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GET /v1/band

EM spectrum band

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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/wavelength-api

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Code snippets

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

Example response

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

{
    "data": {
        "band": "visible",
        "note": "EM spectrum band by wavelength. Radio/microwave include the ITU sub-band (ELF…EHF); visible includes the approximate colour.",
        "input": [],
        "band_detail": "green light",
        "frequency_hz": 599585000000000,
        "wavelength_m": 5.0e-7
    },
    "meta": {
        "timestamp": "2026-06-04T01:59:16.653Z",
        "request_id": "8e226287-45eb-476f-ac31-540402692062"
    },
    "status": "ok",
    "message": "EM band classification",
    "success": true
}