---
title: "Version Viewer"
method: GET
path: "/datasets/{dataset_id}/versions/{version}/viewer"
tags: ["datasets"]
---

# Version Viewer

`GET /datasets/{dataset_id}/versions/{version}/viewer`

## Request

- Base URL: `https://api.os3robotics.com` (the document declares no server; this is the origin it was published from)
- URL: `https://api.os3robotics.com/datasets/{dataset_id}/versions/{version}/viewer`
- Auth: one of:
  - HTTP bearer
  - HTTP bearer

The Rerun recordings of sealed LeRobot v3 `version`, one per episode, each with its size
and a URL under the version's read SAS (the one GET .../versions/{n} gives), with an
episode's `poster_url` (its cameras' first frames, a JPEG) and the version's
`blueprint_url` (the replay layout) when they were made, and whether each is a held-out
episode (`holdout`). `pending` until the recordings are made; a holdout dataset has none.

## Path parameters

- `dataset_id` string, uuid, required
- `version` integer, required

## Response `200`

Successful Response

- object

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/os3robotics/apis/os3-api.md) - [All operations](https://skmtc.dev/os3robotics/apis/os3-api/llms.txt) - [OpenAPI document](https://skmtc.dev/os3robotics/apis/os3-api/revisions/af32cd4f14bb?raw)