---
title: "Changes to Create Environment"
method: POST
path: "/v1/environments?beta=true"
---

# Changes to Create Environment

`POST /v1/environments?beta=true`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 4 of 67 revisions.

- **2026-08-14** `e9d8152420c3` — 1 breaking
- **2026-05-19** `40e330aba8bc` — 1 breaking, 5 info
- **2026-04-09** `d87d3ef6f636` — 1 warning
- **2026-04-08** `69486316563e` — 1 info

## Changes

- **2026-08-14** `e9d8152420c3` — 1 breaking
  - response property `description` list-of-types was widened by adding types `null` to media type `application/json` of response `200`
- **2026-05-19** `40e330aba8bc` — 1 breaking, 5 info
  - added `#/components/schemas/BetaSelfHostedConfig` to the `config` response property `oneOf` list for the response status `200`
  - added the new optional request property `scope`
  - added `self_hosted` discriminator mapping keys to the `config/anyOf[subschema #1]/` request property
  - added `#/components/schemas/BetaSelfHostedConfigParams` to the `config/anyOf[subschema #1]/` request property `oneOf` list
  - added the optional property `scope` to the response with the `200` status
  - added `self_hosted` discriminator mapping keys to the `config` response property for the response status `200`
- **2026-04-09** `d87d3ef6f636` — 1 warning
  - deleted the `cookie` request parameter `sessionKey`
- **2026-04-08** `69486316563e` — 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/anthropics/apis/anthropic-api/docs/v1/environments?beta=true/post.md) · [API](https://skmtc.dev/anthropics/apis/anthropic-api.md) · [Page](https://skmtc.dev/anthropics/apis/anthropic-api/changes/v1/environments?beta=true/post)