curl --request POST \
  --url https://api.ttapi.io/sd/api/v3/contents/generations/tasks \
  --header 'Content-Type: application/json' \
  --header 'TT-API-KEY: <api-key>' \
  --data '
{
  "model": "doubao-seedance-2-5-260628",
  "content": [
    {
      "type": "text",
      "text": "继续向前延伸"
    },
    {
      "type": "video_url",
      "video_url": {
        "url": "https://example.com/input.mp4"
      },
      "role": "reference_video"
    }
  ],
  "omni_reference_task_type": "extend",
  "ratio": "adaptive",
  "duration": -1,
  "generate_audio": true,
  "output_format": "mov",
  "watermark": true
}
'

import requests

url = "https://api.ttapi.io/sd/api/v3/contents/generations/tasks"

payload = {
    "model": "doubao-seedance-2-5-260628",
    "content": [
        {
            "type": "text",
            "text": "继续向前延伸"
        },
        {
            "type": "video_url",
            "video_url": { "url": "https://example.com/input.mp4" },
            "role": "reference_video"
        }
    ],
    "omni_reference_task_type": "extend",
    "ratio": "adaptive",
    "duration": -1,
    "generate_audio": True,
    "output_format": "mov",
    "watermark": True
}
headers = {
    "TT-API-KEY": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'TT-API-KEY': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    model: 'doubao-seedance-2-5-260628',
    content: [
      {type: 'text', text: '继续向前延伸'},
      {
        type: 'video_url',
        video_url: {url: 'https://example.com/input.mp4'},
        role: 'reference_video'
      }
    ],
    omni_reference_task_type: 'extend',
    ratio: 'adaptive',
    duration: -1,
    generate_audio: true,
    output_format: 'mov',
    watermark: true
  })
};

fetch('https://api.ttapi.io/sd/api/v3/contents/generations/tasks', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.ttapi.io/sd/api/v3/contents/generations/tasks",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'model' => 'doubao-seedance-2-5-260628',
    'content' => [
        [
                'type' => 'text',
                'text' => '继续向前延伸'
        ],
        [
                'type' => 'video_url',
                'video_url' => [
                                'url' => 'https://example.com/input.mp4'
                ],
                'role' => 'reference_video'
        ]
    ],
    'omni_reference_task_type' => 'extend',
    'ratio' => 'adaptive',
    'duration' => -1,
    'generate_audio' => true,
    'output_format' => 'mov',
    'watermark' => true
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "TT-API-KEY: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.ttapi.io/sd/api/v3/contents/generations/tasks"

	payload := strings.NewReader("{\n  \"model\": \"doubao-seedance-2-5-260628\",\n  \"content\": [\n    {\n      \"type\": \"text\",\n      \"text\": \"继续向前延伸\"\n    },\n    {\n      \"type\": \"video_url\",\n      \"video_url\": {\n        \"url\": \"https://example.com/input.mp4\"\n      },\n      \"role\": \"reference_video\"\n    }\n  ],\n  \"omni_reference_task_type\": \"extend\",\n  \"ratio\": \"adaptive\",\n  \"duration\": -1,\n  \"generate_audio\": true,\n  \"output_format\": \"mov\",\n  \"watermark\": true\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("TT-API-KEY", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.ttapi.io/sd/api/v3/contents/generations/tasks")
  .header("TT-API-KEY", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"model\": \"doubao-seedance-2-5-260628\",\n  \"content\": [\n    {\n      \"type\": \"text\",\n      \"text\": \"继续向前延伸\"\n    },\n    {\n      \"type\": \"video_url\",\n      \"video_url\": {\n        \"url\": \"https://example.com/input.mp4\"\n      },\n      \"role\": \"reference_video\"\n    }\n  ],\n  \"omni_reference_task_type\": \"extend\",\n  \"ratio\": \"adaptive\",\n  \"duration\": -1,\n  \"generate_audio\": true,\n  \"output_format\": \"mov\",\n  \"watermark\": true\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.ttapi.io/sd/api/v3/contents/generations/tasks")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["TT-API-KEY"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"model\": \"doubao-seedance-2-5-260628\",\n  \"content\": [\n    {\n      \"type\": \"text\",\n      \"text\": \"继续向前延伸\"\n    },\n    {\n      \"type\": \"video_url\",\n      \"video_url\": {\n        \"url\": \"https://example.com/input.mp4\"\n      },\n      \"role\": \"reference_video\"\n    }\n  ],\n  \"omni_reference_task_type\": \"extend\",\n  \"ratio\": \"adaptive\",\n  \"duration\": -1,\n  \"generate_audio\": true,\n  \"output_format\": \"mov\",\n  \"watermark\": true\n}"

response = http.request(request)
puts response.read_body

{
  "id": "cgt-20261021120000-xxxxx"
}