> ## Documentation Index
> Fetch the complete documentation index at: https://docs.gptproto.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Realman_change_lips - Audio To Video - gptproto

> Realman_change_lips — Audio To Video (gptproto). GPTProto API reference.

BytePlus's GPTProto format for the audio to video API.

<CodeGroup>
  ```bash cURL theme={null}
  curl --location 'https://gptproto.com/api/v3/bytedance/realman_change_lips/audio-to-video' \
    --header 'Authorization: YOUR_API_KEY' \
    --header 'Content-Type: application/json' \
    --data '{
      "url": "https://d1q70pf5vjeyhc.cloudfront.net/predictions/80ab53675b544f058826918526090b78/1.mp4",
      "pure_audio_url": "https://heyoo.oss-ap-southeast-1.aliyuncs.com/ai/api45003a21-b355-4214-877d-a83d2fd92858.mp3"
  }'
  ```

  ```python Python theme={null}
  import requests
  import json

  url = "https://gptproto.com/api/v3/bytedance/realman_change_lips/audio-to-video"
  headers = {
      "Authorization": "YOUR_API_KEY",
      "Content-Type": "application/json"
  }

  data = {
      "url": "https://d1q70pf5vjeyhc.cloudfront.net/predictions/80ab53675b544f058826918526090b78/1.mp4",
      "pure_audio_url": "https://heyoo.oss-ap-southeast-1.aliyuncs.com/ai/api45003a21-b355-4214-877d-a83d2fd92858.mp3"
  }

  response = requests.post(url, headers=headers, json=data)
  result = response.json()
  print(json.dumps(result, indent=2))
  ```

  ```javascript JavaScript theme={null}
  const url = "https://gptproto.com/api/v3/bytedance/realman_change_lips/audio-to-video";
  const headers = {
    "Authorization": "YOUR_API_KEY",
    "Content-Type": "application/json"
  };

  const data = {
      "url": "https://d1q70pf5vjeyhc.cloudfront.net/predictions/80ab53675b544f058826918526090b78/1.mp4",
      "pure_audio_url": "https://heyoo.oss-ap-southeast-1.aliyuncs.com/ai/api45003a21-b355-4214-877d-a83d2fd92858.mp3"
  };

  fetch(url, {
    method: "POST",
    headers: headers,
    body: JSON.stringify(data)
  })
    .then(response => response.json())
    .then(data => console.log(data))
    .catch(error => console.error("Error:", error));
  ```

  ```go Go theme={null}
  package main

  import (
      "bytes"
      "encoding/json"
      "fmt"
      "io/ioutil"
      "net/http"
  )

  func main() {
      url := "https://gptproto.com/api/v3/bytedance/realman_change_lips/audio-to-video"

      payload := []byte(`{
      "url": "https://d1q70pf5vjeyhc.cloudfront.net/predictions/80ab53675b544f058826918526090b78/1.mp4",
      "pure_audio_url": "https://heyoo.oss-ap-southeast-1.aliyuncs.com/ai/api45003a21-b355-4214-877d-a83d2fd92858.mp3"
  }`)

      req, _ := http.NewRequest("POST", url, bytes.NewBuffer(payload))
      req.Header.Set("Authorization", "YOUR_API_KEY")
      req.Header.Set("Content-Type", "application/json")

      client := &http.Client{}
      resp, err := client.Do(req)
      if err != nil {
          panic(err)
      }
      defer resp.Body.Close()

      body, _ := ioutil.ReadAll(resp.Body)
      fmt.Println(string(body))
  }
  ```
</CodeGroup>

<CodeGroup>
  ```json 401 - Invalid signature theme={null}
  {
    "error": {
      "message": "Invalid signature",
      "type": "401"
    }
  }
  ```

  ```json 403 - Insufficient balance theme={null}
  {
    "error": {
      "message": "Insufficient balance",
      "type": "403"
    }
  }
  ```

  ```json 500 - Internal server error theme={null}
  {
    "error": {
      "message": "Internal server error",
      "type": "500"
    }
  }
  ```

  ```json 503 - Content policy violation theme={null}
  {
    "error": {
      "message": "Input may not meet the guidelines. Please adjust and try again.",
      "type": "503"
    }
  }
  ```
</CodeGroup>

## Parameters

| Parameter        | Type   | Required | Default                                                                                        | Description                           |
| ---------------- | ------ | -------- | ---------------------------------------------------------------------------------------------- | ------------------------------------- |
| `url`            | string | ✅ Yes    | `https://d1q70pf5vjeyhc.cloudfront.net/predictions/80ab53675b544f058826918526090b78/1.mp4`     | The video URL to apply lip-sync to.   |
| `pure_audio_url` | string | ✅ Yes    | `https://heyoo.oss-ap-southeast-1.aliyuncs.com/ai/api45003a21-b355-4214-877d-a83d2fd92858.mp3` | The audio URL to sync with the video. |