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

# Create New Dataset

> Create a new dataset or return existing dataset with the same name.

This endpoint creates a new dataset with the specified name. If a dataset
with the same name already exists for the user, it returns the existing
dataset instead of creating a duplicate. The user is automatically granted
all permissions (read, write, share, delete) on the created dataset.

## Request Parameters
- **dataset_data** (DatasetCreationPayload): Dataset creation parameters containing:
  - **name**: The name for the new dataset

## Response
Returns the created or existing dataset object containing:
- **id**: Unique dataset identifier
- **name**: Dataset name
- **created_at**: When the dataset was created
- **updated_at**: When the dataset was last updated
- **owner_id**: ID of the dataset owner

## Error Codes
- **418 I'm a teapot**: Error creating dataset



## OpenAPI

````yaml /cognee_openapi_spec.json post /api/v1/datasets
openapi: 3.1.0
info:
  title: Cognee API
  description: Cognee API with Bearer token and Cookie auth
  version: 1.0.0
servers:
  - url: https://api.cognee.ai
    description: Production server (full functionality)
  - url: http://localhost:8000
    description: Local development server (requires local setup)
security:
  - BearerAuth: []
  - ApiKeyAuth: []
tags:
  - name: activity
    description: ''
  - name: add
    description: Data ingestion endpoints for adding text, files, and structured data.
  - name: auth
    description: >-
      Authentication endpoints for user registration, login, and token
      management.
  - name: checks
    description: ''
  - name: cognify
    description: >-
      Knowledge processing endpoints to transform raw data into knowledge
      graphs.
  - name: configuration
    description: ''
  - name: datasets
    description: Dataset management endpoints for listing, creating, and deleting datasets.
  - name: delete
    description: Data deletion endpoints (deprecated — use datasets endpoints instead).
  - name: forget
    description: ''
  - name: health
    description: ''
  - name: improve
    description: ''
  - name: llm
    description: ''
  - name: memify
    description: ''
  - name: notebooks
    description: ''
  - name: ontologies
    description: ''
  - name: permissions
    description: Permission management for multi-user access control.
  - name: recall
    description: ''
  - name: remember
    description: ''
  - name: responses
    description: Response generation endpoints using the knowledge graph.
  - name: search
    description: Search endpoints for querying the knowledge graph.
  - name: sessions
    description: ''
  - name: settings
    description: Configuration endpoints for managing Cognee settings.
  - name: sync
    description: ''
  - name: update
    description: ''
  - name: users
    description: User management endpoints.
  - name: visualize
    description: Graph visualization endpoints.
paths:
  /api/v1/datasets:
    post:
      tags:
        - datasets
      summary: Create New Dataset
      description: >-
        Create a new dataset or return existing dataset with the same name.


        This endpoint creates a new dataset with the specified name. If a
        dataset

        with the same name already exists for the user, it returns the existing

        dataset instead of creating a duplicate. The user is automatically
        granted

        all permissions (read, write, share, delete) on the created dataset.


        ## Request Parameters

        - **dataset_data** (DatasetCreationPayload): Dataset creation parameters
        containing:
          - **name**: The name for the new dataset

        ## Response

        Returns the created or existing dataset object containing:

        - **id**: Unique dataset identifier

        - **name**: Dataset name

        - **created_at**: When the dataset was created

        - **updated_at**: When the dataset was last updated

        - **owner_id**: ID of the dataset owner


        ## Error Codes

        - **418 I'm a teapot**: Error creating dataset
      operationId: create_new_dataset_api_v1_datasets_post
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/DatasetCreationPayload'
            example:
              name: my_dataset
              description: A test dataset
        required: true
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DatasetDTO'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
      security:
        - BearerAuth: []
        - ApiKeyAuth: []
components:
  schemas:
    DatasetCreationPayload:
      properties:
        name:
          type: string
          title: Name
      type: object
      required:
        - name
      title: DatasetCreationPayload
    DatasetDTO:
      properties:
        id:
          type: string
          format: uuid
          title: Id
        name:
          type: string
          title: Name
        createdAt:
          type: string
          format: date-time
          title: Createdat
        updatedAt:
          anyOf:
            - type: string
              format: date-time
            - type: 'null'
          title: Updatedat
        ownerId:
          type: string
          format: uuid
          title: Ownerid
      type: object
      required:
        - id
        - name
        - createdAt
        - ownerId
      title: DatasetDTO
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    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
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-Api-Key

````