diff --git a/nylas/client/client.py b/nylas/client/client.py
index 9bc2f458..6f7ab174 100644
--- a/nylas/client/client.py
+++ b/nylas/client/client.py
@@ -152,6 +152,8 @@ def authentication_url(
         login_hint="",
         state="",
         scopes=("email", "calendar", "contacts"),
+        provider="",
+        redirect_on_error=None,
     ):
         args = {
             "redirect_uri": redirect_uri,
@@ -165,6 +167,16 @@ def authentication_url(
             if isinstance(scopes, str):
                 scopes = [scopes]
             args["scopes"] = ",".join(scopes)
+        if provider and provider in [
+            "icloud",
+            "gmail",
+            "office365",
+            "exchange",
+            "imap",
+        ]:
+            args["provider"] = provider
+        if redirect_on_error is not None and isinstance(redirect_on_error, bool):
+            args["redirect_on_error"] = "true" if redirect_on_error is True else "false"
 
         url = URLObject(self.authorize_url).add_query_params(args.items())
         return str(url)
diff --git a/tests/test_client.py b/tests/test_client.py
index 9d3ba21c..1eb6f4b8 100644
--- a/tests/test_client.py
+++ b/tests/test_client.py
@@ -143,6 +143,62 @@ def test_client_authentication_url_scopes_none(api_client, api_url):
     assert urls_equal(expected, actual)
 
 
+def test_client_authentication_url_optional_params(api_client, api_url):
+    expected = (
+        URLObject(api_url)
+        .with_path("/oauth/authorize")
+        .set_query_params(
+            [
+                ("login_hint", ""),
+                ("state", ""),
+                ("redirect_uri", "/redirect"),
+                ("response_type", "code"),
+                ("client_id", "None"),
+                ("scopes", "email"),
+                ("provider", "gmail"),
+                ("redirect_on_error", "false"),
+            ]
+        )
+    )
+    actual = URLObject(
+        api_client.authentication_url(
+            "/redirect", scopes="email", provider="gmail", redirect_on_error=False
+        )
+    )
+    assert urls_equal(expected, actual)
+
+
+def test_client_authentication_url_invalid_param_values(api_client, api_url):
+    expected = (
+        URLObject(api_url)
+        .with_path("/oauth/authorize")
+        .set_query_params(
+            [
+                ("login_hint", ""),
+                ("state", ""),
+                ("redirect_uri", "/redirect"),
+                ("response_type", "code"),
+                ("client_id", "None"),
+                ("scopes", "email"),
+            ]
+        )
+    )
+    actual = URLObject(
+        api_client.authentication_url("/redirect", scopes="email", provider="Google")
+    )
+    assert urls_equal(expected, actual)
+
+    expected2 = expected.set_query_param("provider", "gmail")
+
+    actual2 = URLObject(
+        api_client.authentication_url(
+            "/redirect", scopes="email", provider="gmail", redirect_on_error="true"
+        )
+    )
+
+    assert urls_equal(expected2, actual2)
+
+
 def test_client_token_for_code(mocked_responses, api_client, api_url):
     endpoint = re.compile(api_url + "/oauth/token")
     response_body = json.dumps({"access_token": "hooray"})