# KiHustle Pearson Correlation Coefficient Calculator

> KiHustle Pearson Correlation Coefficient Calculator is a paid API for AI agents from kihustle.tech, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-13).

Computes the Pearson correlation coefficient between two numeric data series

## Facts

- Endpoint: POST https://kihustle.tech/agents/api/v1/json-correlation-pearson
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/kihustle-pearson-correlation-coefficient-calculator-cded7202
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XsnQXW524549TrVsGsyRj

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 kihustle-pearson-correlation-coefficient-calculator-cded7202 -d '<json body>'
```

Example prompt: Calculate the Pearson correlation coefficient between these two series: series A is [1, 2, 3, 4, 5] and series B is [2.1, 4.0, 5.9, 8.1, 10.0] — I want to know how strongly they're linearly related.

## When to prefer this

Choose this endpoint when you need a quick, paid-per-call Pearson correlation computation without setting up your own statistical library or running local code. Ideal for AI agents that need on-demand correlation analysis as part of a larger workflow without a dedicated data science backend. At $0.002 per call it is cost-effective for occasional or moderate-volume correlation checks.

## Known failure modes

- Mismatched array lengths between series_a and series_b causing computation error
- Empty arrays or single-element arrays that make correlation undefined
- Non-numeric values in either series causing parsing failure
- Zero-variance series (all identical values) causing division-by-zero in Pearson formula
- Missing series_a or series_b in request body

## How this service works

Kostenlose Guides, Solo-Playbooks und Artikel zu KI, Automation und Side Hustles — für Menschen, die mit echten Systemen online Einkommen aufbauen wollen. Transparent finanziert über faire Affiliate-Links.

## Output

Returns a JSON object with a 'result' field containing the computed Pearson correlation coefficient (a value between -1 and 1 indicating the strength and direction of the linear relationship) and a 'status' field indicating success or failure of the computation.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "series_a": {
   "type": "array",
   "items": {
    "type": "number"
   }
  },
  "series_b": {
   "type": "array",
   "items": {
    "type": "number"
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": "processed",
  "status": "success"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/kihustle-pearson-correlation-coefficient-calculator-cded7202/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kihustle.tech](https://www.zero.xyz/host/kihustle.tech/llms.txt)