# List outside collaborators

> The people with a role on some of a workspace's repositories who are not its members, each with the repositories they can reach and their role on each.

<div class="g1t-endpoint"><span class="g1t-method" data-method="get">GET</span><code>/workspaces/{workspace}/outside_collaborators</code></div>

Owners only.

By username, each with the repositories they have a role on. Refused with `403` for anyone but an owner. See [Access and roles](/guides/access-and-roles/).

- **Authentication:** Required. Send an [access token](/reference/api/#authentication) as `Authorization: Bearer`.
- **MCP tool:** [`access`](/reference/mcp/#access) with `action` `list_outside_collaborators`, and the same inputs
- **Scope:** An access token needs [`access:read`](/guides/authentication/#scopes).

## Path parameters

| Name | Type | Required | Description |
| --- | --- | --- | --- |
| `workspace` | string | Yes | The workspace's slug, e.g. "flagon-io". |

## Example request

```sh
curl https://api.g1t.sh/workspaces/flagon-io/outside_collaborators \
  -H "Authorization: Bearer $G1T_TOKEN"
```

## Example response

A successful request answers `200` with:

```json
[
  {
    "username": "ada",
    "name": "Ada Lovelace",
    "avatar": null,
    "repos": [
      {
        "repo": "flagon-io/docs",
        "role": "write"
      },
      {
        "repo": "flagon-io/hello",
        "role": "triage"
      }
    ]
  }
]
```

## Errors

A failed request answers with one of these statuses and a body like `{"error": {"code": "not_found", "message": "Repository not found."}}`. See [errors](/reference/api/#errors).

| Status | Code | When |
| --- | --- | --- |
| 401 | `unauthenticated` | A token is required, or the one sent is not valid. |
| 403 | `forbidden` | The token is valid but not allowed to do this, such as a member-only change or an agent token outside its repository. |
| 404 | `not_found` | It does not exist, or you cannot see it. |
| 422 | `invalid` | The input is not valid. `message` says which field and why. |