# Numora Statistics T-Test Endpoint

> Numora Statistics T-Test Endpoint is a paid API for AI agents from numormo.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).

Performs a two-sample t-test on two numeric arrays and returns the t-statistic, p-value, and related statistical results

## Facts

- Endpoint: POST https://numormo.vercel.app/api/statistics/ttest
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/numora-statistics-t-test-endpoint-eb27413d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_tXrdMfcxPm6Ni0CcWGK-4

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-statistics-t-test-endpoint-eb27413d -d '<json body>'
```

Example prompt: Run a two-sample t-test comparing these two groups: sample1 is [23.1, 25.4, 22.8, 24.6, 26.0] and sample2 is [19.3, 21.0, 20.5, 18.9, 22.1] — tell me if the difference is statistically significant.

## When to prefer this

Choose this endpoint when you need a fast, dependency-free two-sample t-test computation without setting up a local statistics library. It is ideal for AI agents that need on-demand hypothesis testing as part of automated data analysis pipelines, and when x402 micropayment billing per computation is acceptable. Prefer this over general-purpose Python/R environments when you want a single deterministic API call with structured JSON output.

## Known failure modes

- Empty or single-element arrays causing degenerate t-test computation
- Arrays containing non-numeric values causing parsing errors
- Missing required sample1 or sample2 fields returning validation error
- Payment failure via x402 micropayment protocol blocking the request
- Arrays of very unequal length may affect test validity or cause errors

## 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 human-readable computation description, and a result object containing the t-statistic, p-value, degrees of freedom, and likely a boolean or indicator of statistical significance at standard thresholds.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "sample1",
  "sample2"
 ],
 "properties": {
  "sample1": {
   "type": "array"
  },
  "sample2": {
   "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-statistics-t-test-endpoint-eb27413d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from numormo.vercel.app](https://www.zero.xyz/host/numormo.vercel.app/llms.txt)