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GET /v1/symbol

Codes for a unit symbol

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

Example response

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

{
    "data": {
        "count": 1,
        "units": [
            {
                "code": "KGM",
                "name": "kilogram",
                "active": true,
                "status": "active",
                "symbol": "kg",
                "description": "A unit of mass equal to one thousand grams."
            }
        ],
        "symbol": "kg"
    },
    "meta": {
        "timestamp": "2026-06-08T18:25:03.542Z",
        "request_id": "728b4d0a-5b37-4b10-9a53-eeef9f48345c"
    },
    "status": "ok",
    "message": "Symbol lookup retrieved successfully",
    "success": true
}