diff --git a/garminexport/cli/backup.py b/garminexport/cli/backup.py
index 87ab0619..8e7fdb76 100644
--- a/garminexport/cli/backup.py
+++ b/garminexport/cli/backup.py
@@ -58,6 +58,18 @@ def parse_args() -> argparse.Namespace:
         help=("The maximum number of retries to make on failed attempts to fetch an activity. "
               "Exponential backoff will be used, meaning that the delay between successive attempts "
               "will double with every retry, starting at one second. DEFAULT: {}").format(DEFAULT_MAX_RETRIES))
+    parser.add_argument(
+        "--token",
+        default=None,
+        type=str,
+        help=("Authentication header token. Use with 'jwt_fgp' instead of username and password, for example "
+              "if login fails due to ReCaptcha."))
+    parser.add_argument(
+        "--jwt_fgp",
+        default=None,
+        type=str,
+        help=("Authentication JWT_FGP Cookie. Use with 'token' instead of username and password, for example "
+              "if login fails due to ReCaptcha."))
 
     return parser.parse_args()
 
@@ -69,6 +81,8 @@ def main():
     try:
         incremental_backup(username=args.username,
                            password=args.password,
+                           token=args.token,
+                           jwt_fgp=args.jwt_fgp,
                            backup_dir=args.backup_dir,
                            export_formats=args.format,
                            ignore_errors=args.ignore_errors,
diff --git a/garminexport/cli/get_activity.py b/garminexport/cli/get_activity.py
index c7ceff95..89fc8abd 100755
--- a/garminexport/cli/get_activity.py
+++ b/garminexport/cli/get_activity.py
@@ -43,6 +43,18 @@ def main():
         "--log-level", metavar="LEVEL", type=str,
         help="Desired log output level (DEBUG, INFO, WARNING, ERROR). Default: INFO.",
         default="INFO")
+    parser.add_argument(
+        "--token",
+        default=None,
+        type=str,
+        help=("Authentication header token. Use with 'jwt_fgp' instead of username and password, for example "
+              "if login fails due to ReCaptcha."))
+    parser.add_argument(
+        "--jwt_fgp",
+        default=None,
+        type=str,
+        help=("Authentication JWT_FGP Cookie. Use with 'token' instead of username and password, for example "
+              "if login fails due to ReCaptcha."))
 
     args = parser.parse_args()
 
@@ -60,10 +72,11 @@ def main():
         if not os.path.isdir(args.destination):
             os.makedirs(args.destination)
 
-        if not args.password:
+        prompt_password = not args.password and (not args.token or not args.jwt_fgp)
+        if prompt_password:
             args.password = getpass.getpass("Enter password: ")
 
-        with GarminClient(args.username, args.password) as client:
+        with GarminClient(args.username, args.password, args.token, args.jwt_fgp) as client:
             log.info("fetching activity %s ...", args.activity)
             summary = client.get_activity_summary(args.activity)
             # set up a retryer that will handle retries of failed activity downloads
diff --git a/garminexport/garminclient.py b/garminexport/garminclient.py
index dddd6eed..b1d1cfbc 100755
--- a/garminexport/garminclient.py
+++ b/garminexport/garminclient.py
@@ -66,7 +66,7 @@ class GarminClient(object):
 
     """
 
-    def __init__(self, username, password):
+    def __init__(self, username, password, token=None, jwt_fgp=None):
         """Initialize a :class:`GarminClient` instance.
 
         :param username: Garmin Connect user name or email address.
@@ -76,6 +76,8 @@ def __init__(self, username, password):
         """
         self.username = username
         self.password = password
+        self.token = token
+        self.jwt_fgp = jwt_fgp
 
         self.session = None
 
@@ -89,6 +91,11 @@ def __exit__(self, exc_type, exc_value, traceback):
 
     def connect(self):
         self.session = new_http_session()
+
+        if self.token is not None and self.jwt_fgp is not None:
+            self._authenticate_with_token()
+            return
+
         self._authenticate()
 
     def disconnect(self):
@@ -127,6 +134,17 @@ def _authenticate(self):
                 'Di-Backend': 'connectapi.garmin.com',
             })
 
+    def _authenticate_with_token(self):
+        log.info("authenticating user with provided token ...")
+        token_type = "Bearer"
+        self.session.headers.update(
+            {
+                "Authorization": f"{token_type} {self.token}",
+                "Di-Backend": "connectapi.garmin.com",
+                "NK": "NT",
+            }
+        )
+        self.session.cookies.update({"JWT_FGP": self.jwt_fgp})
 
     def _get_oauth_token(self):
         """Retrieve an OAuth token to use for the session.
diff --git a/garminexport/incremental_backup.py b/garminexport/incremental_backup.py
index 213b3058..a53305af 100644
--- a/garminexport/incremental_backup.py
+++ b/garminexport/incremental_backup.py
@@ -15,6 +15,8 @@
 
 def incremental_backup(username: str,
                        password: str = None,
+                       token: str = None,
+                       jwt_fgp: str = None,
                        backup_dir: str = os.path.join(".", "activities"),
                        export_formats: List[str] = None,
                        ignore_errors: bool = False,
@@ -43,7 +45,8 @@ def incremental_backup(username: str,
     if not os.path.isdir(backup_dir):
         os.makedirs(backup_dir)
 
-    if not password:
+    prompt_password = not password and (not token or not jwt_fgp)
+    if prompt_password:
         password = getpass.getpass("Enter password: ")
 
     # set up a retryer that will handle retries of failed activity downloads
@@ -51,7 +54,7 @@ def incremental_backup(username: str,
         delay_strategy=ExponentialBackoffDelayStrategy(initial_delay=timedelta(seconds=1)),
         stop_strategy=MaxRetriesStopStrategy(max_retries))
 
-    with GarminClient(username, password) as client:
+    with GarminClient(username, password, token, jwt_fgp) as client:
         # get all activity ids and timestamps from Garmin account
         log.info("scanning activities for %s ...", username)
         activities = set(retryer.call(client.list_activities))