> ## Documentation Index > Fetch the complete documentation index at: https://docs.base44.com/llms.txt > Use this file to discover all available pages before exploring further. # Remix an app > This API is in beta. Endpoints, fields, and behavior may still change, so avoid depending on it in production. Creates a copy of an app in your workspace and makes you its owner. The app must be in the workspace your personal access token is scoped to, and the remix is created there too, so you need an editor-capable role in it. You can remix an app you own, collaborate on as an editor, or administer as a workspace admin, an approved template, or an app its owner marked as remixable and didn't make private. Remixing a paid template requires that you bought it first. Call [Get remix requirements](/api-reference/get-remix-requirements) first to see which secrets the app needs. The remix is named after the app with ` (Copy)` appended. When the app is an approved template, the remix copies the approved version of the template, name included, rather than the app's current state, unless you set `with_chat_history`. The body takes only the fields below. Fields that [Create app](/api-reference/create-app) accepts, such as `name`, `user_description`, `public_settings`, `custom_instructions`, and `prevent_iframe_embedding`, are ignored here. The remix copies `user_description`, `public_settings`, and `custom_instructions` from the app and starts with `prevent_iframe_embedding` set to `true`. Rename the remix or change its description afterwards with [Update app](/api-reference/update-app). The API has no endpoint for changing the other settings yet. The response returns as soon as the new app exists. Setting up its files can continue in the background, so poll [Get app](/api-reference/get-app) until its `status.state` is no longer `processing`. A token limited to selected apps doesn't gain access to the new app, so use a token with access to all apps in the workspace if you need to reach the remix afterwards. This endpoint is limited to 10 requests per minute. The new app is created before `secret_values` are applied and before the code is copied. A request that fails at either step, for example on an invalid `secret_values` entry, still leaves the new app in your workspace, and it counts toward your plan's app limit. Delete it before you retry. The response includes fields beyond the ones documented here. Don't rely on undocumented response fields, as they can change at any time. Send only the fields documented here. Other request fields are not supported and their behavior can change. ## OpenAPI ````yaml /developers/references/app-management/app-management-openapi.json post /api/apps/{app_id}/remix openapi: 3.1.0 info: title: Base44 App Management API version: 1.0.0 servers: - url: https://app.base44.com security: - PersonalAccessTokenAuth: [] paths: /api/apps/{app_id}/remix: post: summary: Remix an app description: >- This API is in beta. Endpoints, fields, and behavior may still change, so avoid depending on it in production. Creates a copy of an app in your workspace and makes you its owner. The app must be in the workspace your personal access token is scoped to, and the remix is created there too, so you need an editor-capable role in it. You can remix an app you own, collaborate on as an editor, or administer as a workspace admin, an approved template, or an app its owner marked as remixable and didn't make private. Remixing a paid template requires that you bought it first. Call [Get remix requirements](/api-reference/get-remix-requirements) first to see which secrets the app needs. The remix is named after the app with ` (Copy)` appended. When the app is an approved template, the remix copies the approved version of the template, name included, rather than the app's current state, unless you set `with_chat_history`. The body takes only the fields below. Fields that [Create app](/api-reference/create-app) accepts, such as `name`, `user_description`, `public_settings`, `custom_instructions`, and `prevent_iframe_embedding`, are ignored here. The remix copies `user_description`, `public_settings`, and `custom_instructions` from the app and starts with `prevent_iframe_embedding` set to `true`. Rename the remix or change its description afterwards with [Update app](/api-reference/update-app). The API has no endpoint for changing the other settings yet. The response returns as soon as the new app exists. Setting up its files can continue in the background, so poll [Get app](/api-reference/get-app) until its `status.state` is no longer `processing`. A token limited to selected apps doesn't gain access to the new app, so use a token with access to all apps in the workspace if you need to reach the remix afterwards. This endpoint is limited to 10 requests per minute. The new app is created before `secret_values` are applied and before the code is copied. A request that fails at either step, for example on an invalid `secret_values` entry, still leaves the new app in your workspace, and it counts toward your plan's app limit. Delete it before you retry. The response includes fields beyond the ones documented here. Don't rely on undocumented response fields, as they can change at any time. Send only the fields documented here. Other request fields are not supported and their behavior can change. operationId: remix_app_api_api_apps__app_id__remix_post parameters: - name: app_id in: path required: true schema: type: string description: ID of the app to remix. title: App Id description: ID of the app to remix. example: 6820f3a4e7b91d003c45a1f2 - name: Accept-Language in: header required: false schema: anyOf: - type: string - type: 'null' description: >- Language to return generated text in, as a standard `Accept-Language` value. An unsupported language falls back to English. title: Accept-Language description: >- Language to return generated text in, as a standard `Accept-Language` value. An unsupported language falls back to English. example: de requestBody: required: true content: application/json: schema: type: object title: RemixApp properties: with_chat_history: type: boolean default: false description: >- Whether to copy the app's chat history too. The remix then copies the app's current state, even when the app is an approved template. Only the app's owner, its editor-level collaborators, and its workspace admins can set it. example: false secret_values: type: object description: >- Secrets to set on the remix, keyed by secret name. Set `type` to `value` to provide the secret's value. Set `type` to `clone` to copy the value of a secret on the source app, named by `value` or, when you omit `value`, by the key itself. You can clone a secret only from an app you own. Except for `user_agent` apps, you can't clone one when the remix copies an approved template version. additionalProperties: type: object required: - type properties: type: type: string enum: - value - clone description: >- `value` to set the secret to `value`, or `clone` to copy a secret from the source app. example: value value: type: string description: >- The secret's value when `type` is `value`. When `type` is `clone`, the name of the source app's secret to copy, which defaults to the key. example: sk_test_example example: STRIPE_API_KEY: type: value value: sk_test_example SENDGRID_API_KEY: type: clone example: secret_values: STRIPE_API_KEY: type: value value: sk_test_example responses: '200': description: The new app. content: application/json: schema: $ref: '#/components/schemas/AppSummary' '400': description: >- You can't remix the app, its type can't be remixed, you set `with_chat_history` without owning the app, collaborating on it as an editor, or administering its workspace, or a `secret_values` entry is malformed or clones a secret while the remix copies an approved template version of an app that isn't a `user_agent` app. '401': description: Missing or invalid credentials. '403': description: >- Your token is read-only, the app is a paid template you haven't bought, your role, plan, or account doesn't let you create another app of this type in the workspace, Superagent is disabled in the workspace for a `user_agent` app, or a `secret_values` entry clones a secret from an app you don't own. '404': description: >- The app doesn't exist, is outside the workspace or apps your token is scoped to, or a secret that a `secret_values` entry clones doesn't exist on it. '409': description: >- The app's connected GitHub repository can't be reached. Its owner has to reconnect GitHub. '422': description: Validation Error content: application/json: schema: $ref: '#/components/schemas/HTTPValidationError' '429': description: Rate limit exceeded (10 requests per minute). components: schemas: AppSummary: properties: id: anyOf: - type: string - type: 'null' title: Id description: ID of the app. example: 6820f3a4e7b91d003c45a1f2 first_prompt_model_comparison: anyOf: - $ref: '#/components/schemas/FirstPromptModelComparisonPublicState' - type: 'null' description: >- Accepted first-prompt model comparison, including its durable comparison ID. name: anyOf: - type: string - type: 'null' title: Name description: Display name of the app. example: My CRM slug: anyOf: - type: string - type: 'null' title: Slug description: >- URL slug for the app, auto generated from the name and app ID or set to a custom value, or `null` if the app has no slug yet. The published URL is built from it. example: my-crm-3c45a1f2 user_description: anyOf: - type: string - type: 'null' title: User Description description: >- Description of the app, or `null` if none was set. An app created without a `name` gets a generated description once a build turn changes it. example: A CRM to track leads and deals created_by: anyOf: - type: string - type: 'null' title: Created By description: Email of the user who created the app. example: developer@example.com created_date: anyOf: - type: string format: date-time - type: 'null' title: Created Date description: Time the app was created, as a UTC timestamp in ISO 8601 format. example: '2026-08-01T09:15:00' updated_date: anyOf: - type: string format: date-time - type: 'null' title: Updated Date description: >- Time the app document was last written, as a UTC timestamp in ISO 8601 format. example: '2026-08-02T14:30:00' status: anyOf: - $ref: '#/components/schemas/AppStatusResponse' - type: 'null' description: >- The app's current build status. Poll while a build is in progress to watch it finish. This tracks building, not publishing. last_deployed_at: anyOf: - type: string format: date-time - type: 'null' title: Last Deployed At description: >- Time the app was last published, as a UTC timestamp in ISO 8601 format, or `null` if it has never been published. example: '2026-08-02T14:30:00' screenshot_url: anyOf: - type: string - type: 'null' title: Screenshot Url description: >- URL of a screenshot of the published app. Captured shortly after each publish, so it can briefly lag or be `null` right after publishing. example: https://storage.base44.com/screenshots/6820f3a4e7b91d003c45a1f2.png preview_screenshot_url: anyOf: - type: string - type: 'null' title: Preview Screenshot Url description: >- URL of a preview screenshot taken before publishing, distinct from `screenshot_url`, or `null` if none has been captured. example: https://storage.base44.com/previews/6820f3a4e7b91d003c45a1f2.png type: object title: AppSummary description: An app in a workspace, limited to the properties the caller requested. HTTPValidationError: properties: detail: items: $ref: '#/components/schemas/ValidationError' type: array title: Detail type: object title: HTTPValidationError FirstPromptModelComparisonPublicState: properties: id: type: string title: Id client_creation_id: type: string title: Client Creation Id models: items: type: string type: array title: Models status: type: string enum: - preparing - running - failed - selected - cancelled title: Status type: object required: - id - client_creation_id - models - status title: FirstPromptModelComparisonPublicState AppStatusResponse: properties: state: type: string enum: - ready - processing - error title: State description: >- Where the app is in its build lifecycle. Ready means idle with no build in progress, processing means the app is being generated or modified, and error means the last build failed. This tracks building, not publishing. example: ready details: anyOf: - type: string - type: 'null' title: Details description: >- Human readable note about the current state, such as what is being processed or why it failed, or `null` when there is nothing to report. example: Publishing app request_id: anyOf: - type: string - type: 'null' title: Request Id description: >- ID of the request that last changed the status, or `null` if the status has never changed. Useful when reporting an issue. example: a1b2c3d4e5f67890abcdef12 last_updated_date: anyOf: - type: string format: date-time - type: 'null' title: Last Updated Date description: >- Time the status was last updated, as a UTC timestamp in ISO 8601 format. example: '2026-08-02T14:30:00Z' error_source: anyOf: - type: string - type: 'null' title: Error Source description: >- Where the failure originated when `state` is `error`, or `null` otherwise. A value of `paywall` means the work was blocked because the app's workspace has no credits left. example: build paywall_context: anyOf: - $ref: '#/components/schemas/PaywallStatusContextResponse' - type: 'null' description: >- Present when the operation was blocked by a plan limit, describing what was evaluated, or `null` otherwise. type: object required: - state title: AppStatusResponse description: The app's current build status. ValidationError: properties: loc: items: anyOf: - type: string - type: integer type: array title: Location msg: type: string title: Message type: type: string title: Error Type type: object required: - loc - msg - type title: ValidationError PaywallStatusContextResponse: properties: billing_organization_id: type: string title: Billing Organization Id description: ID of the billing organization the paywall was evaluated against. example: 67e0b12c4d8a3f005b21c9e4 user_id: type: string title: User Id description: ID of the user the paywall was evaluated for. example: 6706af53b9c1e2004a37d85f evaluated_at: type: string format: date-time title: Evaluated At description: >- Time the paywall condition was evaluated, as a UTC timestamp in ISO 8601 format. example: '2026-08-02T14:30:00Z' type: object required: - billing_organization_id - user_id - evaluated_at title: PaywallStatusContextResponse securitySchemes: PersonalAccessTokenAuth: type: http scheme: bearer description: 'Personal access token, sent as `Authorization: Bearer `.' ````