---
title: "Upload a tar.zst archive and extract it"
method: POST
path: "/fs/upload_zstd"
---

# Upload a tar.zst archive and extract it

`POST /fs/upload_zstd`

Upload a tar.zst (tar archive compressed with zstd) file and extract its contents
to the specified destination path. Zstd offers significantly faster decompression
compared to zip.

## Response `201`

Archive uploaded and extracted successfully

## Other responses

- `400` — Bad Request
- `404` — Not Found
- `500` — Internal Server Error

## Changes

> 52 revisions in range; 4 could not be searched.

- **2026-01-16** `32c75432dbdc` — 1 info
  - endpoint added
- **2025-06-27** `f980a92ab23f` — 1 breaking
  - api path removed without deprecation

[Change history](https://skmtc.dev/kernel/apis/kernel-images-api/changes/fs/upload_zstd/post.md)

---

[API](https://skmtc.dev/kernel/apis/kernel-images-api.md) · [All operations](https://skmtc.dev/kernel/apis/kernel-images-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/kernel/kernel-images-api/revisions/7a641fa15a85/schema)