Namespaces API

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

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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

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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.

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/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"
    ]
}