> ## Documentation Index > Fetch the complete documentation index at: https://docs.truestate.io/llms.txt > Use this file to discover all available pages before exploring further. # Read a feature memory entry by key. ## OpenAPI ````yaml https://api.truestate.io/openapi.json get /feature-memory/{feature_key}/ openapi: 3.1.0 info: title: TrueState Backend API summary: >- TrueState is an AI platform for business users to create high-impact AI solutions. description: > This **[TrueState](https://www.truestate.io/)** backend API allows our clients to automate and more powerfully retrieve and modify data from the TrueState platform. Example use cases include: - Accessing embeddings for a dataset. - Automating the process of dataset creation and model retraining as your data changes. - Much more. Our backend is built using the [FastAPI](https://fastapi.tiangolo.com/) framework in python using [Auth0](https://auth0.com/) and [Client API Keys](https://www.truestate.io/dawn/docs) for internal an external authentication, respectively. Our backend is designed to be secure, scalable, easy to use and well documented _(each router with its own linked docs page)_. Clients can only access data from their own organisation, as setup in Auth0 our the Client API Keys. See how **[here](https://www.truestate.io/dawn/docs)**. **PS**: You can view this API documentation in either **[Swagger](swagger/docs)** or **[Redoc](redoc/)**, but only the swagger lets you test calls. contact: name: True State Support url: https://www.truestate.io/dawn/docs email: support@truestate.io license: name: Private url: https://www.apache.org/licenses/LICENSE-2.0.html version: 0.13.95 servers: [] security: [] paths: /feature-memory/{feature_key}/: get: tags: - feature-memory summary: Read a feature memory entry by key. operationId: read_feature_memory_feature_memory__feature_key___get parameters: - name: feature_key in: path required: true schema: type: string title: Feature Key - name: Api-key in: header required: false schema: anyOf: - type: string - type: 'null' title: Api-Key responses: '200': description: Successful Response content: application/json: schema: $ref: '#/components/schemas/FeatureMemoryRead' '404': description: Not found '422': description: Validation Error content: application/json: schema: $ref: '#/components/schemas/HTTPValidationError' security: - HTTPBearer: [] components: schemas: FeatureMemoryRead: properties: key: type: string maxLength: 255 minLength: 1 title: Key description: >- Stable feature key, for example customer.login_count_30d. Use letters, numbers, underscores, dots, colons, or hyphens. content: type: string minLength: 1 title: Content description: >- Freeform markdown explaining what the feature means and how to calculate it. annotations: additionalProperties: true type: object title: Annotations description: >- Optional lightweight metadata such as tags, owner, review hints, datasets, or implementation notes. Keep primary meaning in content. status: $ref: '#/components/schemas/FeatureMemoryStatus' default: active id: type: string format: uuid title: Id organisation_id: type: string title: Organisation Id version: type: integer title: Version asset_links: items: $ref: '#/components/schemas/FeatureMemoryAssetLinkRead' type: array title: Asset Links created_by_member_id: anyOf: - type: string format: uuid - type: 'null' title: Created By Member Id updated_by_member_id: anyOf: - type: string format: uuid - type: 'null' title: Updated By Member Id created_at: type: string format: date-time title: Created At updated_at: type: string format: date-time title: Updated At last_edit_reason: anyOf: - type: string - type: 'null' title: Last Edit Reason type: object required: - key - content - id - organisation_id - version - created_at - updated_at title: FeatureMemoryRead HTTPValidationError: properties: detail: items: $ref: '#/components/schemas/ValidationError' type: array title: Detail type: object title: HTTPValidationError FeatureMemoryStatus: type: string enum: - active - deprecated title: FeatureMemoryStatus FeatureMemoryAssetLinkRead: properties: asset_type: $ref: '#/components/schemas/FeatureMemoryAssetType' asset_id: type: string maxLength: 255 minLength: 1 title: Asset Id description: >- Stable id of the associated dataset, pipeline, model, deployment, dashboard, or automation. asset_name: anyOf: - type: string maxLength: 255 - type: 'null' title: Asset Name usage_notes: anyOf: - type: string maxLength: 4000 - type: 'null' title: Usage Notes description: Optional note describing how this asset uses the feature. annotations: additionalProperties: true type: object title: Annotations description: >- Optional metadata such as metric names, expected ranges, owners, or review hints. id: type: string format: uuid title: Id feature_id: type: string format: uuid title: Feature Id organisation_id: type: string title: Organisation Id created_by_member_id: anyOf: - type: string format: uuid - type: 'null' title: Created By Member Id updated_by_member_id: anyOf: - type: string format: uuid - type: 'null' title: Updated By Member Id created_at: type: string format: date-time title: Created At updated_at: type: string format: date-time title: Updated At type: object required: - asset_type - asset_id - id - feature_id - organisation_id - created_at - updated_at title: FeatureMemoryAssetLinkRead ValidationError: properties: loc: items: anyOf: - type: string - type: integer type: array title: Location msg: type: string title: Message type: type: string title: Error Type input: title: Input ctx: type: object title: Context type: object required: - loc - msg - type title: ValidationError FeatureMemoryAssetType: type: string enum: - automation - dashboard - dataset - deployment - model - pipeline title: FeatureMemoryAssetType securitySchemes: HTTPBearer: type: http scheme: bearer ````