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GET /v1/syllables

Syllable count

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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/readability-api

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Code snippets

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

Example response

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

{
    "data": {
        "words": [
            {
                "word": "readability",
                "syllables": 5
            },
            {
                "word": "scoring",
                "syllables": 2
            }
        ],
        "word_count": 2,
        "total_syllables": 7
    },
    "meta": {
        "timestamp": "2026-06-01T23:40:49.703Z",
        "request_id": "106e4e3b-2e55-4739-94a4-97112867643f"
    },
    "status": "ok",
    "message": "Syllables counted",
    "success": true
}