Audio

Mesh API supports audio through POST /v1/chat/completions.

Use this page for:

• audio input with input_audio
• audio output with modalities and audio

Audio input

Send audio as a content part inside a chat message.

$
curl https://api.meshapi.ai/v1/chat/completions \
>
  -H "Authorization: Bearer <YOUR_RSK_KEY>" \
>
  -H "Content-Type: application/json" \
>
  -d '{
>
    "model": "google/gemini-3-flash-preview",
>
    "messages": [
>
      {
>
        "role": "user",
>
        "content": [
>
          { "type": "text", "text": "Transcribe this clip." },
>
          {
>
            "type": "input_audio",
>
            "input_audio": {
>
              "data": "<BASE64_AUDIO>",
>
              "format": "wav"
>
            }
>
          }
>
        ]
>
      }
>
    ]
>
  }'

Audio output

Request text and audio together when the model supports audio output.

$
curl https://api.meshapi.ai/v1/chat/completions \
>
  -H "Authorization: Bearer <YOUR_RSK_KEY>" \
>
  -H "Content-Type: application/json" \
>
  -d '{
>
    "model": "openai/gpt-4o-audio-preview",
>
    "messages": [
>
      { "role": "user", "content": "Read this back to me in a calm voice." }
>
    ],
>
    "modalities": ["text", "audio"],
>
    "audio": {
>
      "voice": "alloy",
>
      "format": "wav"
>
    }
>
  }'

The same request shape is available through all four SDKs by setting chat-completions fields for modalities and audio.

SDK coverage

• Node: client.chat.completions.create(...)
• Python: client.chat.completions.create(...)
• Go: client.Chat.Completions.Create(...)
• Java: client.chat().completions().create(...)

Notes

• Audio payloads are base64 encoded in the request body.
• Check GET /v1/models to find models that accept or produce audio.
• Keep payload sizes reasonable, especially for browser-based clients.