> ## Documentation Index > Fetch the complete documentation index at: https://docs.timeback.com/llms.txt > Use this file to discover all available pages before exploring further. # Get a stimulus with its complete content > Get a specific Stimulus by identifier from the service provider. Stimuli can be referenced by Assessment Items to display relevant content to the learner. ## OpenAPI ````yaml /openapi/beyond-ai/qti-api.yaml get /stimuli/{identifier} openapi: 3.1.0 info: title: QTI API version: 1.0.0 description: >- A robust assessment engine implementing the QTI 3.0 specification, designed for creating, managing, and delivering educational assessments. servers: - url: https://qti.alpha-1edtech.ai/api description: Main Server security: - OAuth2: [] - MCP: [] tags: - name: Validation description: >- Validate XML strings against QTI compliant XSD files. XSD version supported is 3.0.0 (3p0) - name: Feedback description: Feedback for questions and lessons - name: Assessment Test Management description: >- Enables the management of Assessment Tests. Assessment Tests are the main entities that contain Assessment Test Parts, Sections, and Assessment Items. - name: Test Part Management description: >- Enables the management of Test Parts. Assessment Test Parts are used to group sections inside of an Assessment Test. - name: Section Management description: >- Enables the management of Sections. Assessment Sections are used to group Assessment Items. - name: Assessment Item Management description: >- Enables the management of Assessment ITems. Assessment Items are made up of QTI Interactions (e.g. questions, multiple choice, etc.). - name: Stimulus Management description: >- Enables the management of Stimuli. Stimuli are shared content pieces (text, images, audio, video) that provide context for assessment items and can be referenced by multiple questions. paths: /stimuli/{identifier}: get: tags: - Stimulus Management summary: Get a stimulus with its complete content description: >- Get a specific Stimulus by identifier from the service provider. Stimuli can be referenced by Assessment Items to display relevant content to the learner. operationId: getStimulus parameters: - name: identifier description: Stimulus identifier in: path required: true schema: type: string responses: '200': description: Successfully retrieved stimulus content: application/json: schema: type: object properties: identifier: type: string description: Unique identifier for the entity on the service provider. title: type: string description: >- Human-readable title of the entity on the service provider. catalogInfo: type: array items: type: object properties: id: type: string description: >- Catalog entry identifier (must be valid XML NCName). The unique identifier used to locate the catalog from a data-catalog-idref. support: type: string description: >- This attribute names either pre-defined supports or a custom-named support. The named support will indicate for whom the dormant content is intended. Use only one card for any particular named support in a catalog content: type: string description: >- A data structure within a catalog which contains dormant HTML content or a resource reference for a specific support/feature. A card may also contain multiple CardEntry containers. For example, you might have multiple CardEntry nodes for different language versions of a particular support. required: - id - support - content description: Array of catalog cards. label: type: string description: >- A human readable label that can be used to describe the Stimulus. language: type: string description: The default language for the Stimulus. default: en stylesheet: type: object properties: href: type: string description: The identifier or location of the external stylesheet. type: type: string description: The type of the external stylesheet. required: - href - type description: >- The set of external style sheets that are associated with the Stimulus. The order of definition is significant. toolName: type: string description: >- The tool name characteristic allows the tool creating the stimulus to identify itself. Other processing systems may use this information to interpret the content of application specific data, such as labels on the elements of the stimulus's stimulus body. toolVersion: type: string description: >- The tool version characteristic allows the tool creating the item to identify its version. This value must only be interpreted in the context of the tool-name. metadata: type: object additionalProperties: {} description: >- Additional custom metadata for extending entity properties beyond standard specification for QTI entities. rawXml: type: string description: >- Raw XML representation of the entity, automatically generated from the JSON or XML sent when creating entities on the service provider. The rawxml field will contain all content sent when creating the entity on the service provider. This field is stable and should be used when working within this QTI API. content: type: object properties: qti-assessment-stimulus: type: object properties: _attributes: type: object properties: xmlns: type: string xmlns:xsi: type: string xsi:schemaLocation: type: string identifier: type: string xml:lang: type: string title: type: string required: - xmlns - xmlns:xsi - xsi:schemaLocation - identifier - xml:lang - title qti-stimulus-body: type: object additionalProperties: true qti-stylesheet: type: object properties: _attributes: type: object properties: href: type: string type: type: string required: - href - type required: - _attributes qti-catalog-info: type: object properties: qti-catalog: type: object properties: _attributes: type: object properties: id: type: string required: - id qti-card: type: object properties: _attributes: type: object properties: support: type: string required: - support qti-html-content: type: object additionalProperties: true required: - _attributes - qti-html-content required: - _attributes - qti-card required: - qti-catalog required: - _attributes - qti-stimulus-body required: - qti-assessment-stimulus description: >- Parsed XML content generated by the service provider. For production use, rawXml is recommended over this parsed structure. createdAt: type: string format: date-time description: ISO 8601 timestamp when the entity was created updatedAt: type: string format: date-time description: ISO 8601 timestamp when the entity was last updated __v: type: number description: MongoDB version key for optimistic concurrency control required: - identifier - title - catalogInfo - rawXml - content - createdAt - updatedAt description: >- Complete stimulus data structure returned from the database including parsed content and metadata '404': description: Stimulus not found content: application/json: schema: type: object properties: error: type: string required: - error '500': description: Internal Server Error content: application/json: schema: type: object properties: error: type: string description: Error type identifier message: type: string description: Human-readable error message eventId: type: string description: Sentry event ID for error tracking details: type: string description: Stack trace or additional error details required: - error - message - details description: Internal server error response components: securitySchemes: OAuth2: type: oauth2 flows: clientCredentials: scopes: https://purl.imsglobal.org/spec/qti/v3/scope/readonly: Read access to QTI https://purl.imsglobal.org/spec/qti/v3/scope/createput: Create and update access to QTI https://purl.imsglobal.org/spec/qti/v3/scope/delete: Delete access to QTI tokenUrl: >- https://prod-beyond-timeback-api-2-idp.auth.us-east-1.amazoncognito.com/oauth2/token MCP: type: oauth2 flows: authorizationCode: authorizationUrl: >- https://prod-beyond-timeback-api-2-idp.auth.us-east-1.amazoncognito.com/oauth2/authorize tokenUrl: >- https://prod-beyond-timeback-api-2-idp.auth.us-east-1.amazoncognito.com/oauth2/token scopes: https://purl.imsglobal.org/spec/qti/v3/scope/readonly: Read access to QTI ````