> ## Documentation Index > Fetch the complete documentation index at: https://docs.dify.ai/llms.txt > Use this file to discover all available pages before exploring further. # Get App Parameters > Retrieve the application's input form configuration, including feature switches, input parameter names, types, and default values. ## OpenAPI ````yaml /en/api-reference/openapi_completion.json get /parameters openapi: 3.0.1 info: title: Completion App API description: >- The text generation application offers non-session support and is ideal for translation, article writing, summarization AI, and more. version: 1.0.0 servers: - url: '{api_base_url}' description: >- The base URL for the Completion App API. Replace {api_base_url} with the actual API base URL provided for your application. variables: api_base_url: default: https://api.dify.ai/v1 description: Actual base URL of the API security: - ApiKeyAuth: [] tags: - name: Completions description: Operations related to text generation and completion. - name: Files description: Operations related to file management. - name: End Users description: Operations related to end user information. - name: Feedback description: Operations related to user feedback. - name: TTS description: Operations related to Text-to-Speech and Speech-to-Text. - name: Applications description: Operations to retrieve application settings and information. paths: /parameters: get: tags: - Applications summary: Get App Parameters description: >- Retrieve the application's input form configuration, including feature switches, input parameter names, types, and default values. operationId: getAppParameters responses: '200': description: Application parameters information. content: application/json: schema: $ref: '#/components/schemas/CompletionAppParametersResponse' examples: appParameters: summary: Response Example value: opening_statement: Hello! How can I help you today? suggested_questions: - What can you do? - Tell me about your features. suggested_questions_after_answer: enabled: true speech_to_text: enabled: false text_to_speech: enabled: false voice: alloy language: en-US autoPlay: disabled retriever_resource: enabled: true annotation_reply: enabled: false more_like_this: enabled: false sensitive_word_avoidance: enabled: false user_input_form: - text-input: label: City variable: city required: true default: '' file_upload: image: enabled: true number_limits: 3 detail: high transfer_methods: - remote_url - local_file system_parameters: file_size_limit: 15 image_file_size_limit: 10 audio_file_size_limit: 50 video_file_size_limit: 100 workflow_file_upload_limit: 10 '400': description: '`app_unavailable` : App unavailable or misconfigured.' content: application/json: examples: app_unavailable: summary: app_unavailable value: status: 400 code: app_unavailable message: App unavailable, please check your app configurations. components: schemas: CompletionAppParametersResponse: type: object properties: opening_statement: type: string description: Opening statement displayed at start. suggested_questions: type: array items: type: string description: List of suggested starter questions. suggested_questions_after_answer: type: object description: Configuration for suggested questions after answer. properties: enabled: type: boolean description: Whether this feature is enabled. speech_to_text: type: object description: Speech-to-text configuration. properties: enabled: type: boolean description: Whether this feature is enabled. text_to_speech: type: object description: Text-to-speech configuration. properties: enabled: type: boolean description: Whether this feature is enabled. voice: type: string description: Voice identifier for TTS. language: type: string description: Language for TTS. autoPlay: type: string enum: - enabled - disabled description: Auto-play setting. retriever_resource: type: object description: Retriever resource configuration. properties: enabled: type: boolean description: Whether this feature is enabled. annotation_reply: type: object description: Annotation reply configuration. properties: enabled: type: boolean description: Whether this feature is enabled. more_like_this: type: object description: More-like-this configuration. properties: enabled: type: boolean description: Whether this feature is enabled. sensitive_word_avoidance: type: object description: Sensitive word avoidance configuration. properties: enabled: type: boolean description: Whether this feature is enabled. user_input_form: type: array description: List of user input form elements. items: $ref: '#/components/schemas/UserInputFormItem' file_upload: type: object description: File upload configuration. properties: image: type: object description: Image upload settings. properties: enabled: type: boolean description: Whether image upload is enabled. number_limits: type: integer description: Maximum number of images. detail: type: string description: Image detail level. transfer_methods: type: array items: type: string enum: - remote_url - local_file description: Allowed transfer methods. system_parameters: type: object description: System-level parameters and limits. properties: file_size_limit: type: integer description: Maximum file size in MB. image_file_size_limit: type: integer description: Maximum image file size in MB. audio_file_size_limit: type: integer description: Maximum audio file size in MB. video_file_size_limit: type: integer description: Maximum video file size in MB. workflow_file_upload_limit: type: integer description: Maximum number of files for workflow file upload. UserInputFormItem: type: object oneOf: - $ref: '#/components/schemas/TextInputControlWrapper' - $ref: '#/components/schemas/ParagraphControlWrapper' - $ref: '#/components/schemas/SelectControlWrapper' TextInputControlWrapper: title: Text Input type: object properties: text-input: $ref: '#/components/schemas/TextInputControl' ParagraphControlWrapper: title: Paragraph type: object properties: paragraph: $ref: '#/components/schemas/ParagraphControl' SelectControlWrapper: title: Select type: object properties: select: $ref: '#/components/schemas/SelectControl' TextInputControl: type: object properties: label: type: string description: Display label for the form field. variable: type: string description: Variable name used as the key in the `inputs` object. required: type: boolean description: Whether this field must be filled before submission. default: type: string description: Default value pre-filled in the form field. ParagraphControl: type: object properties: label: type: string description: Display label for the form field. variable: type: string description: Variable name used as the key in the `inputs` object. required: type: boolean description: Whether this field must be filled before submission. default: type: string description: Default value pre-filled in the form field. SelectControl: type: object properties: label: type: string description: Display label for the form field. variable: type: string description: Variable name used as the key in the `inputs` object. required: type: boolean description: Whether a selection must be made before submission. default: type: string description: Default selected value. options: type: array items: type: string description: List of selectable values for this form control. securitySchemes: ApiKeyAuth: type: http scheme: bearer bearerFormat: API_KEY description: >- API Key authentication. For all API requests, include your API Key in the `Authorization` HTTP Header, prefixed with `Bearer `. Example: `Authorization: Bearer {API_KEY}`. **Strongly recommend storing your API Key on the server-side, not shared or stored on the client-side, to avoid possible API-Key leakage that can lead to serious consequences.** ````