---
title: Create Service Account Workspace Member
url: https://platform.claude.com/docs/en/api/csharp/organization/workspaces/service_accounts/add
---

# Create Service Account Workspace Member

`ServiceAccountWorkspaceMember Organization.Workspaces.ServiceAccounts.Add(parameters, cancellationToken = default)`

**POST** `/v1/organizations/workspaces/{workspace_id}/service_accounts`

**Requires an OAuth access token with the `org:admin` scope**, from `ant auth login --scope org:admin` or a workload identity federation rule; Admin API keys are not accepted. See [Manage WIF with the Admin API](https://platform.claude.com/docs/en/manage-claude/wif-admin-api?sdk_languages=csharp).

Add a service account to a workspace with the given `workspace_role`.

The role determines what the service account can do in the workspace and
which workspace-scoped permissions it can be granted when authenticating
through federation. Every service account is already an implicit
`workspace_user` member of the default workspace; adding it explicitly
assigns a chosen role. If the service account is already an explicit
member of the workspace, its `workspace_role` is replaced with the
value supplied here. Archived workspaces return 400. Archived service
accounts cannot be added and are rejected.

## Parameters

- `ServiceAccountAddParams parameters`

  - `required string workspaceID` (path parameter)

    ID of the workspace.

  - `required string serviceAccountID`

    Tagged service account ID to add.

  - `required NoBillingWorkspaceRole workspaceRole`

    Role to assign to the service account in this workspace.

## Returns

- `class ServiceAccountWorkspaceMember`

  - `JsonElement Type = "service_account_workspace_member"`

  - `required string? CreatedByActorID`

    Tagged ID (`user_...`/`svac_...`) of the actor who created this membership.

  - `required bool? Implicit`

    True when this is the implicit default-workspace membership every service account has when no explicit membership exists. Implicit memberships have role `workspace_user` and cannot be removed.

  - `required string ServiceAccountID`

    Tagged service account ID (`svac_...`).

  - `required string WorkspaceID`

    Tagged workspace ID (`wrkspc_...`).

  - `required WorkspaceRole WorkspaceRole`

    Role of the service account in this workspace. Service accounts cannot hold the `workspace_billing` role.

    - `WorkspaceAdmin("workspace_admin")`

    - `WorkspaceBilling("workspace_billing")`

    - `WorkspaceDeveloper("workspace_developer")`

    - `WorkspaceRestrictedDeveloper("workspace_restricted_developer")`

    - `WorkspaceUser("workspace_user")`

## Example

```csharp
using System;
using Anthropic.Models.Organization.Workspaces;
using Anthropic.Models.Organization.Workspaces.ServiceAccounts;

ServiceAccountAddParams parameters = new()
{
    WorkspaceID = "workspace_id",
    ServiceAccountID = "service_account_id",
    WorkspaceRole = NoBillingWorkspaceRole.WorkspaceAdmin,
};

var serviceAccountWorkspaceMember = await client.Organization.Workspaces.ServiceAccounts.Add(parameters);

Console.WriteLine(serviceAccountWorkspaceMember);
```

### Response (200)

```json
{
  "created_by_actor_id": "created_by_actor_id",
  "implicit": true,
  "service_account_id": "service_account_id",
  "type": "service_account_workspace_member",
  "workspace_id": "workspace_id",
  "workspace_role": "workspace_admin"
}
```