diff --git a/intavia_backend/intavia_cache.py b/intavia_backend/intavia_cache.py
new file mode 100644
index 0000000..f81b27a
--- /dev/null
+++ b/intavia_backend/intavia_cache.py
@@ -0,0 +1,15 @@
+"""Wrapper around the FastApiCache-2 library"""
+import os
+from fastapi_cache.decorator import cache
+
+
+def nocache(*args, **kwargs):
+    def decorator(func):
+        return func
+    return decorator
+
+# I have an .env file, and my get_settings() reads the .env file
+if os.environ.get("APIS_REDIS_CACHING", "True") == "True":
+    cache = cache
+else:
+    cache = nocache
\ No newline at end of file
diff --git a/intavia_backend/main_v1.py b/intavia_backend/main_v1.py
index 721a1fa..ff7bb76 100644
--- a/intavia_backend/main_v1.py
+++ b/intavia_backend/main_v1.py
@@ -22,7 +22,7 @@
 
 from fastapi_cache import FastAPICache
 from fastapi_cache.backends.redis import RedisBackend
-from fastapi_cache.decorator import cache
+from .intavia_cache import cache
 from .utils import get_query_from_triplestore
 
 
diff --git a/intavia_backend/main_v2.py b/intavia_backend/main_v2.py
index e73753c..4661578 100644
--- a/intavia_backend/main_v2.py
+++ b/intavia_backend/main_v2.py
@@ -3,7 +3,7 @@
 import math
 import dateutil
 from fastapi import APIRouter, Depends, HTTPException
-from fastapi_cache.decorator import cache
+from .intavia_cache import cache
 import requests
 
 from fastapi_versioning import version, versioned_api_route
diff --git a/intavia_backend/models_v2.py b/intavia_backend/models_v2.py
index 12a8e1f..e348206 100644
--- a/intavia_backend/models_v2.py
+++ b/intavia_backend/models_v2.py
@@ -85,6 +85,9 @@ def pp_id_provider(field, item, data):
             it = "/".join(it["id"].split("/")[:-1])
         else:
             it = it["id"]
+        test_uri_valid = re.match(r"^(https?://.+[a-z])([0-9]+$)", it)
+        if test_uri_valid: #TODO: this is a hack, should be fixed in the data (none-valid URIs should be removed)
+            it = f"{test_uri_valid.group(1)}/{test_uri_valid.group(2)}"
         data["url"] = it
         for k, v in linked_id_providers.items():
             if v["baseUrl"] in it:
@@ -200,7 +203,7 @@ class Config:
         RDF_utils_move_errors_to_top = True
 
 
-class LinkedId(BaseModel):
+class LinkedId(IntaViaBackendBaseModel):
     label: str
     url: HttpUrl