> ## Documentation Index
> Fetch the complete documentation index at: https://docs.nx1cloud.com/llms.txt
> Use this file to discover all available pages before exploring further.

# List domains

> List available DataHub domains for semantic model generation.

**Required roles**: `nx1_semantic_user`, `nx1_semantic_modeller`, or `nx1_semantic_admin`



## OpenAPI

````yaml get /api/semantic-models/discovery/domains
openapi: 3.1.0
info:
  title: Nx1 AI API
  description: |

    AI API for Nx1 Data Platform Management and Automated Data Tasks.

    Authentication is required via PSK in Authorization header.

    Default PSK is | [ask a friend] |
  version: 0.10.2
servers: []
security: []
paths:
  /api/semantic-models/discovery/domains:
    get:
      tags:
        - Semantic models
      summary: List domains
      description: >-
        List available DataHub domains for semantic model generation.


        **Required roles**: `nx1_semantic_user`, `nx1_semantic_modeller`, or
        `nx1_semantic_admin`
      operationId: list_domains_api_semantic_models_discovery_domains_get
      responses:
        '200':
          description: List of available domains.
          content:
            application/json:
              schema:
                items:
                  $ref: '#/components/schemas/DomainInfo'
                type: array
                title: >-
                  Response List Domains Api Semantic Models Discovery Domains
                  Get
        '400':
          description: Bad Request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
      security:
        - OAuth2AuthorizationCodeBearer: []
        - APIKeyHeader: []
components:
  schemas:
    DomainInfo:
      properties:
        urn:
          type: string
          title: Urn
        name:
          type: string
          title: Name
        description:
          type: string
          title: Description
        dataset_count:
          type: integer
          title: Dataset Count
      type: object
      required:
        - urn
        - name
        - description
        - dataset_count
      title: DomainInfo
      description: Information about a DataHub domain.
    ErrorResponse:
      properties:
        error:
          type: string
          title: Error
          description: A brief description of the error that occurred.
        code:
          type: integer
          title: Code
          description: The HTTP status code associated with the error.
          default: 500
      type: object
      required:
        - error
      title: ErrorResponse
  securitySchemes:
    OAuth2AuthorizationCodeBearer:
      type: oauth2
      flows:
        authorizationCode:
          scopes: {}
          authorizationUrl: >-
            https://sso-rapid.rapid.nx1cloud.com/realms/rapid/protocol/openid-connect/auth
          tokenUrl: >-
            https://sso-rapid.rapid.nx1cloud.com/realms/rapid/protocol/openid-connect/token
    APIKeyHeader:
      type: apiKey
      in: header
      name: Authorization-PSK

````