---
title: "Changes to Create a testbed"
method: POST
path: "/v0/projects/{project}/testbeds"
---

# Changes to Create a testbed

`POST /v0/projects/{project}/testbeds`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 5 of 194 revisions.

- **2026-03-23** `1634d744359e`: 2 info
- **2026-02-26** `e6055a86dc91`: 1 info
- **2026-02-22** `b7250beffe09`: 2 info
- **2025-08-10** `c2d6b1d67c04`: 1 info
- **2025-08-09** `ca83201e45e6`: 2 breaking, 1 warning

## Changes

- **2026-03-23** `1634d744359e`: 2 info
  - added the optional property `spec/allOf[#/components/schemas/JsonSpec]/sandbox` to the response with the `201` status
  - added the required property `spec/allOf[#/components/schemas/JsonSpec]/os` to the response with the `201` status
- **2026-02-26** `e6055a86dc91`: 1 info
  - added the optional property `spec/allOf[#/components/schemas/JsonSpec]/fallback` to the response with the `201` status
- **2026-02-22** `b7250beffe09`: 2 info
  - added the new optional request property `spec`
  - added the optional property `spec` to the response with the `201` status
- **2025-08-10** `c2d6b1d67c04`: 1 info
  - for the `path` request parameter `project`, the type was generalized from `string` to no type
- **2025-08-09** `ca83201e45e6`: 2 breaking, 1 warning
  - added `#/components/schemas/TestbedSlug` to the `slug` request property `allOf` list
  - the `slug` response's property type changed from `string` to no type for status `201`
  - removed `#/components/schemas/Slug` from the `slug` request property `allOf` list

---

[Operation](https://skmtc.dev/bencherdev/apis/bencher-api/docs/v0/projects/:project/testbeds/post.md) - [API](https://skmtc.dev/bencherdev/apis/bencher-api.md) - [Page](https://skmtc.dev/bencherdev/apis/bencher-api/changes/v0/projects/:project/testbeds/post)