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

# Create dataset_snapshot

> Create a new dataset_snapshot. If there is an existing dataset_snapshot with the same name as the one specified in the request, will return the existing dataset_snapshot unmodified



## OpenAPI

````yaml /openapi.yaml post /v1/dataset_snapshot
openapi: 3.1.1
info:
  version: 1.0.0
  title: Braintrust API
  description: >-
    API specification for the backend data server. The API is hosted globally at

    https://api.braintrust.dev or in your own environment.


    You can access the OpenAPI spec for this API at
    https://github.com/braintrustdata/braintrust-openapi.
  license:
    name: Apache 2.0
servers:
  - url: https://api.braintrust.dev
security:
  - bearerAuth: []
  - {}
paths:
  /v1/dataset_snapshot:
    post:
      tags:
        - DatasetSnapshots
      summary: Create dataset_snapshot
      description: >-
        Create a new dataset_snapshot. If there is an existing dataset_snapshot
        with the same name as the one specified in the request, will return the
        existing dataset_snapshot unmodified
      operationId: postDatasetSnapshot
      requestBody:
        description: Any desired information about the new dataset_snapshot object
        required: false
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CreateDatasetSnapshot'
      responses:
        '200':
          description: Returns the new dataset_snapshot object
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DatasetSnapshot'
        '400':
          description: >-
            The request was unacceptable, often due to missing a required
            parameter
          content:
            text/plain:
              schema:
                type: string
            application/json:
              schema:
                nullable: true
        '401':
          description: No valid API key provided
          content:
            text/plain:
              schema:
                type: string
            application/json:
              schema:
                nullable: true
        '403':
          description: The API key doesn’t have permissions to perform the request
          content:
            text/plain:
              schema:
                type: string
            application/json:
              schema:
                nullable: true
        '429':
          description: >-
            Too many requests hit the API too quickly. We recommend an
            exponential backoff of your requests
          headers:
            Retry-After:
              schema:
                type: string
          content:
            text/plain:
              schema:
                type: string
            application/json:
              schema:
                nullable: true
        '500':
          description: Something went wrong on Braintrust's end. (These are rare.)
          content:
            text/plain:
              schema:
                type: string
            application/json:
              schema:
                nullable: true
      security:
        - bearerAuth: []
        - {}
components:
  schemas:
    CreateDatasetSnapshot:
      type: object
      properties:
        dataset_id:
          type: string
          format: uuid
          description: Unique identifier for the dataset that this snapshot belongs to
        name:
          type: string
          minLength: 1
          description: Name of the dataset snapshot
        description:
          type: string
          nullable: true
          description: Textual description of the dataset snapshot
        xact_id:
          type: string
          minLength: 1
          description: Transaction id of the brainstore version at the time of the snapshot
      required:
        - dataset_id
        - name
        - xact_id
    DatasetSnapshot:
      type: object
      properties:
        id:
          type: string
          format: uuid
          description: Unique identifier for the dataset snapshot
        dataset_id:
          type: string
          format: uuid
          description: Unique identifier for the dataset that this snapshot belongs to
        name:
          type: string
          description: Name of the dataset snapshot
        description:
          type: string
          nullable: true
        xact_id:
          type: string
          description: Transaction id of the brainstore version at the time of the snapshot
        created:
          type: string
          nullable: true
          format: date-time
          description: Date of dataset snapshot creation
      required:
        - id
        - dataset_id
        - name
        - description
        - xact_id
        - created
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: API key or JWT
      description: >-
        Most Braintrust endpoints are authenticated by providing your API key as
        a header `Authorization: Bearer [api_key]` to your HTTP request. You can
        create an API key in the Braintrust [organization settings
        page](https://www.braintrustdata.com/app/settings?subroute=api-keys).

````