diff --git a/backend/api/auth.py b/backend/api/auth.py
index 0e166939..0c136235 100644
--- a/backend/api/auth.py
+++ b/backend/api/auth.py
@@ -66,16 +66,20 @@ async def check_failed_login(ip_address: str) -> None:
 
 async def set_failed_login(ip_address: str):
     ns = "login-failed-ip"
-    failed_attempts = await nebula.redis.incr(ns, ip_address)
+    failed_attempts_str = await nebula.redis.incr(ns, ip_address)
+    failed_attempts = int(failed_attempts_str) if failed_attempts_str else 0
+
     await nebula.redis.expire(
         ns, ip_address, 600
     )  # this is just for the clean-up, it cannot be used to reset the counter
 
     if failed_attempts > nebula.config.max_failed_login_attempts:
+        ban_time = nebula.config.failed_login_ban_time or 0
         await nebula.redis.set(
             "banned-ip-until",
             ip_address,
-            str(int(time.time() + nebula.config.failed_login_ban_time)),
+
+            str(time.time() + ban_time),
         )
 
 
@@ -84,7 +88,15 @@ async def clear_failed_login(ip_address: str):
 
 
 class LoginRequest(APIRequest):
-    """Login using a username and password"""
+    """Login using a username and password
+
+    This request will return an access token that can be used in the
+    Authorization header for the subsequent requests.
+    If the login fails, request will return 401 Unauthorized.
+
+    If the login fails too many (configurable) times,
+    the IP address will be banned for a certain amount of time (configurable).
+    """
 
     name: str = "login"
     response_model = LoginResponseModel
@@ -94,6 +106,7 @@ async def handle(
         request: Request,
         payload: LoginRequestModel,
     ) -> LoginResponseModel:
+
         if request is not None:
             await check_failed_login(get_real_ip(request))
 
@@ -113,7 +126,10 @@ async def handle(
 
 
 class LogoutRequest(APIRequest):
-    """Log out the current user"""
+    """Log out the current user.
+
+    This request will invalidate the access token used in the Authorization header.
+    """
 
     name: str = "logout"
     title: str = "Logout"
@@ -144,7 +160,7 @@ async def handle(
         self,
         request: PasswordRequestModel,
         user: CurrentUser,
-    ):
+    ) -> Response:
         if request.login:
             if not user.is_admin:
                 raise nebula.UnauthorizedException(
diff --git a/backend/api/delete.py b/backend/api/delete.py
index 18f14436..ef811efc 100644
--- a/backend/api/delete.py
+++ b/backend/api/delete.py
@@ -69,7 +69,7 @@ async def handle(
             case _:
                 # do not delete bins directly
                 raise nebula.NotImplementedException(
-                    f"Deleting {request.obejct_type} is not implemented"
+                    f"Deleting {request.object_type} is not implemented"
                 )
 
         # Delete simple objects
diff --git a/backend/api/jobs/jobs.py b/backend/api/jobs/jobs.py
index 24293304..27cb7d75 100644
--- a/backend/api/jobs/jobs.py
+++ b/backend/api/jobs/jobs.py
@@ -182,10 +182,10 @@ async def set_priority(id_job: int, priority: int, user: nebula.User) -> None:
 
 
 class JobsRequest(APIRequest):
-    """List and control jobs"""
+    """Get list of jobs, abort or restart them"""
 
     name: str = "jobs"
-    title: str = "Get list of jobs, abort or restart them"
+    title: str = "List and control jobs"
     response_model = JobsResponseModel
 
     async def handle(
diff --git a/backend/api/services.py b/backend/api/services.py
index 4ea905e1..b93f7b51 100644
--- a/backend/api/services.py
+++ b/backend/api/services.py
@@ -46,7 +46,7 @@ class ServicesResponseModel(ResponseModel):
 
 
 class Request(APIRequest):
-    """Get a list of objects"""
+    """List and control installed services."""
 
     name: str = "services"
     title: str = "Service control"
@@ -57,8 +57,6 @@ async def handle(
         request: ServiceRequestModel,
         user: CurrentUser,
     ) -> ServicesResponseModel:
-        """List and control installed services."""
-
         if request.stop:
             nebula.log.info(f"Stopping service {request.stop}", user=user.name)
             await nebula.db.execute(
diff --git a/backend/api/sessions.py b/backend/api/sessions.py
index 42800d7f..c598e3ea 100644
--- a/backend/api/sessions.py
+++ b/backend/api/sessions.py
@@ -12,6 +12,8 @@ class SessionsRequest(RequestModel):
 
 
 class Sessions(APIRequest):
+    """List user sessions."""
+
     name = "sessions"
     title = "List sessions"
     response_model = list[SessionModel]
@@ -21,7 +23,6 @@ async def handle(
         request: SessionsRequest,
         user: CurrentUser,
     ) -> list[SessionModel]:
-        """Create or update an object."""
 
         id_user = request.id_user
 
@@ -46,16 +47,22 @@ class InvalidateSessionRequest(RequestModel):
 
 
 class InvalidateSession(APIRequest):
+    """Invalidate a user session.
+
+    This endpoint is used to invalidate an user session. It can be used
+    to remotely log out a user. If the user is an admin, it can also be
+    used to log out other users.
+    """
+
     name = "invalidate_session"
-    title = "Invalidate session"
+    title = "Invalidate a session"
     responses = [204, 201]
 
     async def handle(
         self,
         payload: InvalidateSessionRequest,
         user: CurrentUser,
-    ) -> None:
-        """Create or update an object."""
+    ) -> Response:
 
         session = await Session.check(payload.token)
         if session is None:
diff --git a/backend/api/set.py b/backend/api/set.py
index 25934bd3..ac7bafc5 100644
--- a/backend/api/set.py
+++ b/backend/api/set.py
@@ -146,8 +146,10 @@ async def can_modify_object(obj, user: nebula.User):
 
 
 class OperationsRequest(APIRequest):
+    """Create or update multiple objects in one requests."""
+
     name: str = "ops"
-    title: str = "Create / update multiple objects at once"
+    title: str = "Save multiple objects"
     response_model = OperationsResponseModel
 
     async def handle(
@@ -155,7 +157,6 @@ async def handle(
         request: OperationsRequestModel,
         user: CurrentUser,
     ) -> OperationsResponseModel:
-        """Create or update multiple objects in one requests."""
 
         pool = await nebula.db.pool()
         result = []
@@ -264,8 +265,10 @@ async def handle(
 
 
 class SetRequest(APIRequest):
+    """Create or update an object."""
+
     name = "set"
-    title = "Create or update an object"
+    title = "Save an object"
     response_model = OperationResponseModel
 
     async def handle(
@@ -273,7 +276,6 @@ async def handle(
         request: OperationModel,
         user: CurrentUser,
     ) -> OperationResponseModel:
-        """Create or update an object."""
 
         operation = OperationsRequest()
         result = await operation.handle(
diff --git a/backend/api/solve.py b/backend/api/solve.py
index 074fb81c..aef79a1a 100644
--- a/backend/api/solve.py
+++ b/backend/api/solve.py
@@ -53,7 +53,7 @@ class SolveRequestModel(RequestModel):
 
 
 class Request(APIRequest):
-    """Browse the assets database."""
+    """Solve a rundown placeholder"""
 
     name: str = "solve"
     responses: list[int] = [200]
@@ -63,6 +63,8 @@ async def handle(
         request: SolveRequestModel,
         user: CurrentUser,
     ) -> Response:
+        # TODO: check permissions
+        assert user is not None
 
         solver = get_solver(request.solver)
 
diff --git a/backend/nebula/version.py b/backend/nebula/version.py
index bb788580..98665744 100644
--- a/backend/nebula/version.py
+++ b/backend/nebula/version.py
@@ -1 +1 @@
-__version__ = "6.0.4"
+__version__ = "6.0.4"
\ No newline at end of file
diff --git a/backend/server/endpoints.py b/backend/server/endpoints.py
index c51195e9..fee326cf 100644
--- a/backend/server/endpoints.py
+++ b/backend/server/endpoints.py
@@ -99,7 +99,7 @@ def install_endpoints(app: fastapi.FastAPI):
         app.router.add_api_route(
             route,
             endpoint.handle,  # type: ignore
-            name=endpoint.name,
+            name=endpoint.title or endpoint.name,
             operation_id=slugify(endpoint.name, separator="_"),
             methods=endpoint.methods,
             description=docstring,