# Update API Key

Update the settings of an existing API Key. You can use this to deactivate an API Key as well. API Keys are used as credentials to access the API and SMTP server. To obtain a valid apikey_ID, first call GET /v3/REST/apikey to list your API keys.

Endpoint: PUT /v3/REST/apikey/{apikey_ID}
Version: 1.0.0
Security: basicAuth

## Path parameters:

  - `apikey_ID` (integer, required)
    Unique numeric ID for the API Key you want to update.
    Example: 19000

## Request fields (application/json):

  - `Name` (string)
    Unique user-selected name for this API Key.

  - `ACL` (string)
    Access Control List. Indicates permissions attached to a resource.

  - `IsActive` (boolean)
    Indicates whether this API Key is active or not.

## Response 200 fields (application/json):

  - `Count` (integer)
    Indicates the number of objects in the Data array.

  - `Data` (array)
    A JSON array containing a list of objects returned by this endpoint.

  - `Data.APIKey` (string)
    The unique alphanumeric API Key itself.

  - `Data.CreatedAt` (string)
    Timestamp indicating when the API Key was created.

  - `Data.ID` (integer)
    Unique numeric ID for this API Key.

  - `Data.IsMaster` (boolean)
    Indicates whether this is the Primary API Key or not.

  - `Data.Name` (string)
    Unique user-selected name for this API Key.

  - `Data.QuarantineValue` (integer)
    Indicates the sending limitation applied on this API Key in terms of messages per hour, when the API Key is under quarantine. 0 means no limitation is applied.

  - `Data.Runlevel` (object)
    Runlevel, used to indicate data is migrated and reduced performance is expected..

Possible values:

- Normal
- Softlock
- Hardlock

Default value: Normal

  - `Data.SecretKey` (string)
    The unique alphanumeric Secret Key (password) linked to this API Key.

  - `Data.TrackHost` (string)
    Host to be used when tracking clicks, opens, unsubscribe requests for this API Key.

Default value: r.mailjet.com

  - `Data.UserID` (integer)
    User ID. The Primary API Key and all sub-account API Keys will have the same user ID.

  - `Data.ACL` (string)
    Access Control List. Indicates permissions attached to a resource.

  - `Data.IsActive` (boolean)
    Indicates whether this API Key is active or not.

  - `Data.Skipspamd` (boolean)
    Deprecated property.

  - `Total` (integer)
    Indicates the number of objects in the Data array.


## Response 400 fields

## Response 401 fields

## Response 403 fields

## Response 404 fields

## Response 429 fields

## Response 500 fields