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finmath Impermanent Loss Calculator
x402
finmath Impermanent Loss Calculator is a paid API for AI agents from finmath.qzqh5rrbkz.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Calculates the impermanent loss percentage for a DeFi liquidity provider given a price ratio between the current and initial asset prices.
Price / call$0.001
Success—
StatusUnknown
How this service works
Deterministic finance and crypto math for AI agents: TradFi (NPV, IRR, XIRR, Black-Scholes + Greeks, bonds, VaR, Sharpe) and DeFi (impermanent loss, perp liquidation, funding, Uniswap v3, health factor, cost basis). Exact, model-free arithmetic that LLMs get wrong — priced per call in USDC.
Output
Returns a result object containing the computed impermanent loss (typically as a decimal or percentage) along with metadata about the calculation. For example, a price_ratio of 2.0 would return the well-known ~5.72% impermanent loss figure for a constant-product AMM.
Example use cases
Example prompt
“What's the impermanent loss if the price ratio between my two assets is now 2.5x what it was when I deposited into the liquidity pool?”
Technical details
Endpoint
POSThttps://finmath.qzqh5rrbkz.workers.dev/v1/impermanent_lossWhen to prefer
Use this endpoint when you need exact, deterministic impermanent loss calculations for AMM liquidity positions and cannot rely on LLM arithmetic (which is error-prone for financial math). Prefer this over manual calculation or general-purpose LLMs for any production DeFi portfolio tracking, risk assessment, or LP strategy evaluation.
Side effects
- Missing required price_ratio field returns a validation error
- price_ratio of 0 or negative value may cause a division error or invalid result
- Non-numeric price_ratio returns a schema validation error
- Network timeout on Cloudflare Worker edge node
- Payment failure (402) if USDC balance is insufficient for the $0.001 per-call fee
Input
{
"price_ratio": 1.5
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| price_ratiorequired | number | price_ratio |
Output
{
"meta": {
"tool": "impermanent_loss",
"model": true,
"disclaimer": "Deterministic calculation utility. Not financial, investment, or trading advice.",
"assumptions": [
"50/50 constant-product (Uniswap-v2 style) pool",
"excludes LP fees earned (fees can offset or exceed IL)"
],
"deterministic": true
},
"result": -0.020204102886728803
}Schema · Response
| Field | Type | Description |
|---|---|---|
| metarequired | object | |
| resultrequired | — |
Tags
x402
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