> ## 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. # Body Swap > Swap a person into a scene image using Nano Banana 2. Credits depend on `resolution` (from 100 credits at 640px upward). ## OpenAPI ````yaml post /v1/body-swap 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://magichour.ai/docs/webhook). 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/settings/developer). 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: Files description: API related to uploading assets used for video generation - name: Image Projects description: API related to image projects - name: Video Projects description: API related to video projects - name: Audio Projects description: API related to audio projects paths: /v1/body-swap: post: tags: - Image Projects summary: Body Swap description: >- Swap a person into a scene image using Nano Banana 2. Credits depend on `resolution` (from 100 credits at 640px upward). operationId: bodySwap.createImage parameters: [] requestBody: required: true description: Body content: application/json: schema: type: object properties: name: type: string description: Give your image a custom name for easy identification. example: My Body Swap image default: Body Swap - dateTime resolution: type: string enum: - 640px - 1k - 2k - 4k description: Output resolution. Determines credits charged for the run. example: 1k assets: type: object properties: person_file_path: type: string minLength: 1 description: > Image of the person to place into the scene. 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.png scene_file_path: type: string minLength: 1 description: > Target scene image (background). 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/5678.png required: - person_file_path - scene_file_path description: Person image and scene image for body swap required: - resolution - assets responses: '200': description: Success content: application/json: schema: type: object properties: id: type: string example: cuid-example description: >- Unique ID of the image. Use it with the [Get image Project API](https://docs.magichour.ai/api-reference/image-projects/get-image-details) to fetch status and downloads. credits_charged: type: integer description: >- The amount of credits deducted from your account to generate the image. We charge credits right when the request is made. If an error occurred while generating the image(s), credits will be refunded and this field will be updated to include the refund. example: 100 required: - id - frame_cost - credits_charged description: Success '400': description: Invalid Request content: application/json: schema: type: object properties: message: type: string required: - message description: The request is invalid example: message: Missing request body '401': description: Unauthorized content: application/json: schema: type: object properties: message: type: string enum: - Unauthorized required: - message description: The request is not properly authenticated example: message: Unauthorized '402': description: Payment Required content: application/json: schema: type: object properties: message: type: string required: - message description: The request requires payment example: message: Payment required '404': description: Not Found content: application/json: schema: type: object properties: message: type: string enum: - Not Found required: - message description: Requested resource is not found example: message: Not Found '422': description: Unprocessable Entity content: application/json: schema: type: object properties: message: type: string example: Unable to create image required: - message description: Unprocessable Entity security: - bearerAuth: [] x-codeSamples: - lang: python source: |- from magic_hour import Client from os import getenv client = Client(token=getenv("API_TOKEN")) res = client.v1.body_swap.generate( assets={ "person_file_path": "/path/to/person.png", "scene_file_path": "/path/to/scene.png", }, resolution="1k", name="My Body Swap image", wait_for_completion=True, download_outputs=True, download_directory=".", ) - lang: javascript source: |- import { Client } from "magic-hour"; const client = new Client({ token: process.env["API_TOKEN"]!! }); const res = await client.v1.bodySwap.generate( { assets: { personFilePath: "/path/to/person.png", sceneFilePath: "/path/to/scene.png", }, name: "My Body Swap image", resolution: "1k", }, { waitForCompletion: true, downloadOutputs: true, downloadDirectory: ".", }, ); - 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\tbody_swap \"github.com/magichourhq/magic-hour-go/resources/v1/body_swap\"\n\ttypes \"github.com/magichourhq/magic-hour-go/types\"\n)\n\nfunc main() {\n\tclient := sdk.NewClient(\n\t\tsdk.WithBearerAuth(os.Getenv(\"API_TOKEN\")),\n\t)\n\tres, err := client.V1.BodySwap.Create(body_swap.CreateRequest{\n\t\tAssets: types.V1BodySwapCreateBodyAssets{\n\t\t\tPersonFilePath: \"api-assets/id/1234.png\",\n\t\t\tSceneFilePath: \"api-assets/id/5678.png\",\n\t\t},\n\t\tName: nullable.NewValue(\"My Body Swap image\"),\n\t\tResolution: types.V1BodySwapCreateBodyResolutionEnum1k,\n\t})\n}" - lang: rust source: |- let client = magic_hour::Client::default() .with_bearer_auth(&std::env::var("API_TOKEN").unwrap()); let res = client .v1() .body_swap() .create(magic_hour::resources::v1::body_swap::CreateRequest { assets: magic_hour::models::V1BodySwapCreateBodyAssets { person_file_path: "api-assets/id/1234.png".to_string(), scene_file_path: "api-assets/id/5678.png".to_string(), }, name: Some("My Body Swap image".to_string()), resolution: magic_hour::models::V1BodySwapCreateBodyResolutionEnum::Enum1k, }) .await; - lang: curl source: |- curl --request POST \ --url https://api.magichour.ai/v1/body-swap \ --header 'accept: application/json' \ --header 'authorization: Bearer ' \ --header 'content-type: application/json' \ --data ' { "name": "My Body Swap image", "resolution": "1k", "assets": { "person_file_path": "api-assets/id/1234.png", "scene_file_path": "api-assets/id/5678.png" } } ' - lang: php source: |- "https://api.magichour.ai/v1/body-swap", 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 Body Swap image', 'resolution' => '1k', 'assets' => [ 'person_file_path' => 'api-assets/id/1234.png', 'scene_file_path' => 'api-assets/id/5678.png' ] ]), CURLOPT_HTTPHEADER => [ "accept: application/json", "authorization: Bearer ", "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 response = Unirest.post("https://api.magichour.ai/v1/body-swap") .header("accept", "application/json") .header("content-type", "application/json") .header("authorization", "Bearer ") .body("{\"name\":\"My Body Swap image\",\"resolution\":\"1k\",\"assets\":{\"person_file_path\":\"api-assets/id/1234.png\",\"scene_file_path\":\"api-assets/id/5678.png\"}}") .asString(); components: securitySchemes: bearerAuth: type: http scheme: bearer description: >- Bearer authentication header of the form `Bearer `, where `` is your API key. To get your API key, go to [Developer Hub](https://magichour.ai/developer?tab=api-keys) and click "Create new API Key". ````