diff --git a/weboob/capabilities/bugtracker.py b/weboob/capabilities/bugtracker.py
new file mode 100644
index 00000000..f21893c9
--- /dev/null
+++ b/weboob/capabilities/bugtracker.py
@@ -0,0 +1,204 @@
+# -*- coding: utf-8 -*-
+
+# Copyright(C) 2011  Romain Bignon
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, version 3 of the License.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+from datetime import datetime
+
+from .base import IBaseCap, CapBaseObject
+
+
+__all__ = ['ICapBugTracker']
+
+
+class IssueError(Exception):
+    pass
+
+class Project(CapBaseObject):
+    def __init__(self, id, name):
+        CapBaseObject.__init__(self, id)
+        self.add_field('name', unicode, name)
+        self.add_field('members', list)
+        self.add_field('versions', list)
+        self.add_field('categories', list)
+        self.add_field('statuses', list)
+
+    def __repr__(self):
+        return '<Project %r>' % self.name
+
+    def find_user(self, id, name):
+        for user in self.members:
+            if user.id == id:
+                return user
+        if name is None:
+            return None
+        return User(id, name)
+
+    def find_version(self, id, name):
+        for version in self.versions:
+            if version.id == id:
+                return version
+        if name is None:
+            return None
+        return Version(id, name)
+
+    def find_status(self, name):
+        for status in self.statuses:
+            if status.name == name:
+                return status
+        if name is None:
+            return None
+        return None
+
+class User(CapBaseObject):
+    def __init__(self, id, name):
+        CapBaseObject.__init__(self, id)
+        self.add_field('name', unicode, name)
+
+    def __repr__(self):
+        return '<User %r>' % self.name
+
+class Version(CapBaseObject):
+    def __init__(self, id, name):
+        CapBaseObject.__init__(self, id)
+        self.add_field('name', unicode, name)
+
+    def __repr__(self):
+        return '<Version %r>' % self.name
+
+class Status(CapBaseObject):
+    (VALUE_NEW,
+     VALUE_PROGRESS,
+     VALUE_RESOLVED,
+     VALUE_REJECTED) = range(4)
+
+    def __init__(self, id, name, value):
+        CapBaseObject.__init__(self, id)
+        self.add_field('name', unicode, name)
+        self.add_field('value', int, value)
+
+    def __repr__(self):
+        return '<Status %r>' % self.name
+
+class Attachment(CapBaseObject):
+    def __init__(self, id):
+        CapBaseObject.__init__(self, id)
+        self.add_field('filename', basestring)
+        self.add_field('url', basestring)
+
+    def __repr__(self):
+        return '<Attachment %r>' % self.filename
+
+class Update(CapBaseObject):
+    def __init__(self, id):
+        CapBaseObject.__init__(self, id)
+        self.add_field('author', User)
+        self.add_field('date', datetime)
+        self.add_field('message', unicode)
+        self.add_field('attachments', (list,tuple))
+        self.add_field('changes', (list,tuple))
+
+    def __repr__(self):
+        return '<Update %r>' % self.id
+
+class Issue(CapBaseObject):
+    def __init__(self, id):
+        CapBaseObject.__init__(self, id)
+        self.add_field('project', Project)
+        self.add_field('title', unicode)
+        self.add_field('body', unicode)
+        self.add_field('creation', datetime)
+        self.add_field('updated', datetime)
+        self.add_field('attachments', (list,tuple))
+        self.add_field('history', (list,tuple))
+        self.add_field('author', User)
+        self.add_field('assignee', User)
+        self.add_field('category', unicode)
+        self.add_field('version', Version)
+        self.add_field('status', Status)
+
+class Query(CapBaseObject):
+    def __init__(self):
+        CapBaseObject.__init__(self, '')
+        self.add_field('project', unicode)
+        self.add_field('title', unicode)
+        self.add_field('author', unicode)
+        self.add_field('assignee', unicode)
+        self.add_field('version', unicode)
+        self.add_field('category', unicode)
+        self.add_field('status', unicode)
+
+class ICapBugTracker(IBaseCap):
+    def iter_issues(self, query):
+        """
+        Iter issues with optionnal patterns.
+
+        @param  query [Query]
+        @return [iter(Issue)] issues
+        """
+        raise NotImplementedError()
+
+    def get_issue(self, id):
+        """
+        Get an issue from its ID.
+
+        @return Issue
+        """
+        raise NotImplementedError()
+
+    def create_issue(self, project):
+        """
+        Create an empty issue on the given project.
+
+        @return [Issue]  the created issue.
+        """
+        raise NotImplementedError()
+
+    def post_issue(self, issue):
+        """
+        Post an issue to create or update it.
+        """
+        raise NotImplementedError()
+
+    def update_issue(self, issue, update):
+        """
+        Add an update to an issue.
+
+        @param issue [id,Issue]  issue or id of issue
+        @param update [Update]  an Update object
+        """
+        raise NotImplementedError()
+
+    def remove_issue(self, issue):
+        """
+        Remove an issue.
+        """
+        raise NotImplementedError()
+
+    def iter_projects(self):
+        """
+        Iter projects.
+
+        @return [iter(Project)] projects
+        """
+        raise NotImplementedError()
+
+    def get_project(self, id):
+        """
+        Get a project from its ID.
+
+        @return [Project]
+        """
+        raise NotImplementedError()