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Delx MEV Sandwich Upper Bound Calculator
x402
Delx MEV Sandwich Upper Bound Calculator is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).
Computes the upper-bound loss and price impact fraction a trade would suffer from a MEV sandwich attack given pool reserves and trade size
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.
Output
Returns a JSON object with schema tag 'delx/util-mev-sandwich-upper/v1', the upper-bound notional loss the trade would suffer (loss_notional, in input asset units), and the fractional price impact (impact_fraction as a decimal between 0 and 1) that a sandwich attacker could extract.
Example use cases
Pre-trade MEV risk check
“Before I submit this swap of 5000 tokens on a pool with 200000 tokens reserve in and 180000 tokens reserve out, tell me the maximum notional loss and impact fraction a sandwich bot could extract from me.”
Comparing trade sizes for MEV safety
“I'm deciding between swapping 1000 or 10000 units on a pool with 300000 reserve in and 270000 reserve out — what's the upper-bound sandwich loss for the 10000-unit trade?”
MEV profitability analysis for a bot builder
“Given a pool with 1000000 reserve in and 950000 reserve out, and a victim trade of 50000 units, what's the maximum notional profit and impact fraction a sandwich attacker could achieve?”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/mev-sandwich-upper?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, pay-per-call computation of the maximum value a sandwich attacker could extract from a specific AMM trade, without setting up any infrastructure. Prefer this over building custom AMM math when you want a verifiable, auditable result with exact pricing and no subscription.
Side effects
- Missing required fields (amount_in, reserve_in, reserve_out) returns a validation error
- Non-positive reserve or trade values may produce undefined or infinite results
- Payment failure via x402 protocol results in 402 Payment Required response
- Extremely large or small floating point inputs may cause precision issues
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| amount_in | number | Trade size in input asset units |
| reserve_in | number | Pool reserve of input asset |
| reserve_out | number | Pool reserve of output asset |
Output
Schema · Response
{
"type": "json",
"example": {
"schema": "delx/util-mev-sandwich-upper/v1",
"loss_notional": 0.990099009900991,
"impact_fraction": 0.00990099009900991
}
}Tags
x402
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