# Numora Net Present Value (NPV) Calculator

> Numora Net Present Value (NPV) Calculator is a paid API for AI agents from numomo.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).

Computes the Net Present Value of a series of cash flows discounted at a given rate, returning the NPV result with a human-readable computation description

## Facts

- Endpoint: POST https://numomo.vercel.app/api/financial/npv
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/numora-net-present-value-npv-calculator-201d8c76
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hDrXj4PDyocD-Y6qQOqXo

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability numora-net-present-value-npv-calculator-201d8c76 -d '<json body>'
```

Example prompt: Calculate the NPV of a project with a 10% discount rate and cash flows of [-10000, 3000, 4000, 4000, 3000] — tell me if this investment is worth pursuing.

## When to prefer this

Choose this endpoint when you need a pure server-side NPV computation with no external data dependencies — ideal for AI agents performing financial analysis, capital budgeting, or investment screening where you already have the cash flow series and discount rate. Prefer this over spreadsheet tools or LLM-native math when you need a deterministic, auditable numeric result. Best for scenarios requiring fast, reliable financial math without needing market data or asset price lookups.

## Known failure modes

- Missing required 'rate' field returns validation error
- Missing or empty 'cashflows' array returns validation error
- Non-numeric values in cashflows array cause computation failure
- Rate provided as percentage (e.g. 10) instead of decimal (0.10) may produce unexpected results
- Empty cashflows array may return zero or error
- Network timeout if Vercel cold start is slow

## 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 boolean success flag, a result object containing the computed NPV value, and a computation string providing a human-readable description of what was calculated (e.g. the discount rate used and sum of discounted cash flows).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "rate",
  "cashflows"
 ],
 "properties": {
  "rate": {
   "type": "number"
  },
  "cashflows": {
   "type": "array"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "success",
  "result",
  "computation"
 ],
 "properties": {
  "result": {
   "type": "object",
   "description": "Computation result varies by endpoint"
  },
  "success": {
   "type": "boolean",
   "description": "Always true on success"
  },
  "computation": {
   "type": "string",
   "description": "Human-readable description of what was computed"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/numora-net-present-value-npv-calculator-201d8c76/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from numomo.vercel.app](https://www.zero.xyz/host/numomo.vercel.app/llms.txt)