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

# Get a dataset by its slug or id

> Get a dataset by its slug or id.



## OpenAPI

````yaml GET /api/dataset/{slugOrId}
openapi: 3.1.0
info:
  title: LangWatch API
  version: 1.0.0
  description: LangWatch openapi spec
servers:
  - url: https://app.langwatch.ai
security:
  - project_api_key: []
paths:
  /api/dataset/{slugOrId}:
    get:
      description: Get a dataset by its slug or id.
      operationId: getApiDatasetBySlugOrId
      parameters:
        - schema:
            type: string
          in: path
          name: slugOrId
          required: true
      responses:
        '200':
          description: Success
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      type: object
                      properties:
                        id:
                          type: string
                        datasetId:
                          type: string
                        projectId:
                          type: string
                        entry:
                          type: object
                          additionalProperties: {}
                        createdAt:
                          type: string
                        updatedAt:
                          type: string
                      required:
                        - id
                        - datasetId
                        - projectId
                        - entry
                        - createdAt
                        - updatedAt
                required:
                  - data
        '400':
          description: Bad Request
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                  message:
                    type: string
                required:
                  - error
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                  message:
                    type: string
                required:
                  - error
        '404':
          description: Dataset not found
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                  message:
                    type: string
                required:
                  - error
        '422':
          description: Unprocessable Entity
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                  message:
                    type: string
                required:
                  - error
        '500':
          description: Internal Server Error
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                  message:
                    type: string
                required:
                  - error
components:
  securitySchemes:
    project_api_key:
      type: apiKey
      in: header
      name: X-Auth-Token
      description: >-
        Project API key for sending traces and accessing project-scoped
        resources. Format: sk-lw-... (no underscore). Obtain one by creating a
        project via the Admin API or the LangWatch UI.

````