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

# AI Video Translator

> **What this API does**

Create the same Video Translator you can make in the browser, but programmatically, so you can automate it, run it at scale, or connect it to your own app or workflow.
    
**Good for**
- Automation and batch processing  
- Adding video translator into apps, pipelines, or tools  

**How it works (3 steps)**
1) Upload your inputs (video, image, or audio) with [Generate Upload URLs](https://docs.magichour.ai/api-reference/files/generate-asset-upload-urls) and copy the `file_path`.  
2) Send a request to create a video translator job with the basic fields.  
3) Check the job status until it's `complete`, then download the result from `downloads`.

**Key options**
- Inputs: usually a file, sometimes a YouTube link, depending on project type  
- Resolution: free users are limited to 576px; higher plans unlock HD and larger sizes  
- Extra fields: e.g. `face_swap_mode`, `start_seconds`/`end_seconds`, or a text prompt  

**Cost**  
Credits are only charged for the frames that actually render. You'll see an estimate when the job is queued, and the final total after it's done.

For detailed examples, see the [product page](https://magichour.ai/products/ai-video-translator).



## OpenAPI

````yaml /api-reference/openapi.json post /v1/ai-video-translator
openapi: 3.0.2
info:
  title: Magic Hour API
  version: beta
  description: >

    Magic Hour provides an API (beta) that can be integrated into your own
    application to generate videos and images using AI. 


    Webhook documentation can be found
    [here](https://docs.magichour.ai/webhook-reference).


    If you have any questions, please reach out to us via
    [discord](https://discord.gg/JX5rgsZaJp).


    # Authentication


    Every request requires an API key.


    To get started, first generate your API key
    [here](https://magichour.ai/developer?tab=api-keys&utm_source=docs&utm_medium=referral&utm_campaign=api-reference).


    Then, add the `Authorization` header to the request.


    | Key | Value |

    |-|-|

    | Authorization | Bearer mhk_live_apikey |


    > **Warning**: any API call that renders a video will utilize credits in
    your account.
  termsOfService: https://magichour.ai/terms-of-service
servers:
  - url: https://api.magichour.ai
security: []
tags:
  - name: Video Projects
    description: API related to video projects
  - name: Image Projects
    description: API related to image projects
  - name: Audio Projects
    description: API related to audio projects
  - name: Files
    description: API related to uploading and reusing assets
  - name: Account
    description: API related to the account that owns the API key
paths:
  /v1/ai-video-translator:
    post:
      tags:
        - Video Projects
      summary: AI Video Translator
      description: >-
        **What this API does**


        Create the same Video Translator you can make in the browser, but
        programmatically, so you can automate it, run it at scale, or connect it
        to your own app or workflow.
            
        **Good for**

        - Automation and batch processing  

        - Adding video translator into apps, pipelines, or tools  


        **How it works (3 steps)**

        1) Upload your inputs (video, image, or audio) with [Generate Upload
        URLs](https://docs.magichour.ai/api-reference/files/generate-asset-upload-urls)
        and copy the `file_path`.  

        2) Send a request to create a video translator job with the basic
        fields.  

        3) Check the job status until it's `complete`, then download the result
        from `downloads`.


        **Key options**

        - Inputs: usually a file, sometimes a YouTube link, depending on project
        type  

        - Resolution: free users are limited to 576px; higher plans unlock HD
        and larger sizes  

        - Extra fields: e.g. `face_swap_mode`, `start_seconds`/`end_seconds`, or
        a text prompt  


        **Cost**  

        Credits are only charged for the frames that actually render. You'll see
        an estimate when the job is queued, and the final total after it's done.


        For detailed examples, see the [product
        page](https://magichour.ai/products/ai-video-translator).
      operationId: aiVideoTranslator.createVideo
      parameters: []
      requestBody:
        required: true
        description: Body
        content:
          application/json:
            schema:
              type: object
              properties:
                name:
                  type: string
                  description: Give your video a custom name for easy identification.
                  example: My Video Translator video
                  default: Video Translator - dateTime
                start_seconds:
                  default: 0
                  type: number
                  minimum: 0
                  description: Start time of your clip (seconds). Must be ≥ 0.
                  format: float
                  example: 0
                end_seconds:
                  type: number
                  minimum: 0.1
                  description: >-
                    End time of your clip (seconds). Must be greater than
                    start_seconds. The clip must be 1-30 seconds long.
                  format: float
                  example: 15
                target_language:
                  type: string
                  enum:
                    - English
                    - Chinese (Simplified)
                    - Hindi
                    - Spanish
                    - Arabic
                    - French
                    - Afrikaans
                    - Bengali
                    - Bulgarian
                    - Catalan
                    - Croatian
                    - Czech
                    - Danish
                    - Dutch
                    - Estonian
                    - Finnish
                    - German
                    - Greek
                    - Gujarati
                    - Hebrew
                    - Hungarian
                    - Indonesian
                    - Italian
                    - Japanese
                    - Kannada
                    - Kazakh
                    - Korean
                    - Latvian
                    - Lithuanian
                    - Malay
                    - Malayalam
                    - Marathi
                    - Norwegian
                    - Persian
                    - Polish
                    - Portuguese
                    - Punjabi
                    - Romanian
                    - Russian
                    - Serbian
                    - Slovak
                    - Slovenian
                    - Swahili
                    - Swedish
                    - Tamil
                    - Telugu
                    - Thai
                    - Chinese (Traditional)
                    - Turkish
                    - Ukrainian
                    - Urdu
                    - Vietnamese
                    - Welsh
                  description: Language to translate the video's speech into.
                  example: Spanish
                resolution:
                  type: string
                  enum:
                    - 480p
                    - 720p
                    - 1080p
                  description: >-
                    Output video resolution. Defaults to 480p. 720p and 1080p
                    require a paid plan.
                  example: 720p
                assets:
                  type: object
                  properties:
                    video_file_path:
                      type: string
                      minLength: 1
                      description: >
                        Source video containing the speech to translate. This
                        value is either

                        - a direct URL to the video file

                        - `file_path` field from the response of the [upload
                        urls
                        API](https://docs.magichour.ai/api-reference/files/generate-asset-upload-urls).


                        See the [file upload
                        guide](https://docs.magichour.ai/api-reference/files/generate-asset-upload-urls#input-file)
                        for details.
                      example: api-assets/id/1234.mp4
                  required:
                    - video_file_path
                  description: Source video for the translation job.
              required:
                - end_seconds
                - target_language
                - assets
      responses:
        '200':
          description: Success
          content:
            application/json:
              schema:
                type: object
                properties:
                  id:
                    type: string
                    example: cuid-example
                    description: >-
                      Unique ID of the video. Use it with the [Get video Project
                      API](https://docs.magichour.ai/api-reference/video-projects/get-video-details)
                      to fetch status and downloads.
                  credits_charged:
                    type: integer
                    description: >-
                      The amount of credits deducted from your account to
                      generate the video. If the status is not 'complete', this
                      value is an estimate and may be adjusted upon completion
                      based on the actual FPS of the output video. 


                      If video generation fails, credits will be refunded, and
                      this field will be updated to include the refund.
                    example: 450
                required:
                  - id
                  - credits_charged
                description: Success
        '400':
          description: Invalid Request
          content:
            application/json:
              schema:
                type: object
                required:
                  - code
                  - message
                properties:
                  code:
                    type: string
                    enum:
                      - invalid_request
                    description: >-
                      Machine-readable error code.


                      - `invalid_request`: Fix request syntax or validation
                      errors before retrying.
                  message:
                    type: string
                    description: Human-readable error message.
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                type: object
                required:
                  - code
                  - message
                properties:
                  code:
                    type: string
                    enum:
                      - unauthorized
                    description: |-
                      Machine-readable error code.

                      - `unauthorized`: Provide a valid API key before retrying.
                  message:
                    type: string
                    description: Human-readable error message.
        '402':
          description: Payment Required
          content:
            application/json:
              schema:
                type: object
                required:
                  - code
                  - message
                properties:
                  code:
                    type: string
                    enum:
                      - insufficient_credits
                      - subscription_required
                      - plan_upgrade_required
                    description: >-
                      Machine-readable error code.


                      - `insufficient_credits`: Purchase credits before
                      retrying.


                      - `subscription_required`: Start a subscription before
                      retrying.


                      - `plan_upgrade_required`: Upgrade the subscription plan
                      before retrying.
                  message:
                    type: string
                    description: Human-readable error message.
        '404':
          description: Not Found
          content:
            application/json:
              schema:
                type: object
                required:
                  - code
                  - message
                properties:
                  code:
                    type: string
                    enum:
                      - not_found
                    description: |-
                      Machine-readable error code.

                      - `not_found`: Check the route or resource identifier.
                  message:
                    type: string
                    description: Human-readable error message.
        '422':
          description: Unprocessable Entity
          content:
            application/json:
              schema:
                type: object
                required:
                  - code
                  - message
                properties:
                  code:
                    type: string
                    enum:
                      - unprocessable_entity
                    description: >-
                      Machine-readable error code.


                      - `unprocessable_entity`: Change the request values before
                      retrying.
                  message:
                    type: string
                    description: Human-readable error message.
        '500':
          description: Internal Server Error
          content:
            application/json:
              schema:
                type: object
                required:
                  - code
                  - message
                properties:
                  code:
                    type: string
                    enum:
                      - internal_server_error
                    description: >-
                      Machine-readable error code.


                      - `internal_server_error`: Retry later or contact support
                      if the error continues.
                  message:
                    type: string
                    description: Human-readable error message.
      security:
        - bearerAuth: []
      x-codeSamples:
        - lang: python
          source: |-
            from magic_hour import Client

            client = Client(token="YOUR_API_TOKEN")
            res = client.v1.ai_video_translator.generate(
                assets={"video_file_path": "/path/to/video.mp4"},
                end_seconds=15.0,
                target_language="Spanish",
                start_seconds=0.0,
            )
        - lang: javascript
          source: >-
            import { Client } from "magic-hour";


            const client = new Client({ token:
            process.env["MAGIC_HOUR_API_KEY"]!! });

            const res = await client.v1.aiVideoTranslator.generate({
              assets: { videoFilePath: "/path/to/video.mp4" },
              endSeconds: 15.0,
              targetLanguage: "Spanish",
              startSeconds: 0.0,
            });
        - lang: go
          source: "package main\n\nimport (\n\tos \"os\"\n\n\tsdk \"github.com/magichourhq/magic-hour-go/client\"\n\tnullable \"github.com/magichourhq/magic-hour-go/nullable\"\n\tai_video_translator \"github.com/magichourhq/magic-hour-go/resources/v1/ai_video_translator\"\n\ttypes \"github.com/magichourhq/magic-hour-go/types\"\n)\n\nfunc main() {\n\tclient := sdk.NewClient(\n\t\tsdk.WithBearerAuth(os.Getenv(\"MAGIC_HOUR_API_KEY\")),\n\t)\n\tres, err := client.V1.AiVideoTranslator.Create(ai_video_translator.CreateRequest{\n\t\tAssets: types.V1AiVideoTranslatorCreateBodyAssets{\n\t\t\tVideoFilePath: \"api-assets/id/1234.mp4\",\n\t\t},\n\t\tEndSeconds:     15.0,\n\t\tName:           nullable.NewValue(\"My Video Translator video\"),\n\t\tResolution:     nullable.NewValue(types.V1AiVideoTranslatorCreateBodyResolutionEnum720p),\n\t\tStartSeconds:   nullable.NewValue(0.0),\n\t\tTargetLanguage: types.V1AiVideoTranslatorCreateBodyTargetLanguageEnumSpanish,\n\t})\n}"
        - lang: rust
          source: |-
            let client = magic_hour::Client::default()
                .with_bearer_auth(&std::env::var("MAGIC_HOUR_API_KEY").unwrap());
            let res = client
                .v1()
                .ai_video_translator()
                .create(magic_hour::resources::v1::ai_video_translator::CreateRequest {
                    assets: magic_hour::models::V1AiVideoTranslatorCreateBodyAssets {
                        video_file_path: "api-assets/id/1234.mp4".to_string(),
                    },
                    end_seconds: 15.0,
                    name: Some("My Video Translator video".to_string()),
                    resolution: Some(
                        magic_hour::models::V1AiVideoTranslatorCreateBodyResolutionEnum::Enum720p,
                    ),
                    start_seconds: Some(0.0),
                    target_language: magic_hour::models::V1AiVideoTranslatorCreateBodyTargetLanguageEnum::Spanish,
                })
                .await;
        - lang: curl
          source: |-
            curl --request POST \
                 --url https://api.magichour.ai/v1/ai-video-translator \
                 --header 'accept: application/json' \
                 --header "authorization: Bearer $MAGIC_HOUR_API_KEY" \
                 --header 'content-type: application/json' \
                 --data '
            {
              "name": "My Video Translator video",
              "start_seconds": 0,
              "end_seconds": 15,
              "target_language": "Spanish",
              "resolution": "720p",
              "assets": {
                "video_file_path": "api-assets/id/1234.mp4"
              }
            }
            '
        - lang: php
          source: |-
            <?php

            $curl = curl_init();

            curl_setopt_array($curl, [
              CURLOPT_URL => "https://api.magichour.ai/v1/ai-video-translator",
              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([
                'name' => 'My Video Translator video',
                'start_seconds' => 0,
                'end_seconds' => 15,
                'target_language' => 'Spanish',
                'resolution' => '720p',
                'assets' => [
                    'video_file_path' => 'api-assets/id/1234.mp4'
                ]
              ]),
              CURLOPT_HTTPHEADER => [
                "accept: application/json",
                "authorization: Bearer <token>",
                "content-type: application/json"
              ],
            ]);

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

            curl_close($curl);

            if ($err) {
              echo "cURL Error #:" . $err;
            } else {
              echo $response;
            }
        - lang: java
          source: >-
            HttpResponse<String> response =
            Unirest.post("https://api.magichour.ai/v1/ai-video-translator")
              .header("accept", "application/json")
              .header("content-type", "application/json")
              .header("authorization", "Bearer <token>")
              .body("{\"name\":\"My Video Translator video\",\"start_seconds\":0,\"end_seconds\":15,\"target_language\":\"Spanish\",\"resolution\":\"720p\",\"assets\":{\"video_file_path\":\"api-assets/id/1234.mp4\"}}")
              .asString();
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: >-
        Bearer authentication header of the form `Bearer <api_key>`, where
        `<api_key>` is your API key. To get your API key, go to [Developer
        Hub](https://magichour.ai/developer?tab=api-keys&utm_source=docs&utm_medium=referral&utm_campaign=api-reference)
        and click "Create new API Key".

````

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