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

# Create a new branch

> Create a new branch from another branch name or commit ID. Returns existing branch if name already exists.



## OpenAPI

````yaml https://dev.hub.oxen.ai/api/_spec/oxen_server_openapi.json post /api/repos/{namespace}/{repo_name}/branches
openapi: 3.1.0
info:
  description: >-
    Oxen is a fast, unstructured data version control, to help version large
    machine learning datasets written in Rust.
  license:
    name: ''
  title: oxen-server
  version: 0.50.0
servers:
  - description: Production API
    url: https://hub.oxen.ai
  - description: Local Development
    url: http://localhost:3000
security:
  - api_key: []
tags:
  - description: Namespace management endpoints
    name: Namespaces
  - description: Repository management endpoints.
    name: Repositories
paths:
  /api/repos/{namespace}/{repo_name}/branches:
    post:
      tags:
        - Branches
      summary: Create a new branch
      description: >-
        Create a new branch from another branch name or commit ID. Returns
        existing branch if name already exists.
      operationId: create
      parameters:
        - description: Namespace of the repository
          example: ox
          in: path
          name: namespace
          required: true
          schema:
            type: string
        - description: Name of the repository
          example: ImageNet-1k
          in: path
          name: repo_name
          required: true
          schema:
            type: string
      requestBody:
        content:
          application/json:
            example:
              from_name: main
              new_name: development
            schema:
              $ref: '#/components/schemas/BranchNewFromBranchName'
        description: >-
          Branch creation details. Can be created from another branch or a
          commit ID.
        required: true
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BranchResponse'
          description: Branch created
        '400':
          description: Invalid request body
        '404':
          description: Repository or source branch/commit not found
components:
  schemas:
    BranchNewFromBranchName:
      properties:
        from_name:
          type: string
        new_name:
          type: string
      required:
        - new_name
        - from_name
      type: object
    BranchResponse:
      allOf:
        - $ref: '#/components/schemas/StatusMessage'
        - properties:
            branch:
              $ref: '#/components/schemas/Branch'
          required:
            - branch
          type: object
    StatusMessage:
      properties:
        oxen_version:
          type:
            - string
            - 'null'
        status:
          type: string
        status_message:
          type: string
      required:
        - status
        - status_message
      type: object
    Branch:
      properties:
        commit_id:
          type: string
        name:
          type: string
      required:
        - name
        - commit_id
      type: object
  securitySchemes:
    api_key:
      bearerFormat: JWT
      scheme: bearer
      type: http

````