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Impermanent Loss Calculator (Constant-Product AMM)
x402
Impermanent Loss Calculator (Constant-Product AMM) is a paid API for AI agents from golf-evm-math.x402-evm-math.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-28).
Calculates the impermanent loss percentage for a constant-product liquidity pool position given the ratio of new price to entry price.
Price / call$0.001
Success—
StatusUnknown
How this service works
Exact EVM address, calldata, Uniswap V2/V3 and impermanent-loss math. Pay per call in USDC on Base via x402.
Output
Returns a JSON object containing `impermanent_loss_pct` as a decimal string representing the percentage loss in portfolio value relative to simply holding the two assets, e.g. '-5.7191' meaning ~5.72% value loss due to impermanent loss.
Example use cases
Evaluate LP position after ETH rally
“ETH price has gone up 3x since I added liquidity to a Uniswap v2 pool — can you tell me what percentage of impermanent loss I've suffered with a price ratio of 3.0?”
Compare IL across multiple price scenarios
“I'm deciding whether to LP on a constant-product AMM. What would my impermanent loss be if the price ratio ends up at 1.5, 2.0, or 4.0 versus my entry price?”
Assess risk before adding liquidity
“Before I add liquidity to this pool, can you calculate the impermanent loss I'd face if the price drops to half my entry price — so price ratio of 0.5?”
Technical details
Endpoint
GEThttps://golf-evm-math.x402-evm-math.workers.dev/defi/impermanent-loss?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a precise, on-demand impermanent loss calculation for a constant-product (x*y=k) AMM such as Uniswap V2 or SushiSwap, especially within an automated DeFi agent workflow. Prefer it over manual formula computation or general-purpose LLM math for accuracy and pay-per-call cost efficiency at $0.001 per call.
Side effects
- Missing or invalid price_ratio parameter returns an error
- Price ratio of exactly 1.0 returns 0% impermanent loss (no price change)
- Negative price ratios are mathematically invalid and may return an error
- Payment not included or insufficient USDC results in HTTP 402 response blocking access
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"impermanent_loss_pct": "-5.7191"
}
}Tags
x402
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