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

# Kling 3.0 Motion Control Video Generation

> - Asynchronous processing mode, returns task ID for subsequent queries
- Generate controllable video using one main reference image and one motion reference video
- Supports 720p / 1080p, allows setting character orientation source and background source, billed according to the real duration of the reference video


export const apiKeyUrl = 'https://aireiter.com/keys';

## Authorizations

<ParamField header="Authorization" type="string" required>
  All endpoints require authentication via Bearer Token

  To get the API Key:

  Visit the <a href={apiKeyUrl} target="_blank">API Key management page</a> to obtain your API Key

  Include in the request header:

  ```
  Authorization: Bearer YOUR_API_KEY
  ```
</ParamField>

## Body

<ParamField body="model" type="string" required>
  Model name:

  * `"kling_3_0_motion_control"` - Default
</ParamField>

<ParamField body="params" type="object" required>
  Model parameter object

  <Expandable title="params Object Properties">
    <ParamField body="prompt" type="string">
      Text description of the expected output effect

      * Optional
      * Maximum length: 2500 characters
      * Example: `No distortion, the character's movements are consistent with the video.`
    </ParamField>

    <ParamField body="image_url" type="string" required>
      Reference image URL for the subject

      * Required
      * Supports only a single image
      * Supported formats: JPG, JPEG, PNG
      * Maximum file size: 10MB
      * Image dimensions must be greater than 300px
      * Aspect ratio must be between 2:5 and 5:2
      * Characters, background, and other elements in the generated video will be based on this reference image
    </ParamField>

    <ParamField body="video_url" type="string" required>
      Reference video URL for the motion

      * Required
      * Supports only a single video
      * Supported formats: MP4, MOV / QuickTime
      * Maximum file size: 100MB
      * Video dimensions must be greater than 300px
      * Aspect ratio must be between 2:5 and 5:2
      * Duration: max 10 seconds when `character_orientation=image`, max 30 seconds when `character_orientation=video`
      * Estimated points and actual billing will be calculated based on the real duration of this video; no need to pass `video_length`
      * The character's motion in the generated video will match this reference video
    </ParamField>

    <ParamField body="resolution" type="string" default="720p">
      Output resolution mode

      * `720p` - Standard mode (default)
      * `1080p` - HD mode
    </ParamField>

    <ParamField body="character_orientation" type="string" default="video">
      Character orientation reference source

      * `video` - Match the character orientation in the reference video; video max 30 seconds (default)
      * `image` - Match the character orientation in the reference image; video max 10 seconds
    </ParamField>

    <ParamField body="background_source" type="string" default="input_video">
      Background reference source

      * `input_video` - Use action video background (default)
      * `input_image` - Use subject image background
    </ParamField>
  </Expandable>
</ParamField>

<ParamField body="out_task_id" type="string" required>
  Initiator's task ID

  User-defined task identifier, required
</ParamField>

## Response

<ResponseField name="out_task_id" type="string">
  The initiator's task ID, which can be used to query the result
</ResponseField>

<ResponseField name="status" type="string">
  Initial status, fixed as `"pending"`
</ResponseField>

<ResponseField name="estimated_credits" type="number">
  Estimated credits consumed
</ResponseField>

<ResponseField name="created_at" type="string">
  Creation time (ISO format)
</ResponseField>

<RequestExample>
  ```bash cURL theme={null}
  curl --request POST \
    --url https://aireiter.com/api/openapi/submit \
    --header 'Authorization: Bearer <token>' \
    --header 'Content-Type: application/json' \
    --data '{
      "model": "kling_3_0_motion_control",
      "params": {
        "prompt": "Let the character dance naturally along the reference video while keeping the subject identity consistent",
        "image_url": "https://example.com/subject.png",
        "video_url": "https://example.com/motion.mp4",
        "resolution": "720p",
        "character_orientation": "video",
        "background_source": "input_video"
      },
      "out_task_id": "my_task_123456"
    }'
  ```

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

  url = "https://aireiter.com/api/openapi/submit"

  payload = {
      "model": "kling_3_0_motion_control",
      "params": {
          "prompt": "Let the character dance naturally along the reference video while keeping the subject identity consistent",
          "image_url": "https://example.com/subject.png",
          "video_url": "https://example.com/motion.mp4",
          "resolution": "720p",
          "character_orientation": "video",
          "background_source": "input_video"
      },
      "out_task_id": "my_task_123456"
  }

  headers = {
      "Authorization": "Bearer <token>",
      "Content-Type": "application/json"
  }

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

  print(response.json())
  ```

  ```javascript JavaScript theme={null}
  const url = "https://aireiter.com/api/openapi/submit";

  const payload = {
    model: "kling_3_0_motion_control",
    params: {
      prompt: "Let the character dance naturally along the reference video while keeping the subject identity consistent",
      image_url: "https://example.com/subject.png",
      video_url: "https://example.com/motion.mp4",
      resolution: "720p",
      character_orientation: "video",
      background_source: "input_video"
    },
    out_task_id: "my_task_123456"
  };

  const headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
  };

  fetch(url, {
    method: "POST",
    headers: headers,
    body: JSON.stringify(payload)
  })
    .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://aireiter.com/api/openapi/submit"

      payload := map[string]interface{}{
          "model": "kling_3_0_motion_control",
          "params": map[string]interface{}{
              "prompt": "Let the character dance naturally along the reference video while keeping the subject identity consistent",
              "image_url": "https://example.com/subject.png",
              "video_url": "https://example.com/motion.mp4",
              "resolution": "720p",
              "character_orientation": "video",
              "background_source": "input_video",
          },
          "out_task_id": "my_task_123456",
      }

      jsonData, _ := json.Marshal(payload)

      req, _ := http.NewRequest("POST", url, bytes.NewBuffer(jsonData))
      req.Header.Set("Authorization", "Bearer <token>")
      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))
  }
  ```

  ```java Java theme={null}
  import java.net.http.HttpClient;
  import java.net.http.HttpRequest;
  import java.net.http.HttpResponse;
  import java.net.URI;

  public class Main {
      public static void main(String[] args) throws Exception {
          String url = "https://aireiter.com/api/openapi/submit";

          String payload = """
              {
                "model": "kling_3_0_motion_control",
                "params": {
                  "prompt": "Let the character dance naturally along the reference video while keeping the subject identity consistent",
                  "image_url": "https://example.com/subject.png",
                  "video_url": "https://example.com/motion.mp4",
                  "resolution": "720p",
                  "character_orientation": "video",
                  "background_source": "input_video"
                },
                "out_task_id": "my_task_123456"
              }
          """;

          HttpClient client = HttpClient.newHttpClient();
          HttpRequest request = HttpRequest.newBuilder()
              .uri(URI.create(url))
              .header("Authorization", "Bearer <token>")
              .header("Content-Type", "application/json")
              .POST(HttpRequest.BodyPublishers.ofString(payload))
              .build();

          HttpResponse<String> response = client.send(request,
              HttpResponse.BodyHandlers.ofString());

          System.out.println(response.body());
      }
  }
  ```

  ```php PHP theme={null}
  <?php

  $url = "https://aireiter.com/api/openapi/submit";

  $payload = [
      "model" => "kling_3_0_motion_control",
      "params" => [
          "prompt" => "Let the character dance naturally along the reference video while keeping the subject identity consistent",
          "image_url" => "https://example.com/subject.png",
          "video_url" => "https://example.com/motion.mp4",
          "resolution" => "720p",
          "character_orientation" => "video",
          "background_source" => "input_video"
      ],
      "out_task_id" => "my_task_123456"
  ];

  $ch = curl_init($url);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
  curl_setopt($ch, CURLOPT_POST, true);
  curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($payload));
  curl_setopt($ch, CURLOPT_HTTPHEADER, [
      "Authorization: Bearer <token>",
      "Content-Type: application/json"
  ]);

  $response = curl_exec($ch);
  curl_close($ch);

  echo $response;
  ?>
  ```

  ```ruby Ruby theme={null}
  require 'net/http'
  require 'json'
  require 'uri'

  url = URI("https://aireiter.com/api/openapi/submit")

  payload = {
    model: "kling_3_0_motion_control",
    params: {
      prompt: "Let the character dance naturally along the reference video while keeping the subject identity consistent",
      image_url: "https://example.com/subject.png",
      video_url: "https://example.com/motion.mp4",
      resolution: "720p",
      character_orientation: "video",
      background_source: "input_video"
    },
    out_task_id: "my_task_123456"
  }

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

  request = Net::HTTP::Post.new(url)
  request["Authorization"] = "Bearer <token>"
  request["Content-Type"] = "application/json"
  request.body = payload.to_json

  response = http.request(request)
  puts response.body
  ```

  ```swift Swift theme={null}
  import Foundation

  let url = URL(string: "https://aireiter.com/api/openapi/submit")!

  let payload: [String: Any] = [
      "model": "kling_3_0_motion_control",
      "params": [
          "prompt": "Let the character dance naturally along the reference video while keeping the subject identity consistent",
          "image_url": "https://example.com/subject.png",
          "video_url": "https://example.com/motion.mp4",
          "resolution": "720p",
          "character_orientation": "video",
          "background_source": "input_video"
      ],
      "out_task_id": "my_task_123456"
  ]

  var request = URLRequest(url: url)
  request.httpMethod = "POST"
  request.setValue("Bearer <token>", forHTTPHeaderField: "Authorization")
  request.setValue("application/json", forHTTPHeaderField: "Content-Type")
  request.httpBody = try? JSONSerialization.data(withJSONObject: payload)

  let task = URLSession.shared.dataTask(with: request) { data, response, error in
      if let error = error {
          print("Error: \(error)")
          return
      }

      if let data = data, let responseString = String(data: data, encoding: .utf8) {
          print(responseString)
      }
  }

  task.resume()
  ```

  ```csharp C# theme={null}
  using System;
  using System.Net.Http;
  using System.Text;
  using System.Threading.Tasks;

  class Program
  {
      static async Task Main(string[] args)
      {
          var url = "https://aireiter.com/api/openapi/submit";

          var payload = @"
                {
                    ""model"": ""kling_3_0_motion_control"",
                    ""params"": {
                        ""prompt"": ""Let the character dance naturally along the reference video while keeping the subject identity consistent"",
                        ""image_url"": ""https://example.com/subject.png"",
                        ""video_url"": ""https://example.com/motion.mp4"",
                        ""resolution"": ""720p"",
                        ""character_orientation"": ""video"",
                        ""background_source"": ""input_video""
                    },
                    ""out_task_id"": ""my_task_123456""
                }";

          using var client = new HttpClient();
          client.DefaultRequestHeaders.Add("Authorization", "Bearer <token>");

          var content = new StringContent(payload, Encoding.UTF8, "application/json");
          var response = await client.PostAsync(url, content);
          var result = await response.Content.ReadAsStringAsync();

          Console.WriteLine(result);
      }
  }
  ```

  ```c C theme={null}
  #include <stdio.h>
  #include <curl/curl.h>

  int main(void) {
      CURL *curl;
      CURLcode res;

      curl_global_init(CURL_GLOBAL_DEFAULT);
      curl = curl_easy_init();

      if(curl) {
          const char *url = "https://aireiter.com/api/openapi/submit";
          const char *payload = "{\"model\":\"kling_3_0_motion_control\",\"params\":{\"prompt\":\"Let the character dance naturally along the reference video while keeping the subject identity consistent\",\"image_url\":\"https://example.com/subject.png\",\"video_url\":\"https://example.com/motion.mp4\",\"resolution\":\"720p\",\"character_orientation\":\"video\",\"background_source\":\"input_video\"},\"out_task_id\":\"my_task_123456\"}";

          struct curl_slist *headers = NULL;
          headers = curl_slist_append(headers, "Authorization: Bearer <token>");
          headers = curl_slist_append(headers, "Content-Type: application/json");

          curl_easy_setopt(curl, CURLOPT_URL, url);
          curl_easy_setopt(curl, CURLOPT_POSTFIELDS, payload);
          curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);

          res = curl_easy_perform(curl);

          if(res != CURLE_OK) {
              fprintf(stderr, "curl_easy_perform() failed: %s\n",
                      curl_easy_strerror(res));
          }

          curl_slist_free_all(headers);
          curl_easy_cleanup(curl);
      }

      curl_global_cleanup();
      return 0;
  }
  ```

  ```objectivec Objective-C theme={null}
  #import <Foundation/Foundation.h>

  int main(int argc, const char * argv[]) {
      @autoreleasepool {
          NSURL *url = [NSURL URLWithString:@"https://aireiter.com/api/openapi/submit"];

          NSDictionary *payload = @{
              @"model": @"kling_3_0_motion_control",
              @"params": @{
                  @"prompt": @"Let the character dance naturally along the reference video while keeping the subject identity consistent",
                  @"image_url": @"https://example.com/subject.png",
                  @"video_url": @"https://example.com/motion.mp4",
                  @"resolution": @"720p",
                  @"character_orientation": @"video",
                  @"background_source": @"input_video"
              },
              @"out_task_id": @"my_task_123456"
          };

          NSError *error;
          NSData *jsonData = [NSJSONSerialization dataWithJSONObject:payload
                                                            options:0
                                                              error:&error];

          NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
          [request setHTTPMethod:@"POST"];
          [request setValue:@"Bearer <token>" forHTTPHeaderField:@"Authorization"];
          [request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
          [request setHTTPBody:jsonData];

          NSURLSessionDataTask *task = [[NSURLSession sharedSession]
              dataTaskWithRequest:request
              completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
                  if (error) {
                      NSLog(@"Error: %@", error);
                      return;
                  }
                  NSString *result = [[NSString alloc] initWithData:data
                                                          encoding:NSUTF8StringEncoding];
                  NSLog(@"%@", result);
              }];

          [task resume];
          [[NSRunLoop mainRunLoop] run];
      }
      return 0;
  }
  ```

  ```ocaml OCaml theme={null}
  (* Requires cohttp and yojson libraries *)
  open Lwt
  open Cohttp
  open Cohttp_lwt_unix

  let url = "https://aireiter.com/api/openapi/submit"

  let payload = {|{
    "model": "kling_3_0_motion_control",
    "params": {
      "prompt": "Let the character dance naturally along the reference video while keeping the subject identity consistent",
      "image_url": "https://example.com/subject.png",
      "video_url": "https://example.com/motion.mp4",
      "resolution": "720p",
      "character_orientation": "video",
      "background_source": "input_video"
    },
    "out_task_id": "my_task_123456"
  }|}

  let () =
    let headers = Header.init ()
      |> fun h -> Header.add h "Authorization" "Bearer <token>"
      |> fun h -> Header.add h "Content-Type" "application/json"
    in
    let body = Cohttp_lwt.Body.of_string payload in

    let response = Client.post ~headers ~body (Uri.of_string url) >>= fun (resp, body) ->
      body |> Cohttp_lwt.Body.to_string >|= fun body_str ->
      print_endline body_str
    in
    Lwt_main.run response
  ```

  ```dart Dart theme={null}
  import 'dart:convert';
  import 'package:http/http.dart' as http;

  void main() async {
    final url = Uri.parse('https://aireiter.com/api/openapi/submit');

    final payload = {
          "model": "kling_3_0_motion_control",
          "params": {
              "prompt": "Let the character dance naturally along the reference video while keeping the subject identity consistent",
              "image_url": "https://example.com/subject.png",
              "video_url": "https://example.com/motion.mp4",
              "resolution": "720p",
              "character_orientation": "video",
              "background_source": "input_video"
          },
          "out_task_id": "my_task_123456"
      };

    final response = await http.post(
      url,
      headers: {
        'Authorization': 'Bearer <token>',
        'Content-Type': 'application/json'
      },
      body: jsonEncode(payload),
    );

    print(response.body);
  }
  ```

  ```r R theme={null}
  library(httr)
  library(jsonlite)

  url <- "https://aireiter.com/api/openapi/submit"

  payload <- list(
    model = "kling_3_0_motion_control",
    params = list(
      prompt = "Let the character dance naturally along the reference video while keeping the subject identity consistent",
      image_url = "https://example.com/subject.png",
      video_url = "https://example.com/motion.mp4",
      resolution = "720p",
      character_orientation = "video",
      background_source = "input_video"
    ),
    out_task_id = "my_task_123456"
  )

  response <- POST(
    url,
    add_headers(
      Authorization = "Bearer <token>",
      `Content-Type` = "application/json"
    ),
    body = toJSON(payload, auto_unbox = TRUE),
    encode = "raw"
  )

  cat(content(response, "text"))
  ```
</RequestExample>

<ResponseExample>
  ```json 200 theme={null}
  {
    "statusCode": 200,
    "message": "",
    "data": {
        "out_task_id": "my_task_123456",
        "status": "pending",
        "estimated_credits": 100,
        "created_at": "2025-12-22T06:03:28.242Z"
    }
  }
  ```

  ```json 400 theme={null}
    {
        "statusCode": 400,
        "message": "Invalid request parameters",
        "ok": false
    }
  ```

  ```json 401 theme={null}
  {
    "error": {
      "code": 401,
      "message": "Authentication failed, please check your API key"
    }
  }
  ```

  ```json 433 theme={null}
    {
      "error": {
        "code": 433,
        "message": "Insufficient account balance, please top up and try again"
      }
    }
  ```

  ```json 500 theme={null}
  {
    "error": {
      "code": 500,
      "message": "Internal server error, please try again later"
    }
  }
  ```
</ResponseExample>