---
title: "Extend a sandbox's hard deadline."
method: POST
path: "/v1/sandboxes/{id}/extend"
tags: ["Sandboxes"]
---

# Extend a sandbox's hard deadline.

`POST /v1/sandboxes/{id}/extend`

## Request

- Base URL: `https://api.scalix.world`
- URL: `https://api.scalix.world/v1/sandboxes/{id}/extend`
- Auth: HTTP bearer

## Path parameters

- `id` string, required

## Request body

- SandboxExtendRequest: Request body for extending a sandbox's hard deadline.
  - `duration_ms` integer, required: Milliseconds to add to the current expiry.

## Response `200`

Updated sandbox

- SandboxInfo: A sandbox as returned by create/get/list.
  - `id` string, required
  - `runtime` string, required
  - `status` string, required: PROVISIONING | RUNNING | STOPPING | STOPPED | FAILED | EXPIRED
  - `status_reason` string, nullable: Human-readable reason for the current status (set on FAILED and idle-stop transitions).
  - `vcpus` integer, required
  - `memory_mb` integer, required
  - `disk_gb` integer, required
  - `expires_at` string, required

## Other responses

- `404`: Not found

---

[API](https://skmtc.dev/scalix/apis/scalix-cloud-api.md) · [All operations](https://skmtc.dev/scalix/apis/scalix-cloud-api/llms.txt) · [OpenAPI document](https://skmtc.dev/scalix/apis/scalix-cloud-api/revisions/2c04ca0a90bb?raw)