# Numora — ANOVA (Analysis of Variance) Endpoint

> Numora — ANOVA (Analysis of Variance) Endpoint 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).

Performs one-way ANOVA statistical test across multiple groups to determine if their means differ significantly

## Facts

- Endpoint: POST https://numomo.vercel.app/api/statistics/anova
- 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-anova-analysis-of-variance-endpoint-9f311a86
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qlmG9_KESbGuzjGjmLj4h

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-anova-analysis-of-variance-endpoint-9f311a86 -d '<json body>'
```

Example prompt: Run a one-way ANOVA on these three groups of measurements to see if their means are significantly different: Group A is [23, 25, 28, 22], Group B is [30, 33, 35, 29], and Group C is [40, 38, 42, 45].

## When to prefer this

Choose this endpoint when you need a pure server-side, dependency-free ANOVA computation without setting up a stats library locally. Ideal for AI agents that need to run hypothesis tests on-the-fly within automated pipelines. Prefer over general-purpose math libraries when you want a simple JSON API with micropayment access and no environment setup. Use when comparing three or more groups; for exactly two groups, a t-test endpoint may be more appropriate.

## Known failure modes

- Missing or empty 'groups' array — returns 400 error
- Fewer than two groups provided — ANOVA requires at least 2 groups
- Groups contain non-numeric values — computation will fail
- Groups with zero variance (all identical values) — may produce division-by-zero in F-statistic
- Payment failure via x402 micropayment — request blocked without valid USDC payment

## 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: true, a result object containing key ANOVA statistics (F-statistic, p-value, between-group and within-group sum of squares, degrees of freedom, mean squares), and a computation string that describes in plain English what was calculated and what the results indicate.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "groups"
 ],
 "properties": {
  "groups": {
   "type": "array",
   "description": "Array of groups"
  }
 }
}
```

## 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-anova-analysis-of-variance-endpoint-9f311a86/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)