---
title: "Changes to Start a sandbox"
method: POST
path: "/v2/sandboxes/boxes/{name}/start"
---

# Changes to Start a sandbox

`POST /v2/sandboxes/boxes/{name}/start`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 3 of 48 revisions.

- **2026-05-27** `a0acb3a6a101` — 2 warning, 9 info
- **2026-04-30** `99490d1e837e` — 1 warning, 2 info
- **2026-04-13** `e86be67718ee` — 1 info

## Changes

- **2026-05-27** `a0acb3a6a101` — 2 warning, 9 info
  - removed the optional property `expires_at` from the response with the `202` status
  - removed the optional property `ttl_seconds` from the response with the `202` status
  - added the optional property `created_by` to the response with the `202` status
  - added the optional property `delete_after_stop_seconds` to the response with the `202` status
  - added the optional property `detail/error_id` to the response with the `400` status
  - added the optional property `detail/error_id` to the response with the `403` status
  - added the optional property `detail/error_id` to the response with the `404` status
  - added the optional property `detail/error_id` to the response with the `500` status
  - added the optional property `proxy_config/callbacks/items/full_request` to the response with the `202` status
  - added the optional property `stopped_at` to the response with the `202` status
  - added the optional property `updated_by` to the response with the `202` status
- **2026-04-30** `99490d1e837e` — 1 warning, 2 info
  - removed the optional property `template_name` from the response with the `202` status
  - added the optional property `proxy_config/callbacks` to the response with the `202` status
  - added the optional property `size_class` to the response with the `202` status
- **2026-04-13** `e86be67718ee` — 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/langchain-ai/apis/langsmith/docs/v2/sandboxes/boxes/:name/start/post.md) · [API](https://skmtc.dev/langchain-ai/apis/langsmith.md) · [Page](https://skmtc.dev/langchain-ai/apis/langsmith/changes/v2/sandboxes/boxes/:name/start/post)