---
title: "Get application by key"
method: GET
path: "/api/v2/applications/{applicationKey}"
tags: ["Applications (beta)"]
---

# Get application by key

`GET /api/v2/applications/{applicationKey}`

Retrieve an application by the application key.

### Expanding the application response

LaunchDarkly supports expanding the "Get application" response to include additional fields.

To expand the response, append the `expand` query parameter and include the following:

* `flags` includes details on the flags that have been evaluated by the application

For example, use `?expand=flags` to include the `flags` field in the response. By default, this field is **not** included in the response.

## Path parameters

- `applicationKey` string, string, required — The application key

## Query parameters

- `expand` string, string — A comma-separated list of properties that can reveal additional information in the response. Options: `flags`.

## Response `200`

Application response

- ApplicationRep
  - `flags` ApplicationFlagCollectionRep
    - `items` FlagListingRep[] — A list of the flags that have been evaluated by the application
      - `name` string, required — The flag name
      - `key` string, required — The flag key
      - `_links` object
      - `_site` Link
        - `href` string
        - `type` string
    - `totalCount` integer — The number of flags that have been evaluated by the application
    - `_links` object — The location and content type of related resources
  - `_access` Access
    - `denied` AccessDenied[], required
      - `action` string, required
      - `reason` AccessDeniedReason, required
        - `resources` string[] — Resource specifier strings
        - `notResources` string[] — Targeted resources are the resources NOT in this list. The <code>resources</code> and <code>notActions</code> fields must be empty to use this field.
        - `actions` ActionSpecifier[] — Actions to perform on a resource
        - `notActions` ActionSpecifier[] — Targeted actions are the actions NOT in this list. The <code>actions</code> and <code>notResources</code> fields must be empty to use this field.
        - `effect` 'allow' | 'deny', required — Whether this statement should allow or deny actions on the resources.
        - `role_name` string
    - `allowed` AccessAllowedRep[], required
      - `action` string, required
      - `reason` AccessAllowedReason, required
        - `resources` string[] — Resource specifier strings
        - `notResources` string[] — Targeted resources are the resources NOT in this list. The <code>resources</code> and <code>notActions</code> fields must be empty to use this field.
        - `actions` ActionSpecifier[] — Actions to perform on a resource
        - `notActions` ActionSpecifier[] — Targeted actions are the actions NOT in this list. The <code>actions</code> and <code>notResources</code> fields must be empty to use this field.
        - `effect` 'allow' | 'deny', required — Whether this statement should allow or deny actions on the resources.
        - `role_name` string
  - `_links` object — The location and content type of related resources
  - `_version` integer — Version of the application
  - `autoAdded` boolean, required — Whether the application was automatically created because it was included in a context when a LaunchDarkly SDK evaluated a feature flag, or was created through the LaunchDarkly UI or REST API.
  - `creationDate` integer
  - `description` string — The application description
  - `key` string, required — The unique identifier of this application
  - `kind` 'browser' | 'mobile' | 'server', required — To distinguish the kind of application
  - `_maintainer` MaintainerRep
    - `member` MemberSummary
      - `_links` object, required — The location and content type of related resources
      - `_id` string, required — The member's ID
      - `firstName` string — The member's first name
      - `lastName` string — The member's last name
      - `role` string, required — The member's base role. If the member has no additional roles, this role will be in effect.
      - `email` string, required — The member's email address
    - `team` MemberTeamSummaryRep
      - `customRoleKeys` string[], required — A list of keys of the custom roles this team has access to
      - `key` string, required — The team key
      - `_links` object
      - `name` string, required — The team name
  - `name` string, required — The name of the application

## Other responses

- `400` — Invalid request
- `401` — Invalid access token
- `403` — Forbidden
- `404` — Invalid resource identifier
- `429` — Rate limited

---

[API](https://skmtc.dev/launchdarkly/apis/launchdarkly-rest-api.md) · [All operations](https://skmtc.dev/launchdarkly/apis/launchdarkly-rest-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/launchdarkly/launchdarkly-rest-api/revisions/69c5c9aafe78/schema)