# Numora Descriptive Statistics API

> Numora Descriptive Statistics API 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 descriptive statistics (mean, median, mode, variance, std dev, etc.) for a numerical dataset

## Facts

- Endpoint: POST https://numomo.vercel.app/api/statistics/descriptive
- 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-descriptive-statistics-api-0a3250c3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mJyS39bPGrhJ9KbWRZAk6

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-descriptive-statistics-api-0a3250c3 -d '<json body>'
```

Example prompt: Can you compute descriptive statistics for this dataset: [4, 7, 13, 2, 9, 7, 15, 3, 7, 11]? I need mean, median, mode, variance, and standard deviation.

## When to prefer this

Choose this endpoint when you need fast, dependency-free descriptive statistics computed server-side without setting up a local math library. Ideal for AI agents that need a quick statistical summary of a dataset during a workflow, especially when the agent environment lacks numeric computation libraries. The x402 micropayment model means no API key setup — pay per call on Base.

## Known failure modes

- Missing required 'data' field returns validation error
- Empty array input may return error or undefined statistics
- Non-numerical values in the array cause computation failure
- Payment failure via x402 micropayment results in 402 Payment Required
- Very large arrays may hit timeout or memory limits on Vercel serverless

## 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 success flag, a human-readable computation description, and a result object containing descriptive statistics measures such as mean, median, mode, variance, standard deviation, min, max, and count for the provided numerical dataset.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "data"
 ],
 "properties": {
  "data": {
   "type": "array",
   "description": "Numerical dataset"
  }
 }
}
```

## 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-descriptive-statistics-api-0a3250c3/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)