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GET /v1/code

Unit by UN/ECE common code

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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/unitcodes-api

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Code snippets

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

Example response

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

{
    "data": {
        "unit": {
            "code": "KGM",
            "name": "kilogram",
            "active": true,
            "status": "active",
            "symbol": "kg",
            "description": "A unit of mass equal to one thousand grams."
        }
    },
    "meta": {
        "timestamp": "2026-06-08T18:25:03.411Z",
        "request_id": "aa150d53-cc2b-4219-a5f0-83cda7eba7c9"
    },
    "status": "ok",
    "message": "Unit code retrieved successfully",
    "success": true
}