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finmath CAGR from Series
x402
finmath CAGR from Series is a paid API for AI agents from finmath.qzqh5rrbkz.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).
Computes the Compound Annual Growth Rate (CAGR) from a time series of values, with configurable periods-per-year.
Price / call$0.002
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 JSON object with a 'result' field containing the computed CAGR as a decimal (e.g. 0.12 for 12% annual growth), plus a 'meta' object with computation details such as the number of periods and annualization factor used.
Example use cases
Example prompt
“Calculate the exact CAGR from this series of annual portfolio values — [100000, 112000, 125440, 140492] — with 1 period per year, using deterministic math so I get the precise annualized growth rate.”
Technical details
Endpoint
POSThttps://finmath.qzqh5rrbkz.workers.dev/v1/cagr_from_seriesWhen to prefer
Use this endpoint when you need a deterministic, exact CAGR calculation from a sequence of values — especially when LLM-native arithmetic is unreliable or when auditability matters. Prefer this over asking an LLM to compute CAGR directly, over spreadsheet-style tooling, or when the series frequency is non-annual (use periods_per_year to normalize). Ideal for portfolio performance reporting, fund analysis, and any workflow requiring reproducible finance math.
Side effects
- Too few values in the series (fewer than 2 data points) — likely returns a validation error
- Non-numeric or null values in the array — likely returns a parsing or computation error
- periods_per_year set to zero or negative — division error or invalid parameter response
- Malformed JSON body — 400 Bad Request
- Payment not included or insufficient — 402 Payment Required
Input
{
"values": [
100,
110,
121,
133.1
],
"periods_per_year": 1
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| valuesrequired | array | values |
| periods_per_year | number | periods_per_year |
Output
{
"meta": {
"tool": "cagr_from_series",
"disclaimer": "Deterministic calculation utility. Not financial, investment, or trading advice.",
"deterministic": true
},
"result": 0.10000000000000009
}Schema · Response
| Field | Type | Description |
|---|---|---|
| metarequired | object | |
| resultrequired | — |
Tags
x402
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