diff --git a/api/keys.py b/api/keys.py
new file mode 100644
index 0000000..5eb978b
--- /dev/null
+++ b/api/keys.py
@@ -0,0 +1,75 @@
+import json
+import os
+import random
+from pymongo import MongoClient
+
+with open('./config.json', 'r') as file:
+    config = json.load(file)
+
+class Keys:
+    # --- START OF CONFIG ---
+    MONGO_URI = os.getenv('MONGO_URI') or config.get('MONGO_URI')
+    # --- END OF CONFIG ---
+
+    locked_keys = set()
+    cache = {}
+
+    # Initialize MongoDB
+    client = MongoClient(MONGO_URI)
+    db = client.get_database('keys_db')
+    collection = db['keys']
+
+    def __init__(self, key: str, model: str):
+        self.key = key
+        self.model = model
+        if not Keys.cache:
+            self._load_keys()
+
+    def _load_keys(self) -> None:
+        cursor = Keys.collection.find({}, {'_id': 0, 'key_value': 1, 'model': 1})
+        for doc in cursor:
+            key_value = doc['key_value']
+            model = doc['model']
+            Keys.cache.setdefault(model, set()).add(key_value)
+
+    def lock(self) -> None:
+        self.locked_keys.add(self.key)
+
+    def unlock(self) -> None:
+        self.locked_keys.remove(self.key)
+
+    def is_locked(self) -> bool:
+        return self.key in self.locked_keys
+
+    @staticmethod
+    def get(model: str) -> str:
+        key_candidates = list(Keys.cache.get(model, set()))
+        random.shuffle(key_candidates)
+
+        for key_candidate in key_candidates:
+            key = Keys(key_candidate, model)
+
+            if not key.is_locked():
+                key.lock()
+                return key.key
+
+        print(f"[WARN] No unlocked keys found for model '{model}' in get keys request!")
+
+    def delete(self) -> None:
+        Keys.collection.delete_one({'key_value': self.key, 'model': self.model})
+        # Update cache
+        try:
+            Keys.cache[self.model].remove(self.key)
+        except KeyError:
+            print(f"[WARN] Tried to remove a key from cache which was not present: {self.key}")
+
+    def save(self) -> None:
+        Keys.collection.insert_one({'key_value': self.key, 'model': self.model})
+        # Update cache
+        Keys.cache.setdefault(self.model, set()).add(self.key)
+
+# Usage example:
+# os.environ['MONGO_URI'] = "mongodb://localhost:27017"
+# key_instance = Keys("example_key", "example_model")
+# key_instance.save()
+# key_value = Keys.get("example_model")
diff --git a/api/main.py b/api/main.py
index c50a0a0..ed04c66 100644
--- a/api/main.py
+++ b/api/main.py
@@ -1,6 +1,7 @@
 import os
 import httpx
 import fastapi
+from keys import Keys
 
 from starlette.requests import Request
 from starlette.responses import StreamingResponse
@@ -31,33 +32,43 @@ async def startup_event():
     security.enable_proxy()
     security.ip_protection_check()
 
+    # Setup key cache
+    Keys()
+
 @app.get('/')
 async def root():
     """Returns the root endpoint."""
 
     return {
         'status': 'ok',
-        'discord': 'https://discord.gg/mX9BYdFeQF',
+        'discord': 'https://discord.gg/85gdcd57Xr',
         'github': 'https://github.com/Luna-OSS'
     }
 
 async def _reverse_proxy(request: Request):
     target_url = f'https://api.openai.com/v1/{request.url.path}'
-
+    key = Keys.get(request.body()['model'])
+    if not key:
+        return fastapi.responses.JSONResponse(
+            status_code=400,
+            content={
+                'error': 'No API Key for model given, please try again with a valid model.'
+            }
+        )
     request_to_api = target_api_client.build_request(
         method=request.method,
         url=target_url,
         headers={
-            'Authorization': 'Bearer ' + os.getenv('OPENAI_KEY'),
+            'Authorization': 'Bearer ' + key,
             'Content-Type': 'application/json'
         },
         content=await request.body(),
     )
 
     api_response = await target_api_client.send(request_to_api, stream=True)
-
+    
     print(f'[{request.method}] {request.url.path} {api_response.status_code}')
-
+    Keys(key).unlock()
     return StreamingResponse(
         api_response.aiter_raw(),
         status_code=api_response.status_code,
diff --git a/config.json b/config.json
new file mode 100644
index 0000000..fb89592
--- /dev/null
+++ b/config.json
@@ -0,0 +1,3 @@
+{
+    "MONGO_URI": ""
+}
diff --git a/setup.py b/setup.py
index 72e5d4c..8c27dd1 100644
--- a/setup.py
+++ b/setup.py
@@ -18,4 +18,3 @@ setuptools.setup(
         'Operating System :: OS Independent',
     ]
 )
-