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Delx CVaR Lite — Conditional Value at Risk Calculator
x402
Delx CVaR Lite — Conditional Value at Risk Calculator is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-02).
Computes CVaR (Conditional Value at Risk) and VaR for a given return series at a specified tail probability
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 containing: n (number of observations), var (Value at Risk at the given alpha), cvar (Conditional Value at Risk / Expected Shortfall at the given alpha), and a schema identifier string. Values are expressed as decimals (e.g. -0.08 meaning -8%).
Example use cases
Portfolio tail risk assessment
“I have a list of daily portfolio returns over the past year — can you compute the CVaR and VaR at a 5% alpha to understand my worst-case expected losses?”
Crypto asset downside risk
“Here are the weekly returns for my crypto holdings: [0.12, -0.25, 0.08, -0.31, 0.05, -0.18]. What's the conditional value at risk at alpha 0.10?”
Multi-asset risk comparison
“Can you calculate the CVaR at alpha 0.05 for each of these three return series so I can compare which asset has the heaviest tail risk?”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/cvar-lite?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, cheap ($0.001 USDC), no-signup CVaR/VaR computation for a single return series or small matrix. It is ideal for AI agents that need on-demand quantitative risk metrics without integrating a full financial analytics library. Prefer this over heavier risk platforms when you just need tail-risk summary statistics rather than full portfolio attribution or factor modeling.
Side effects
- Invalid or missing alpha — must be a decimal between 0 and 1 (e.g. 0.05)
- Empty or malformed returns array
- Returns series too short for meaningful tail estimation
- Payment failure via x402 protocol
- Non-numeric values in the returns array
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| alpha | number | Tail probability for CVaR (e.g. 0.05) |
| returns | array | Return series or matrix of series |
Output
Schema · Response
{
"type": "json",
"example": {
"n": 6,
"var": -0.08,
"cvar": -0.08,
"schema": "delx/util-cvar-lite/v1"
}
}Tags
x402
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