---
title: "Create Workspace Member"
method: POST
path: "/v1/organizations/workspaces/{workspace_id}/members"
---

# Create Workspace Member

`POST /v1/organizations/workspaces/{workspace_id}/members`

## Request

- Base URL: `https://api.anthropic.com`
- URL: `https://api.anthropic.com/v1/organizations/workspaces/{workspace_id}/members`
- Auth: none declared

## Path parameters

- `workspace_id` string, required: ID of the Workspace.

## Headers

- `anthropic-version` string: The version of the Claude API you want to use. Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning).

## Request body

- CreateWorkspaceMemberParams
  - `user_id` string, required: ID of the User.
  - `workspace_role` 'workspace_admin' | 'workspace_developer' | 'workspace_restricted_developer' | 'workspace_user', required

## Response `200`

Successful Response

- WorkspaceMemberSchema
  - `type` 'workspace_member', required: Object type. For Workspace Members, this is always `"workspace_member"`.
  - `user_id` string, required: ID of the User.
  - `workspace_id` string, required: ID of the Workspace.
  - `workspace_role` 'workspace_admin' | 'workspace_billing' | 'workspace_developer' | 'workspace_restricted_developer' | 'workspace_user', required

## Other responses

- `400`: Invalid argument - The client specified an invalid argument
- `401`: Unauthenticated - The request does not have valid authentication credentials
- `403`: Permission denied - The caller does not have permission to execute the specified operation
- `404`: Not found - Some requested entity was not found
- `408`: Deadline exceeded - The deadline expired before the operation could complete
- `409`: Aborted - The operation was aborted due to concurrency issue
- `412`: Failed precondition - Operation was rejected because the system is not in required state
- `413`: Out of range - Operation was attempted past the valid range
- `429`: Resource exhausted - Some resource has been exhausted (rate limiting)
- `431`: Request header fields too large - Request metadata was too large
- `499`: Cancelled - The operation was cancelled by the client
- `500`: Internal - Internal server error
- `501`: Unimplemented - The operation is not implemented or supported
- `503`: Unavailable - The service is currently unavailable
- `504`: Deadline exceeded - Upstream service did not respond in time
- `529`: Overloaded - The service is temporarily overloaded

## Changes

- **2026-10-09** `a71b45011694`: 1 breaking, 5 info
  - the `error` response's property type changed from no type to `object` for status `400`
  - added the optional property `error/details` to the response with the `400` status
  - removed discriminator from `error` response property for the response status `400`
  - removed `#/components/schemas/InvalidRequestError, #/components/schemas/AuthenticationError, #/components/schemas/BillingError, #/components/schemas/PermissionError, #/components/schemas/NotFoundError, #/components/schemas/RateLimitError, #/components/schemas/GatewayTimeoutError, #/components/schemas/APIError, #/components/schemas/OverloadedError` from the `error` response property `oneOf` list for the response status `400`
  - …2 more
- **2026-09-30** `51c5260134e8`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/anthropics/apis/anthropic-api/changes/v1/organizations/workspaces/:workspace_id/members/post.md)

---

[API](https://skmtc.dev/anthropics/apis/anthropic-api.md) - [All operations](https://skmtc.dev/anthropics/apis/anthropic-api/llms.txt) - [OpenAPI document](https://skmtc.dev/anthropics/apis/anthropic-api/revisions/328591af84ad?raw)