve and tell me if there's a profitable spread.”
Technical details
Endpoint
POSThttps://defi-shield-hazel.vercel.app/api/mev/arb-detectorWhen to prefer
Use this endpoint when you need to identify real-time cross-DEX price discrepancies for specific token pairs, particularly for MEV strategies, arbitrage bots, or DeFi portfolio optimization. Prefer this over manual price lookups when comparing more than two DEXes simultaneously.
Side effects
- Token pair not found on specified DEXes — returns empty opportunities or 404
- DEX price feed unavailable or stale — returns error or degraded data
- Invalid token address provided — returns validation error
- No arbitrage opportunity found — returns empty result set
- Rate limiting or insufficient payment — returns 402 or 429 error
Input
{
"input": {
"body": {
"chain": "base",
"token_address": "0xd9aAEc86B65D86f6A7B630E2c953e5Ff26FE441D"
},
"type": "http",
"method": "POST",
"bodyType": "json"
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
{
"chain": "base",
"message": "Insufficient pairs to detect arbitrage. Need at least 2 trading pairs.",
"data_age": "2026-06-17T04:10:34.257Z",
"cache_ttl": 300,
"token_name": "Unknown",
"token_symbol": "???",
"opportunities": [],
"token_address": "0xd9aAEc86B65D86f6A7B630E2c953e5Ff26FE441D",
"pools_compared": 0,
"response_time_ms": 69,
"max_spread_percent": 0,
"estimated_profit_per_1000": 0
}Tags
x402
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