---
title: "Changes to Add a user to a space"
method: POST
path: "/v2/spaces/{space_id}/users"
---

# Changes to Add a user to a space

`POST /v2/spaces/{space_id}/users`

> Every recorded change to this endpoint, newest first.
> 16 revisions in range; 1 not diffed.

## Timeline

Changed in 1 of 16 revisions.

- **2026-08-07** `1e87d8a4cf69` — 1 breaking, 3 info

## Changes

- **2026-08-07** `1e87d8a4cf69` — 1 breaking, 3 info
  - removed `#/components/schemas/PredefinedRoleAssignment, #/components/schemas/CustomRoleAssignment` from the `role` request property `oneOf` list
  - mapped value for discriminator key `CUSTOM` changed from `#/components/schemas/CustomRoleAssignment` to `#/components/schemas/CustomRoleAssignmentRequest` for `role` request property
  - mapped value for discriminator key `PREDEFINED` changed from `#/components/schemas/PredefinedRoleAssignment` to `#/components/schemas/PredefinedRoleAssignmentRequest` for `role` request property
  - added `#/components/schemas/PredefinedRoleAssignmentRequest, #/components/schemas/CustomRoleAssignmentRequest` to the `role` request property `oneOf` list

---

[Operation](https://skmtc.dev/arize-ai/apis/arize-rest-api/docs/v2/spaces/:space_id/users/post.md) · [API](https://skmtc.dev/arize-ai/apis/arize-rest-api.md) · [Page](https://skmtc.dev/arize-ai/apis/arize-rest-api/changes/v2/spaces/:space_id/users/post)