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Namespaces API

  • Tier: Free, Premium, Ultimate
  • Offering: GitLab.com, GitLab Self-Managed, GitLab Dedicated

Version history

  • Visibility of billing-related fields changed in GitLab 18.3 with a flag named restrict_namespace_api_billing_fields. Disabled by default.

Use this API to interact with namespaces, a special resource category used to organize users and groups. For more information, see namespaces.

This API uses Pagination to filter results.

List all namespaces

Version history

Lists all namespaces available to the current user. If the user is an administrator, this endpoint returns all namespaces in the instance.

GET /namespaces
Attribute Type Required Description
search string no Returns only namespaces that contain the specified value in their name or path.
owned_only boolean no If true, only returns namespaces by the current user.
top_level_only boolean no In GitLab 16.8 and later, if true, only returns top-level namespaces.
full_path_search boolean no If true, the search parameter is matched against the full path of the namespaces.

Example request:

curl --request GET \
  --header "PRIVATE-TOKEN: <your_access_token>" \
  --url "https://gitlab.example.com/api/v4/namespaces"

Example response:

[
  {
    "id": 1,
    "name": "user1",
    "path": "user1",
    "kind": "user",
    "full_path": "user1",
    "parent_id": null,
    "avatar_url": "https://secure.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon",
    "web_url": "https://gitlab.example.com/user1",
    "billable_members_count": 1,
    "plan": "ultimate",
    "end_date": null,
    "trial_ends_on": null,
    "trial": false,
    "root_repository_size": 100,
    "projects_count": 3
  },
  {
    "id": 2,
    "name": "group1",
    "path": "group1",
    "kind": "group",
    "full_path": "group1",
    "parent_id": null,
    "avatar_url": null,
    "web_url": "https://gitlab.example.com/groups/group1",
    "members_count_with_descendants": 2,
    "billable_members_count": 2,
    "plan": "ultimate",
    "end_date": null,
    "trial_ends_on": null,
    "trial": false,
    "root_repository_size": 100,
    "projects_count": 3
  },
  {
    "id": 3,
    "name": "bar",
    "path": "bar",
    "kind": "group",
    "full_path": "foo/bar",
    "parent_id": 9,
    "avatar_url": null,
    "web_url": "https://gitlab.example.com/groups/foo/bar",
    "members_count_with_descendants": 5,
    "billable_members_count": 5,
    "end_date": null,
    "trial_ends_on": null,
    "trial": false,
    "root_repository_size": 100,
    "projects_count": 3
  }
]

Additional attributes might be returned for Group owners or on GitLab.com:

[
  {
    ...
    "max_seats_used": 3,
    "max_seats_used_changed_at":"2025-05-15T12:00:02.000Z",
    "seats_in_use": 2,
    "projects_count": 1,
    "root_repository_size":0,
    "members_count_with_descendants":26,
    "plan": "free",
    ...
  }
]

Get details on a namespace

Gets details on a specified namespace.

GET /namespaces/:id
Attribute Type Required Description
id integer or string yes ID or URL-encoded path of the namespace.

Example request:

curl --request GET \
  --header "PRIVATE-TOKEN: <your_access_token>" \
  --url "https://gitlab.example.com/api/v4/namespaces/2"

Example response:

{
  "id": 2,
  "name": "group1",
  "path": "group1",
  "kind": "group",
  "full_path": "group1",
  "parent_id": null,
  "avatar_url": null,
  "web_url": "https://gitlab.example.com/groups/group1",
  "members_count_with_descendants": 2,
  "billable_members_count": 2,
  "max_seats_used": 0,
  "seats_in_use": 0,
  "plan": "default",
  "end_date": null,
  "trial_ends_on": null,
  "trial": false,
  "root_repository_size": 100,
  "projects_count": 3
}

Example request:

curl --header "PRIVATE-TOKEN: <your_access_token>" "https://gitlab.example.com/api/v4/namespaces/group1"

Example response:

{
  "id": 2,
  "name": "group1",
  "path": "group1",
  "kind": "group",
  "full_path": "group1",
  "parent_id": null,
  "avatar_url": null,
  "web_url": "https://gitlab.example.com/groups/group1",
  "members_count_with_descendants": 2,
  "billable_members_count": 2,
  "max_seats_used": 0,
  "seats_in_use": 0,
  "plan": "default",
  "end_date": null,
  "trial_ends_on": null,
  "trial": false,
  "root_repository_size": 100
}

Verify namespace availability

Verifies if a specified namespace already exists. If the namespace does exist, the endpoint suggests an alternate name.

GET /namespaces/:namespace/exists
Attribute Type Required Description
namespace string yes Path of the namespace.
parent_id integer no ID of the parent namespace. If unspecified, only returns top-level namespaces.

Example request:

curl --request GET \
  --header "PRIVATE-TOKEN: <your_access_token>" \
  --url "https://gitlab.example.com/api/v4/namespaces/my-group/exists?parent_id=1"

Example response:

{
    "exists": true,
    "suggests": [
        "my-group1"
    ]
}