> ## Documentation Index > Fetch the complete documentation index at: https://docs.omni.co/llms.txt > Use this file to discover all available pages before exploring further. # List topics > Retrieve a list of topics in the model, including composite topics. ## OpenAPI ````yaml /api/openapi.yaml get /v1/models/{modelId}/topic openapi: 3.1.0 info: title: Omni API description: > The Omni REST API provides programmatic access to your Omni instance for managing users, documents, queries, schedules, and more. version: 1.0.0 contact: name: Omni Support url: https://docs.omni.co servers: - url: https://{instance}.omniapp.co/api description: Production variables: instance: default: blobsrus description: Your production Omni instance subdomain - url: https://{instance}.playground.exploreomni.dev/api description: Playground variables: instance: default: blobsrus description: Your playground Omni instance subdomain security: - bearerAuth: [] - orgApiKey: [] tags: - name: Who Am I description: Inspect your own user permissions - name: AI description: AI-powered query generation - name: AI Credit Controls description: Manage organization-level AI credit usage - name: AI Credit Usage description: Monitor AI credit usage - name: AI Evals description: >- Manage prompt sets and runs used to score AI quality against curated prompt suites. - name: AI Model Suggestions description: Manage AI-generated suggestions for shared models - name: AI Routines description: >- Manage Routines, which are scheduled, recurring AI-powered tasks that run automatically on your data - name: Apps description: Draft and publish app documents. - name: Documents v2 description: > A draft-based workflow for creating and editing documents: create a document, patch a draft, then publish. - name: Documents description: Create, retrieve, and manage documents - name: API Tokens description: >- Manage API tokens (Organization keys, Personal Access Tokens, MCP OAuth grants) - name: Connections description: Manage database connections - name: Connection environments description: Manage connection environments database connections - name: Color Palettes description: Manage custom chart color palettes - name: Content description: Unified content retrieval (documents and folders) - name: Content migration description: Export and import dashboards - name: Content validator description: Validate content against models and perform find/replace operations - name: Dashboard downloads description: Download dashboards and tiles as PDF, PNG, XLSX, CSV, or JSON files - name: Dashboard filters and controls description: Read and update dashboard filter and control default values - name: dbt description: Manage dbt configuration for connections - name: Document favorites description: Favorite and unfavorite documents - name: Document labels description: Apply and manage labels on documents - name: Document permissions description: Manage document-level access - name: Labels description: | Manage labels in the organization - name: Folders description: Create and organize content folders - name: Folder labels description: Apply and manage labels on folders - name: Folder permissions description: Manage folder-level access - name: Jobs description: Check status of asynchronous jobs - name: Models description: Create and manage data models - name: Model branches description: Manage model branches and merge changes - name: Model git configuration description: Manage git configuration for shared models - name: Queries description: Execute workbook queries - name: Schedules description: Create and manage scheduled tasks - name: Schedule recipients description: Manage schedule recipients - name: Schema refresh schedules description: Manage automated schema refresh schedules for connections - name: Skills description: >- Manage skills, the saved slash-command instructions the Omni AI assistant runs - name: Topics description: Retrieve topic information from models - name: Uploads description: Manage file uploads - name: Users description: Manage users - name: User attributes description: Manage user attribute definitions - name: User groups description: Manage user groups - name: User model roles description: Manage model and connection role assignments for users - name: User group model roles description: Manage model and connection role assignments for user groups - name: Uploads description: Manage CSV and spreadsheet uploads paths: /v1/models/{modelId}/topic: get: tags: - Topics summary: List topics description: | Retrieve a list of topics in the model, including composite topics. operationId: modelsListTopics parameters: - $ref: '#/components/parameters/modelId' - $ref: '#/components/parameters/branchId' responses: '200': description: List of topics in the model content: application/json: schema: required: - success - topics type: object properties: success: type: boolean description: Whether the operation succeeded topics: type: array description: List of topic objects items: anyOf: - title: Regular topic type: object properties: base_view_name: $ref: '#/components/schemas/TopicBaseViewName' description: $ref: '#/components/schemas/TopicDescription' group_label: type: string description: Group label hidden: $ref: '#/components/schemas/TopicHidden' is_composite: $ref: '#/components/schemas/TopicIsComposite' label: $ref: '#/components/schemas/TopicLabel' name: $ref: '#/components/schemas/TopicName' - title: Composite topic type: object properties: description: $ref: '#/components/schemas/TopicDescription' hidden: $ref: '#/components/schemas/TopicHidden' is_composite: $ref: '#/components/schemas/TopicIsComposite' label: $ref: '#/components/schemas/TopicLabel' name: $ref: '#/components/schemas/TopicName' import_models: $ref: '#/components/schemas/CompositeTopicImportModels' topics: $ref: '#/components/schemas/CompositeTopicTopicList' '401': description: Authentication required content: application/json: schema: $ref: '#/components/schemas/ApiError401' '403': description: Permission denied content: application/json: schema: $ref: '#/components/schemas/ApiError403' '404': description: Model not found content: application/json: schema: $ref: '#/components/schemas/ApiError404' components: parameters: modelId: name: modelId schema: type: string format: uuid example: 123e4567-e89b-12d3-a456-426614174000 required: true in: path description: The ID of the model. branchId: name: branch_id schema: type: string format: uuid example: 123e4567-e89b-12d3-a456-426614174001 required: false description: Branch ID to use for branch-aware operations in: query schemas: TopicBaseViewName: name: base_view_name type: string description: Name of the topic's base view example: product_features TopicDescription: type: string description: Description of the topic, shown in the topic picker example: Details about the Blobs R Us product roadmap TopicHidden: type: boolean description: Whether the topic is hidden from the topic picker. example: false TopicIsComposite: name: is_composite type: boolean enum: - false description: >- Whether the topic is a composite topic. Absent or `false` for a regular topic; only present and `true` on a [composite topic](/modeling/composite-topics). TopicLabel: type: string description: The display label for the topic example: Blob Roadmap TopicName: type: string description: The name of the topic example: blob_roadmap CompositeTopicImportModels: name: import_models type: array description: Other models this composite topic imports topics from. items: type: object properties: model_ref: type: string description: The ID of the model the topics are imported from. topics: type: array description: The topics imported from the source model. items: type: object properties: topic: type: string description: The name of the topic in the source model. alias: type: string description: A local alias for the imported topic. ignored: type: boolean description: Whether the imported topic is ignored. CompositeTopicTopicList: name: topics type: array items: type: string description: >- The names of the two or more topics combined into this composite topic. See [topics](/modeling/composite-topics/parameters/topics). ApiError401: type: object properties: detail: type: string description: Human-readable error message describing what went wrong. example: 'Unauthorized: Missing or invalid API key' status: type: integer description: HTTP status code of the error. example: 401 required: - detail - status ApiError403: type: object properties: detail: type: string description: Human-readable error message describing what went wrong. status: type: integer description: HTTP status code of the error. example: 403 required: - detail - status ApiError404: type: object properties: detail: type: string description: Human-readable error message describing what went wrong. status: type: integer description: HTTP status code of the error. example: 404 required: - detail - status securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: JWT description: > Can be either an [Organization API Key](/api/authentication#organization-api-keys) or [Personal Access Token (PAT)](/api/authentication#token-types). Include in the `Authorization` header as: `Bearer YOUR_TOKEN` orgApiKey: type: http scheme: bearer bearerFormat: JWT description: > Requires an [Organization API Key](/api/authentication#organization-api-keys). Personal Access Tokens (PATs) are not supported for this endpoint. Include in the `Authorization` header as: `Bearer ORGANIZATION_API_KEY` ````