> ## Documentation Index > Fetch the complete documentation index at: https://docs.edgeimpulse.com/llms.txt > Use this file to discover all available pages before exploring further. # Get transfer learning blocks > Retrieve all transfer learning blocks. ## OpenAPI ````yaml /.assets/openapi.yaml get /api/organizations/{organizationId}/transfer-learning openapi: 3.0.0 info: title: Edge Impulse API version: 1.0.0 servers: - url: https://studio.edgeimpulse.com/v1 security: - ApiKeyAuthentication: [] - JWTAuthentication: [] - JWTHttpHeaderAuthentication: [] - OAuth2: [] paths: /api/organizations/{organizationId}/transfer-learning: get: tags: - OrganizationBlocks summary: Get transfer learning blocks description: Retrieve all transfer learning blocks. operationId: listOrganizationTransferLearningBlocks parameters: - $ref: '#/components/parameters/OrganizationIdParameter' responses: '200': description: OK content: application/json: schema: $ref: >- #/components/schemas/ListOrganizationTransferLearningBlocksResponse components: parameters: OrganizationIdParameter: name: organizationId in: path required: true description: Organization ID schema: type: integer schemas: ListOrganizationTransferLearningBlocksResponse: allOf: - $ref: '#/components/schemas/GenericApiResponse' - type: object required: - transferLearningBlocks properties: transferLearningBlocks: type: array items: $ref: '#/components/schemas/OrganizationTransferLearningBlock' GenericApiResponse: type: object required: - success properties: success: type: boolean description: Whether the operation succeeded error: type: string description: Optional error description (set if 'success' was false) OrganizationTransferLearningBlock: type: object required: - id - name - dockerContainer - dockerContainerManagedByEdgeImpulse - created - description - operatesOn - implementationVersion - isPublic - isPublicForDevices - isPublicEnterpriseOnly - parameters - indRequiresGpu - sourceCodeAvailable - sourceCodeDownloadStaffOnly - indBlockNoLongerAvailable properties: id: type: integer name: type: string dockerContainer: type: string dockerContainerManagedByEdgeImpulse: type: boolean created: type: string format: date-time createdByUser: $ref: '#/components/schemas/CreatedUpdatedByUser' lastUpdated: type: string format: date-time lastUpdatedByUser: $ref: '#/components/schemas/CreatedUpdatedByUser' description: type: string userId: type: integer userName: type: string operatesOn: $ref: '#/components/schemas/OrganizationTransferLearningOperatesOn' objectDetectionLastLayer: $ref: '#/components/schemas/ObjectDetectionLastLayer' implementationVersion: type: integer isPublic: type: boolean description: >- Whether this block is publicly available to Edge Impulse users (if false, then only for members of the owning organization) isPublicForDevices: description: >- If `isPublic` is true, the list of devices (from latencyDevices) for which this model can be shown. type: array items: type: string publicProjectTierAvailability: $ref: '#/components/schemas/PublicProjectTierAvailability' isPublicEnterpriseOnly: type: boolean description: Whether this block is publicly available to only enterprise users enterpriseOnly: type: boolean description: Whether this block is available to only enterprise users repositoryUrl: type: string description: URL to the source code of this custom learn block. parameters: description: >- List of parameters, spec'ed according to https://docs.edgeimpulse.com/docs/tips-and-tricks/adding-parameters-to-custom-blocks type: array items: type: object imageInputScaling: $ref: '#/components/schemas/ImageInputScaling' indRequiresGpu: description: If set, requires this block to be scheduled on GPU. type: boolean sourceCodeAvailable: type: boolean sourceCodeDownloadStaffOnly: type: boolean description: Whether the source code is only available for staff users. displayCategory: $ref: '#/components/schemas/BlockDisplayCategory' customModelVariants: description: >- List of custom model variants produced when this block is trained. This is experimental and may change in the future. type: array items: $ref: >- #/components/schemas/OrganizationTransferLearningBlockCustomVariant indBlockNoLongerAvailable: type: boolean description: >- If set, then this block is no longer available for training; and blockNoLongerAvailableReason will be set. blockNoLongerAvailableReason: type: string description: >- In Markdown format. Set if `indBlockNoLongerAvailable` is true, contains migration information for existing users of this block. CreatedUpdatedByUser: type: object required: - id - name - username properties: id: type: integer name: type: string username: type: string photo: type: string OrganizationTransferLearningOperatesOn: type: string enum: - object_detection - audio - image - regression - anomaly_detection - visual_anomaly_detection - other - image_akida - object_detection_akida - classification_akida ObjectDetectionLastLayer: type: string enum: - mobilenet-ssd - fomo - yolov2-akida - yolov5 - yolov5v5-drpai - yolox - yolov7 - yolo-pro - tao-retinanet - tao-ssd - tao-yolov3 - tao-yolov4 - yolov11 - yolov11-abs - paddleocr-detector - qc-face-det-lite PublicProjectTierAvailability: description: >- For public blocks, this indicates the project tiers for which this block is available. type: string enum: - enterprise-only - all-projects - all-projects-including-whitelabels ImageInputScaling: description: >- Normalization that is applied to images. If this is not set then 0..1 is used. "0..1" gives you non-normalized pixels between 0 and 1. "-1..1" gives you non-normalized pixels between -1 and 1. "0..255" gives you non-normalized pixels between 0 and 255. "-128..127" gives you non-normalized pixels between -128 and 127. "torch" first scales pixels between 0 and 1, then applies normalization using the ImageNet dataset (same as `torchvision.transforms.Normalize()`). "bgr-subtract-imagenet-mean" scales to 0..255, reorders pixels to BGR, and subtracts the ImageNet mean from each channel. type: string enum: - 0..1 - '-1..1' - '-128..127' - 0..255 - torch - bgr-subtract-imagenet-mean BlockDisplayCategory: description: Category to display this block in the UI. type: string enum: - classical - tao - developer-preview OrganizationTransferLearningBlockCustomVariant: type: object required: - key - name - inferencingEntrypoint properties: key: type: string description: Unique identifier or key for this custom variant name: type: string description: Custom variant display name inferencingEntrypoint: type: string description: >- The entrypoint command to run custom inferencing for this model variant, via the learn block container profilingEntrypoint: type: string description: >- The entrypoint command to run custom profiling for this model variant, via the learn block container modelFiles: type: array items: $ref: '#/components/schemas/OrganizationTransferLearningBlockModelFile' OrganizationTransferLearningBlockModelFile: type: object required: - id - name - type - description properties: id: type: string description: Output artifact unique file ID, in kebab case name: type: string description: Output artifact file name type: type: string description: Output artifact file type enum: - binary - json - text description: type: string description: Output artifact file description securitySchemes: ApiKeyAuthentication: type: apiKey in: header name: x-api-key JWTAuthentication: type: apiKey in: cookie name: jwt JWTHttpHeaderAuthentication: type: apiKey in: header name: x-jwt-token OAuth2: type: oauth2 flows: authorizationCode: authorizationUrl: /v1/oauth/authorize tokenUrl: /v1/oauth/token scopes: openid: Access to basic profile information email: Access to email address profile: Access to full profile information implicit: authorizationUrl: /v1/oauth/authorize scopes: openid: Access to basic profile information email: Access to email address profile: Access to full profile information password: tokenUrl: /v1/oauth/token scopes: openid: Access to basic profile information email: Access to email address profile: Access to full profile information clientCredentials: tokenUrl: /v1/oauth/token scopes: openid: Access to basic profile information email: Access to email address profile: Access to full profile information ````