# Log in to the Masking Engine with an OAuth2 access token from a customer's Authorization Server.

Endpoint: POST /oauth2-login
Version: 5.1.43
Security: 

## Response 200 fields (application/json):

  - `Authorization` (string)
    The Authorization token to be provided in the headers of subsequent endpoint calls. Note that the timeout for the Authorization token is controlled by the 'API_AUTHORIZATION_TIMEOUT' property.
    Example: "415aac5d-SOME-RANDOM-STRING-af6cf70dc49e"


## Response 401 fields