diff --git a/README.rst b/README.rst
index 82ddda0..da20cc3 100644
--- a/README.rst
+++ b/README.rst
@@ -62,7 +62,7 @@ Main features
 -   Extensible : easy to add more protocols or more base types.
 -   Framework independance : adapters are provided to easily integrate
     your API in any web framework, for example a wsgi container,
-    Pecan_, TurboGears_, cornice_...
+    Pecan_, TurboGears_, Flask_, cornice_...
 -   Very few runtime dependencies: webob, simplegeneric. Optionnaly lxml and
     simplejson if you need better performances.
 -   Integration in `Sphinx`_ for making clean documentation with
@@ -70,6 +70,7 @@ Main features
 
 .. _Pecan: http://pecanpy.org/
 .. _TurboGears: http://www.turbogears.org/
+.. _Flask: http://flask.pocoo.org/
 .. _cornice: http://pypi.python.org/pypi/cornice
 
 Install
diff --git a/doc/changes.rst b/doc/changes.rst
index 3037faf..a24b462 100644
--- a/doc/changes.rst
+++ b/doc/changes.rst
@@ -4,6 +4,8 @@ Changes
 next
 ----
 
+*   New Flask adapter: wsmeext.flask
+
 *   Fix: Submodules of wsmeext were missing in the packages.
 
 *   Fix: The demo app was still depending on the WSME-Soap package (which has
diff --git a/doc/integrate.rst b/doc/integrate.rst
index 00d2720..2a95fa7 100644
--- a/doc/integrate.rst
+++ b/doc/integrate.rst
@@ -110,6 +110,44 @@ Example
         print("Got a message: %s" % info.message)
     
 
+.. _adapter-flask:
+
+Flask
+-----
+
+    *"Flask is a microframework for Python based on Werkzeug, Jinja 2 and good intentions. And before you ask: It's BSD licensed! "*
+
+
+.. warning::
+
+    Flask support is limited to function signature handling. It does not
+    support additional protocols. This is a temporary limitation, if you have
+    needs on that matter please tell us at python-wsme@googlegroups.com.
+
+
+:mod:`wsmeext.flask` -- Flask adapter
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. module:: wsmeext.flask
+
+.. function:: signature(return_type, \*arg_types, \*\*options)
+
+    See @\ :func:`signature` for parameters documentation.
+
+    Can be used on a function before routing it with flask.
+
+Example
+~~~~~~~
+
+.. code-block:: python
+
+    from wsmeext.flask import signature
+
+    @app.route('/multiply')
+    @signature(int, int, int)
+    def multiply(a, b):
+        return a * b
+
 .. _adapter-pecan:
 
 Pecan
diff --git a/tests/test_flask.py b/tests/test_flask.py
index b1702b9..da9e1c6 100644
--- a/tests/test_flask.py
+++ b/tests/test_flask.py
@@ -9,6 +9,11 @@ class Model(Base):
     name = text
 
 
+class Criterion(Base):
+    op = text
+    attr = text
+    value = text
+
 test_app = Flask(__name__)
 
 
@@ -25,9 +30,13 @@ def divide_by_zero():
 
 
 @test_app.route('/models')
-@signature([Model])
-def list_models():
-    return [Model(name='first')]
+@signature([Model], [Criterion])
+def list_models(q=None):
+    if q:
+        name = q[0].value
+    else:
+        name = 'first'
+    return [Model(name=name)]
 
 
 @test_app.route('/models/<name>')
@@ -63,6 +72,14 @@ class FlaskrTestCase(unittest.TestCase):
         resp = self.app.get('/models')
         assert resp.status_code == 200
 
+    def test_array_parameter(self):
+        resp = self.app.get('/models?q.op=%3D&q.attr=name&q.value=second')
+        assert resp.status_code == 200
+        print resp.data
+        self.assertEquals(
+            resp.data, '[{"name": "second"}]'
+        )
+
     def test_post_model(self):
         resp = self.app.post('/models', data={"body.name": "test"})
         assert resp.status_code == 200
diff --git a/wsme/rest/args.py b/wsme/rest/args.py
index f88ec3b..7769e18 100644
--- a/wsme/rest/args.py
+++ b/wsme/rest/args.py
@@ -81,11 +81,19 @@ def from_params(datatype, params, path, hit_paths):
 
 @from_params.when_type(ArrayType)
 def array_from_params(datatype, params, path, hit_paths):
+    if hasattr(params, 'getall'):
+        # webob multidict
+        def getall(params, path):
+            return params.getall(path)
+    elif hasattr(params, 'getlist'):
+        # werkzeug multidict
+        def getall(params, path):  # noqa
+            return params.getlist(path)
     if path in params:
         hit_paths.add(path)
         return [
             from_param(datatype.item_type, value)
-            for value in params.getall(path)]
+            for value in getall(params, path)]
 
     if iscomplex(datatype.item_type):
         attributes = set()
@@ -99,7 +107,7 @@ def array_from_params(datatype, params, path, hit_paths):
             for attrdef in list_attributes(datatype.item_type):
                 attrpath = '%s.%s' % (path, attrdef.key)
                 hit_paths.add(attrpath)
-                attrvalues = params.getall(attrpath)
+                attrvalues = getall(params, attrpath)
                 if len(value) < len(attrvalues):
                     value[-1:] = [
                         datatype.item_type()
@@ -158,7 +166,9 @@ def args_from_args(funcdef, args, kwargs):
         newargs.append(from_param(argdef.datatype, arg))
     newkwargs = {}
     for argname, value in kwargs.items():
-        newkwargs[argname] = from_param(funcdef.get_arg(argname).datatype, value)
+        newkwargs[argname] = from_param(
+            funcdef.get_arg(argname).datatype, value
+        )
     return newargs, newkwargs