curl -X POST "https://t.ato2.nodesms.com/v1/audio/transcriptions" \
  -H "Authorization: Bearer $API_KEY" \
  -F file="@audio.mp3" \
  -F model="whisper-1"

from openai import OpenAI

client = OpenAI(
    api_key="sk-xxxxxx",
    base_url="https://t.ato2.nodesms.com/v1"
)

audio_file = open("audio.mp3", "rb")
transcript = client.audio.transcriptions.create(
    model="whisper-1",
    file=audio_file
)
print(transcript.text)

{
  "text": "Hello, this is a test."
}

{
  "error": {
    "message": "string",
    "type": "invalid_request_error",
    "param": "file",
    "code": "string"
  }
}

{
  "error": {
    "message": "Rate limit exceeded",
    "type": "rate_limit_error",
    "param": null,
    "code": "rate_limit_exceeded"
  }
}