# Get Metadata Keys

Retrieve a paginated list of all available metadata keys.

Endpoint: GET /har/api/v3/metadata/keys
Version: 1.0
Security: x-api-key

## Query parameters:

  - `account_identifier` (string, required)
    Unique identifier for the Harness account.

  - `org_identifier` (string)
    Unique identifier for the organization within the account.

Example: default or engineering_org

  - `project_identifier` (string)
    Unique identifier for the project within the organization.

Example: my_project or frontend_services

  - `page` (integer)
    The page number for pagination (0-indexed).

Used to navigate through large result sets. Combined with size parameter
to control which subset of results to return.

Example: page=0 returns the first page, page=1 returns the second page

  - `size` (integer)
    The number of items to return per page.

Controls the page size for paginated results. 

Example: size=50 returns up to 50 items per page

  - `search_term` (string)
    Search term for filtering results.

Example: search_term=prod might match keys like "production", "prod-env", etc.

## Response 200 fields (application/json):

  - `hasMore` (boolean, required)
    True if more results exist after this page.
    Example: true

  - `page` (integer, required)
    The current page (0-indexed)

  - `size` (integer, required)
    Number of items per page
    Example: 20

  - `items` (array, required)

## Response default fields (application/json):

  - `error` (object, required)

  - `error.code` (string)
    For some errors that could be handled programmatically, a short string indicating the [error code](https://docs.stripe.com/error-codes) reported.

  - `error.message` (string)
    A human-readable message providing more details about the error. These messages can be shown to users.

  - `error.param` (string)
    If the error is parameter-specific, the parameter related to the error. For example, we can use this to display a message near the correct form field.

  - `error.type` (string, required)
    The type of error returned.
    Enum: "INVALID_REQUEST_ERROR", "AUTHENTICATION_ERROR", "PERMISSION_ERROR", "API_ERROR"