# Numora Statistics Correlation Endpoint

> Numora Statistics Correlation Endpoint is a paid API for AI agents from numormor.netlify.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).

Computes the statistical correlation coefficient between two numeric arrays

## Facts

- Endpoint: POST https://numormor.netlify.app/api/statistics/correlation
- 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-statistics-correlation-endpoint-416882e7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JK_NMDXQSO1eBO96tEknX

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-correlation-endpoint-416882e7 -d '<json body>'
```

Example prompt: Can you calculate the statistical correlation between these two datasets for me — x is [10, 20, 30, 40, 50] and y is [12, 24, 28, 44, 53]?

## When to prefer this

Choose this endpoint when you need a fast, serverless, zero-dependency computation of statistical correlation between two numeric arrays without setting up a local math library. Ideal for AI agents needing on-demand pure math computation paid per-call via x402 micropayments on Base.

## Known failure modes

- Missing x or y array returns 400 validation error
- Arrays of unequal length may return an error or NaN result
- Empty arrays cause computation failure
- Non-numeric values in arrays cause type errors
- Payment not provided or insufficient USDC triggers 402 response

## 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 correlation coefficient and possibly related statistics, and a human-readable computation string describing what was calculated.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "x",
  "y"
 ],
 "properties": {
  "x": {
   "type": "array"
  },
  "y": {
   "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-correlation-endpoint-416882e7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from numormor.netlify.app](https://www.zero.xyz/host/numormor.netlify.app/llms.txt)