diff --git a/taiga/projects/api.py b/taiga/projects/api.py
index 5f5532f8..d92806d7 100644
--- a/taiga/projects/api.py
+++ b/taiga/projects/api.py
@@ -60,6 +60,12 @@ class ProjectViewSet(ModelCrudViewSet):
         qs = models.Project.objects.all()
         return attach_votescount_to_queryset(qs, as_field="stars_count")
 
+    @list_route(methods=["GET"])
+    def by_slug(self, request):
+        slug = request.QUERY_PARAMS.get("slug", None)
+        project = get_object_or_404(models.Project, slug=slug)
+        return self.retrieve(request, pk=project.pk)
+
     @detail_route(methods=["GET", "PATCH"])
     def modules(self, request, pk=None):
         project = self.get_object()
diff --git a/taiga/projects/issues/api.py b/taiga/projects/issues/api.py
index 94dff493..cdae587f 100644
--- a/taiga/projects/issues/api.py
+++ b/taiga/projects/issues/api.py
@@ -153,6 +153,13 @@ class IssueViewSet(OCCResourceMixin, HistoryResourceMixin, WatchedResourceMixin,
         if obj.type and obj.type.project != obj.project:
             raise exc.PermissionDenied(_("You don't have permissions to set this type to this issue."))
 
+    @list_route(methods=["GET"])
+    def by_ref(self, request):
+        ref = request.QUERY_PARAMS.get("ref", None)
+        project_id = request.QUERY_PARAMS.get("project", None)
+        issue = get_object_or_404(models.Issue, ref=ref, project_id=project_id)
+        return self.retrieve(request, pk=issue.pk)
+
     @list_route(methods=["POST"])
     def bulk_create(self, request, **kwargs):
         serializer = serializers.IssuesBulkSerializer(data=request.DATA)
diff --git a/taiga/projects/permissions.py b/taiga/projects/permissions.py
index 126ac9c0..aaea97f4 100644
--- a/taiga/projects/permissions.py
+++ b/taiga/projects/permissions.py
@@ -40,6 +40,7 @@ class CanLeaveProject(PermissionComponent):
 
 class ProjectPermission(TaigaResourcePermission):
     retrieve_perms = HasProjectPerm('view_project')
+    by_slug_perms = HasProjectPerm('view_project')
     create_perms = IsAuthenticated()
     update_perms = IsProjectOwner()
     partial_update_perms = IsProjectOwner()
diff --git a/taiga/projects/serializers.py b/taiga/projects/serializers.py
index 5dbbba4c..71068bff 100644
--- a/taiga/projects/serializers.py
+++ b/taiga/projects/serializers.py
@@ -236,6 +236,7 @@ class ProjectSerializer(ModelSerializer):
     my_permissions = serializers.SerializerMethodField("get_my_permissions")
     i_am_owner = serializers.SerializerMethodField("get_i_am_owner")
     tags_colors = TagsColorsField(required=False)
+    users = serializers.SerializerMethodField("get_users")
 
     class Meta:
         model = models.Project
@@ -256,6 +257,9 @@ class ProjectSerializer(ModelSerializer):
             return is_project_owner(self.context["request"].user, obj)
         return False
 
+    def get_users(self, obj):
+        return UserSerializer(obj.members.all(), many=True).data
+
     def validate_total_milestones(self, attrs, source):
         """
         Check that total_milestones is not null, it's an optional parameter but
diff --git a/taiga/projects/tasks/api.py b/taiga/projects/tasks/api.py
index ed7cd208..a4e6361d 100644
--- a/taiga/projects/tasks/api.py
+++ b/taiga/projects/tasks/api.py
@@ -64,6 +64,13 @@ class TaskViewSet(OCCResourceMixin, HistoryResourceMixin, WatchedResourceMixin,
         if obj.milestone and obj.user_story and obj.milestone != obj.user_story.milestone:
             raise exc.WrongArguments(_("You don't have permissions for add/modify this task."))
 
+    @list_route(methods=["GET"])
+    def by_ref(self, request):
+        ref = request.QUERY_PARAMS.get("ref", None)
+        project_id = request.QUERY_PARAMS.get("project", None)
+        task = get_object_or_404(models.Task, ref=ref, project_id=project_id)
+        return self.retrieve(request, pk=task.pk)
+
     @list_route(methods=["POST"])
     def bulk_create(self, request, **kwargs):
         serializer = serializers.TasksBulkSerializer(data=request.DATA)
diff --git a/taiga/projects/userstories/api.py b/taiga/projects/userstories/api.py
index 166ddd26..796159e6 100644
--- a/taiga/projects/userstories/api.py
+++ b/taiga/projects/userstories/api.py
@@ -95,6 +95,13 @@ class UserStoryViewSet(OCCResourceMixin, HistoryResourceMixin, WatchedResourceMi
 
         super().post_save(obj, created)
 
+    @list_route(methods=["GET"])
+    def by_ref(self, request):
+        ref = request.QUERY_PARAMS.get("ref", None)
+        project_id = request.QUERY_PARAMS.get("project", None)
+        userstory = get_object_or_404(models.UserStory, ref=ref, project_id=project_id)
+        return self.retrieve(request, pk=userstory.pk)
+
     @list_route(methods=["POST"])
     def bulk_create(self, request, **kwargs):
         serializer = serializers.UserStoriesBulkSerializer(data=request.DATA)
diff --git a/taiga/projects/wiki/api.py b/taiga/projects/wiki/api.py
index 9970502d..8ce56eac 100644
--- a/taiga/projects/wiki/api.py
+++ b/taiga/projects/wiki/api.py
@@ -45,6 +45,13 @@ class WikiViewSet(OCCResourceMixin, HistoryResourceMixin, WatchedResourceMixin,
     filter_backends = (filters.CanViewWikiPagesFilterBackend,)
     filter_fields = ("project", "slug")
 
+    @list_route(methods=["GET"])
+    def by_slug(self, request):
+        slug = request.QUERY_PARAMS.get("slug", None)
+        project_id = request.QUERY_PARAMS.get("project", None)
+        wiki_page = get_object_or_404(models.WikiPage, slug=slug, project_id=project_id)
+        return self.retrieve(request, pk=wiki_page.pk)
+
     @list_route(methods=["POST"])
     def render(self, request, **kwargs):
         content = request.DATA.get("content", None)