---
title: "Add an existing account user to the workspace"
method: POST
path: "/v1/workspaces/{id}/members"
tags: ["workspaces"]
---

# Add an existing account user to the workspace

`POST /v1/workspaces/{id}/members`

## Request

- Base URL: `https://api.hyperresearch.ai`
- URL: `https://api.hyperresearch.ai/v1/workspaces/{id}/members`
- Auth: one of:
  - HTTP bearer
  - API key in cookie `hr_session`

No invitation email is sent in this wave: the email must already belong to a user in the same account. Owner/admin only; granting owner requires the owner role.

## Path parameters

- `id` string, required

## Request body

- AddWorkspaceMember
  - `email` string, email, required
  - `role` 'owner' | 'admin' | 'member'

## Response `201`

Added

- WorkspaceMember
  - `user_id` string, required
  - `email` string, required
  - `role` 'owner' | 'admin' | 'member', required
  - `created_at` string, required
  - `updated_at` string, required
  - `is_self` boolean, required

## Other responses

- `400`: Invalid request
- `401`: Authentication failed
- `403`: Insufficient scope or plan
- `404`: Not found
- `429`: Rate limited or over quota
- `500`: Internal error

---

[API](https://skmtc.dev/hyperresearch/apis/hyperresearch-cloud-api.md) · [All operations](https://skmtc.dev/hyperresearch/apis/hyperresearch-cloud-api/llms.txt) · [OpenAPI document](https://skmtc.dev/hyperresearch/apis/hyperresearch-cloud-api/revisions/726ef831ebf4?raw)