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

# Download Output File

> Proxy-download one file of a download-output dataset, streamed through the API.
The fallback for `output.files[].url` when V4 signed URLs aren't available; also a
stable, always-authenticated download route.



## OpenAPI

````yaml /api-reference/openapi.json get /v1/augmentations/{aug_id}/files/{file_path}
openapi: 3.1.0
info:
  title: Kite Platform API
  description: >-
    Public API for Kite. Authenticate with `Authorization: Bearer kite_...`, and
    send `Kite-Version: 2026-09-27` to pin the dated contract your code was
    written against (without it you get 2026-09-27). Every response carries the
    version that served it.
  version: '2026-09-27'
servers:
  - url: https://api.kiteml.com
    description: Kite Platform API
security:
  - bearerAuth: []
tags:
  - name: Augmentations
    description: Generate new episodes from a LeRobot dataset.
  - name: Training runs
    description: Fine-tune a policy on a dataset, one run per policy.
  - name: Twins
    description: Rebuild a robot episode as an interactable MuJoCo scene (private beta).
  - name: Catalog
    description: Policies, hardware tiers, and dataset inspection.
  - name: Operations
    description: Poll any run by its id.
  - name: Webhooks
    description: Endpoints that receive events, and the event log.
  - name: API keys
    description: The key making the request.
  - name: Usage
    description: Token usage and credit balance.
paths:
  /v1/augmentations/{aug_id}/files/{file_path}:
    get:
      tags:
        - Augmentations
      summary: Download Output File
      description: >-
        Proxy-download one file of a download-output dataset, streamed through
        the API.

        The fallback for `output.files[].url` when V4 signed URLs aren't
        available; also a

        stable, always-authenticated download route.
      operationId: download_output_file_v1_augmentations__aug_id__files__file_path__get
      parameters:
        - name: aug_id
          in: path
          required: true
          schema:
            type: string
            title: Aug Id
        - name: file_path
          in: path
          required: true
          schema:
            type: string
            title: File Path
        - $ref: '#/components/parameters/KiteVersion'
      responses:
        '200':
          description: The file, streamed; its Content-Type follows the file extension
          content:
            application/octet-stream: {}
        '400':
          description: >-
            Invalid request (`parameter_invalid`, `unsupported_version`, ...);
            `param` names the field
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiErrorResponse'
        '401':
          description: Missing or invalid API key (`unauthenticated`)
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiErrorResponse'
        '403':
          description: >-
            The key lacks a scope this route needs (`missing_scope`), or the
            feature is not enabled for the account
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiErrorResponse'
        '404':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiErrorResponse'
          description: >-
            No such resource (`resource_not_found`); another account's ids
            answer the same
        '429':
          description: >-
            Rate or concurrency limited (`rate_limit_exceeded`,
            `concurrency_limit_exceeded`, `capacity_exceeded`); honor
            `Retry-After`
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiErrorResponse'
components:
  parameters:
    KiteVersion:
      name: Kite-Version
      in: header
      required: false
      description: >-
        The dated contract your code was written against. Without it you get
        2026-09-27; every response says which version served it.
      schema:
        type: string
        enum:
          - '2026-09-27'
        default: '2026-09-27'
  schemas:
    ApiErrorResponse:
      properties:
        error:
          $ref: '#/components/schemas/ApiErrorBody'
      type: object
      required:
        - error
      title: ApiErrorResponse
      description: Every /v1 error has this shape.
    ApiErrorBody:
      properties:
        type:
          type: string
          title: Type
          description: >-
            invalid_request_error, authentication_error, permission_error,
            not_found_error, conflict_error, rate_limit_error, or api_error
        code:
          type: string
          title: Code
          description: 'Machine-readable: branch on this, not on the message'
        message:
          type: string
          title: Message
        param:
          anyOf:
            - type: string
            - type: 'null'
          title: Param
          description: The request field the error is about, when there is one
        request_id:
          anyOf:
            - type: string
            - type: 'null'
          title: Request Id
          description: Also in the X-Request-Id header; quote it to support
        details:
          anyOf:
            - type: object
            - type: 'null'
          title: Details
          description: >-
            Extra data for some codes (e.g. the cameras a dataset does have, for
            camera_not_found)
      type: object
      required:
        - type
        - code
        - message
      title: ApiErrorBody
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: >-
        A Kite API key (`kite_...`), from **Platform API → Keys** in the
        dashboard.

````