diff --git a/services/authentication_service/.gitignore b/services/authentication_service/.gitignore
new file mode 100644
index 0000000..50602ac
--- /dev/null
+++ b/services/authentication_service/.gitignore
@@ -0,0 +1,11 @@
+# Files and directories created by pub
+.dart_tool/
+.packages
+# Remove the following pattern if you wish to check in your lock file
+pubspec.lock
+
+# Conventional directory for build outputs
+build/
+
+# Directory created by dartdoc
+doc/api/
diff --git a/services/authentication_service/CHANGELOG.md b/services/authentication_service/CHANGELOG.md
new file mode 100644
index 0000000..687440b
--- /dev/null
+++ b/services/authentication_service/CHANGELOG.md
@@ -0,0 +1,3 @@
+## 1.0.0
+
+- Initial version, created by Stagehand
diff --git a/services/authentication_service/README.md b/services/authentication_service/README.md
new file mode 100644
index 0000000..af388e5
--- /dev/null
+++ b/services/authentication_service/README.md
@@ -0,0 +1,4 @@
+A sample command-line application.
+
+Created from templates made available by Stagehand under a BSD-style
+[license](https://github.com/dart-lang/stagehand/blob/master/LICENSE).
diff --git a/services/authentication_service/analysis_options.yaml b/services/authentication_service/analysis_options.yaml
new file mode 100644
index 0000000..a686c1b
--- /dev/null
+++ b/services/authentication_service/analysis_options.yaml
@@ -0,0 +1,14 @@
+# Defines a default set of lint rules enforced for
+# projects at Google. For details and rationale,
+# see https://github.com/dart-lang/pedantic#enabled-lints.
+include: package:pedantic/analysis_options.yaml
+
+# For lint rules and documentation, see http://dart-lang.github.io/linter/lints.
+# Uncomment to specify additional rules.
+# linter:
+#   rules:
+#     - camel_case_types
+
+analyzer:
+#   exclude:
+#     - path/to/excluded/files/**
diff --git a/services/authentication_service/bin/main.dart b/services/authentication_service/bin/main.dart
new file mode 100644
index 0000000..dcd4654
--- /dev/null
+++ b/services/authentication_service/bin/main.dart
@@ -0,0 +1,5 @@
+import 'package:authentication_service/authentication_service.dart' as authentication_service;
+
+main(List<String> arguments) {
+  print('Hello world: ${authentication_service.calculate()}!');
+}
diff --git a/services/authentication_service/lib/authentication_service.dart b/services/authentication_service/lib/authentication_service.dart
new file mode 100644
index 0000000..f64ad72
--- /dev/null
+++ b/services/authentication_service/lib/authentication_service.dart
@@ -0,0 +1,3 @@
+int calculate() {
+  return 6 * 7;
+}
diff --git a/services/authentication_service/pubspec.yaml b/services/authentication_service/pubspec.yaml
new file mode 100644
index 0000000..69c2dac
--- /dev/null
+++ b/services/authentication_service/pubspec.yaml
@@ -0,0 +1,15 @@
+name: authentication_service
+description: A sample command-line application.
+# version: 1.0.0
+# homepage: https://www.example.com
+# author: kevin <email@example.com>
+
+environment:
+  sdk: '>=2.1.0 <3.0.0'
+
+#dependencies:
+#  path: ^1.4.1
+
+dev_dependencies:
+  pedantic: ^1.0.0
+  test: ^1.0.0
diff --git a/services/authentication_service/test/authentication_service_test.dart b/services/authentication_service/test/authentication_service_test.dart
new file mode 100644
index 0000000..207b530
--- /dev/null
+++ b/services/authentication_service/test/authentication_service_test.dart
@@ -0,0 +1,8 @@
+import 'package:authentication_service/authentication_service.dart';
+import 'package:test/test.dart';
+
+void main() {
+  test('calculate', () {
+    expect(calculate(), 42);
+  });
+}