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Numora IRR (Internal Rate of Return) Calculator
x402
Numora IRR (Internal Rate of Return) Calculator is a paid API for AI agents from numomo.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-13).
Computes the Internal Rate of Return (IRR) for a series of cash flows using numerical methods
Price / call$0.1
Success—
StatusUnknown
How this service works
100 pure math computation endpoints for AI agents. Statistics, financial math, linear algebra, equation solving, calculus, number theory, sequence generation, and unit conversions. Zero external dependencies. x402 micropayments on Base.
Output
Returns a JSON object with a success boolean, a result object containing the computed IRR value (typically as a decimal or percentage), and a human-readable computation string describing what was calculated.
Example use cases
Startup investment return evaluation
“I'm evaluating a startup deal where I invest $50,000 now and expect to receive $5,000 in year 1, $15,000 in year 2, $25,000 in year 3, and $40,000 in year 4 — what's the IRR on that?”
Real estate project profitability check
“For a real estate flip where I put in $200,000 today and get back $30,000 after 6 months, $80,000 after 12 months, and $140,000 after 18 months, can you calculate the IRR?”
Comparing two capital projects
“I have two projects to compare — Project A has cash flows of -100000, 40000, 45000, 50000 and Project B has -100000, 20000, 35000, 90000. Calculate the IRR for each so I can see which one has a better return rate.”
Technical details
Endpoint
POSThttps://numomo.vercel.app/api/financial/irrWhen to prefer
Choose this endpoint when you need a pure numerical IRR computation with no external data dependencies, and want a fast, deterministic result paid per-call via x402 micropayments. Ideal for AI agents embedded in financial analysis workflows that need to compute IRR on demand without managing a full financial data subscription. Prefer this over spreadsheet tooling or general-purpose code execution when you need a reliable, single-purpose API call.
Side effects
- No valid IRR exists if cash flows never change sign (all positive or all negative) — solver may return an error or NaN
- Non-convergence if cash flows have multiple sign changes producing multiple IRRs
- Empty or single-element cashflows array returns an error
- Extreme cash flow magnitudes may cause numerical instability
- Missing required cashflows field returns a validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| cashflowsrequired | array |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| resultrequired | object | Computation result varies by endpoint |
| successrequired | boolean | Always true on success |
| computationrequired | string | Human-readable description of what was computed |
Tags
x402
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