diff --git a/isso/__init__.py b/isso/__init__.py
index 8965c0b..4cd1eef 100644
--- a/isso/__init__.py
+++ b/isso/__init__.py
@@ -21,6 +21,54 @@
 
 __version__ = '0.1'
 
+from werkzeug.routing import Map, Rule
+from werkzeug.serving import run_simple
+from werkzeug.wrappers import Request, Response
+from werkzeug.exceptions import HTTPException, NotFound, NotImplemented, InternalServerError
+
+from isso import admin, comments
+
+url_map = Map([
+    # moderation panel
+    Rule('/', endpoint='admin.index', methods=['GET', 'POST']),
+
+    # comments API
+    Rule('/comment/<string:path>/', endpoint='comments.comment', methods=['POST']),
+    Rule('/comment/<string:path>/<int:id>', endpoint='comments.comment',
+        methods=['GET', 'PUT', 'DELETE']),
+])
+
+
+class Isso:
+
+    def __init__(self, conf):
+
+        self.conf = conf
+
+    def dispatch(self, request, start_response):
+        adapter = url_map.bind_to_environ(request.environ)
+        try:
+            endpoint, values = adapter.match()
+            module, function = endpoint.split('.', 1)
+            handler = getattr(globals()[module], function)
+            return handler(self, request.environ, request, **values)
+        except NotFound, e:
+            return Response('Not Found', 404)
+        except HTTPException, e:
+            return e
+        except InternalServerError, e:
+            return Response(e, 500)
+
+    def wsgi_app(self, environ, start_response):
+        request = Request(environ)
+        response = self.dispatch(request, start_response)
+        return response(environ, start_response)
+
+    def __call__(self, environ, start_response):
+        return self.wsgi_app(environ, start_response)
+
 
 def main():
-    print "Hallo Welt!"
+
+    app = Isso(123)
+    run_simple('127.0.0.1', 8080, app)
diff --git a/isso/admin.py b/isso/admin.py
new file mode 100644
index 0000000..db4fd0d
--- /dev/null
+++ b/isso/admin.py
@@ -0,0 +1,6 @@
+
+from werkzeug.wrappers import Response
+
+
+def index(app, environ, request):
+    return Response('', 200)
diff --git a/isso/comments.py b/isso/comments.py
new file mode 100644
index 0000000..7e569c8
--- /dev/null
+++ b/isso/comments.py
@@ -0,0 +1,6 @@
+
+from werkzeug.wrappers import Response
+
+
+def comment(app, environ, request, path, id=None):
+    return Response('', 200)
diff --git a/setup.py b/setup.py
index 8aafc4b..f8aba95 100644
--- a/setup.py
+++ b/setup.py
@@ -28,7 +28,7 @@ setup(
         "Programming Language :: Python :: 2.6",
         "Programming Language :: Python :: 2.7"
     ],
-    install_requires=['flask'],
+    install_requires=['werkzeug'],
     entry_points={
         'console_scripts':
             ['isso = isso:main'],
diff --git a/specs/test_urls.py b/specs/test_urls.py
new file mode 100644
index 0000000..271bf42
--- /dev/null
+++ b/specs/test_urls.py
@@ -0,0 +1,13 @@
+
+from werkzeug.test import Client
+from werkzeug.wrappers import BaseResponse
+
+import isso
+
+client = Client(isso.Isso(123), BaseResponse)
+
+
+def test_200ok():
+
+    assert client.get('/').status_code == 200
+    assert client.get('/comment/asdf/123').status_code == 200