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GET /v1/correlation

Pearson correlation

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10 free calls per day — no sign-up, no API key. Goes through the oanor gateway.

Custom headers (optional)
api.oanor.com/stats-api

It works. Grab an API key and use it in your project.

Get an API key

Code snippets

curl "https://api.oanor.com/stats-api/v1/correlation" \
  -H "x-oanor-key: oanor_test_..."
await fetch("https://api.oanor.com/stats-api/v1/correlation", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
$ch = curl_init("https://api.oanor.com/stats-api/v1/correlation");
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$out = curl_exec($ch);
import requests
requests.get(
    "https://api.oanor.com/stats-api/v1/correlation",
    headers={"x-oanor-key": "oanor_test_..."}
)

Example response

A real response from this endpoint, captured by the latest health check.

{
    "data": {
        "n": 5,
        "pearson_r": 1,
        "r_squared": 1
    },
    "meta": {
        "timestamp": "2026-06-02T16:51:48.820Z",
        "request_id": "4a9c1bbf-03e9-496f-b776-ec5569afb93d"
    },
    "status": "ok",
    "message": "Pearson correlation",
    "success": true
}