Boulder grade conversion

Code snippets

curl "https://api.oanor.com/climbgrade-api/v1/boulder" \
  -H "x-oanor-key: oanor_test_..."

await fetch("https://api.oanor.com/climbgrade-api/v1/boulder", {
  headers: { "x-oanor-key": "oanor_test_..." }
});

$ch = curl_init("https://api.oanor.com/climbgrade-api/v1/boulder");
curl_setopt($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/climbgrade-api/v1/boulder",
    headers={"x-oanor-key": "oanor_test_..."}
)

Example response

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

{
    "data": {
        "note": "Bouldering grade between the American V-scale (Hueco) and the French Fontainebleau scale. Font grades use letters (A/B/C) and '+'; the V-scale is roughly Font minus the 'V' offset above 6A.",
        "inputs": {
            "grade": "V5"
        },
        "discipline": "boulder",
        "conversions": {
            "font": "6C",
            "vscale": "V5"
        }
    },
    "meta": {
        "timestamp": "2026-06-06T07:14:01.944Z",
        "request_id": "ae08a521-4c93-4777-8c07-c7213e614502"
    },
    "status": "ok",
    "message": "Boulder grade",
    "success": true
}