diff --git a/pyproject.toml b/pyproject.toml
index 2928107a..80293f29 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,7 +5,7 @@
 
 [tool.poetry]
     name = "royalnet"
-    version = "5.8.15"
+    version = "5.8.16"
     description = "A multipurpose bot and web framework"
     authors = ["Stefano Pigozzi <ste.pigozzi@gmail.com>"]
     license = "AGPL-3.0+"
diff --git a/royalnet/constellation/api/apidata.py b/royalnet/constellation/api/apidata.py
index 90c83002..f36ce92e 100644
--- a/royalnet/constellation/api/apidata.py
+++ b/royalnet/constellation/api/apidata.py
@@ -1,3 +1,4 @@
+from typing import *
 import logging
 from .apierrors import MissingParameterError
 from royalnet.backpack.tables.tokens import Token
@@ -18,6 +19,51 @@ class ApiData(dict):
     def __missing__(self, key):
         raise MissingParameterError(f"Missing '{key}'")
 
+    def str(self, key, optional=False) -> Optional[str]:
+        if optional:
+            return self.get(key)
+        else:
+            return self[key]
+
+    def int(self, key, optional=False) -> Optional[int]:
+        value = self.str(key, optional)
+        if value is None:
+            return None
+        try:
+            return int(value)
+        except ValueError:
+            raise BadRequestError(f"Could not parse the value `{value}` as an int.")
+
+    def float(self, key, optional=False) -> Optional[float]:
+        value = self.str(key, optional)
+        if value is None:
+            return None
+        try:
+            return float(value)
+        except ValueError:
+            raise BadRequestError(f"Could not parse the value `{value}` as a float.")
+
+    _bool_values = {
+        "true": True,
+        "t": True,
+        "yes": True,
+        "y": True,
+        "false": False,
+        "f": False,
+        "no": False,
+        "n": False
+    }
+
+    def bool(self, key, optional=False) -> Optional[bool]:
+        value = self.str(key, optional)
+        if value is None:
+            return None
+        value = value.lower()
+        try:
+            return self._bool_values[value]
+        except KeyError:
+            raise BadRequestError(f"Could not parse the value `{value}` as a bool.")
+
     async def token(self) -> Token:
         token = await Token.find(self.star.alchemy, self.session, self["token"])
         if token is None:
diff --git a/royalnet/version.py b/royalnet/version.py
index a63f7df8..7151772d 100644
--- a/royalnet/version.py
+++ b/royalnet/version.py
@@ -1 +1 @@
-semantic = "5.8.15"
+semantic = "5.8.16"