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GET /v1/annualize

Annualize a total return

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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/cagr-api

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Code snippets

curl "https://api.oanor.com/cagr-api/v1/annualize" \
  -H "x-oanor-key: oanor_test_..."
await fetch("https://api.oanor.com/cagr-api/v1/annualize", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
$ch = curl_init("https://api.oanor.com/cagr-api/v1/annualize");
curl_setopt($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/cagr-api/v1/annualize",
    headers={"x-oanor-key": "oanor_test_..."}
)

Example response

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

{
    "data": {
        "note": "Annualized = (1 + total_return)^(1/years) − 1.",
        "inputs": {
            "years": 3,
            "total_return": 0.5
        },
        "annualized_return": 0.14471424,
        "annualized_percent": 14.471424
    },
    "meta": {
        "timestamp": "2026-06-05T19:50:25.411Z",
        "request_id": "f5bf8db5-674d-4565-9f1a-26f4344616ba"
    },
    "status": "ok",
    "message": "Annualize a return",
    "success": true
}