diff --git a/src/netius/auth/address.pyi b/src/netius/auth/address.pyi
new file mode 100644
index 00000000..047d7924
--- /dev/null
+++ b/src/netius/auth/address.pyi
@@ -0,0 +1,8 @@
+from typing import Sequence
+
+from netius import Auth
+
+class AddressAuth(Auth):
+    def __init__(self, allowed: Sequence[str] = ..., *args, **kwargs) -> None: ...
+    @classmethod
+    def auth(cls, allowed: Sequence[str] = ..., *args, **kwargs) -> bool: ...
diff --git a/src/netius/auth/allow.pyi b/src/netius/auth/allow.pyi
new file mode 100644
index 00000000..83f67b0a
--- /dev/null
+++ b/src/netius/auth/allow.pyi
@@ -0,0 +1,4 @@
+from netius import Auth
+
+class AllowAuth(Auth):
+    pass
diff --git a/src/netius/auth/base.pyi b/src/netius/auth/base.pyi
index 450c6131..32dbaf60 100644
--- a/src/netius/auth/base.pyi
+++ b/src/netius/auth/base.pyi
@@ -1,13 +1,27 @@
-from typing import Literal
+from typing import Any, Literal, NoReturn, PathLike
 
-HashType = Literal["plain", "md5", "sha1", "sha256", "sha512"] 
+HashType = Literal["plain", "md5", "sha1", "sha256", "sha512"]
 
-class Auth(object):    
+class Auth:
+    def __init__(self, *args, **kwargs) -> None: ...
+    @classmethod
+    def auth(cls, *args, **kwargs) -> bool: ...
+    @classmethod
+    def meta(cls, *args, **kwargs) -> dict[str, Any]: ...
+    @classmethod
+    def auth_assert(cls, *args, **kwargs) -> NoReturn: ...
     @classmethod
     def verify(cls, encoded: str, decoded: str) -> bool: ...
-
     @classmethod
     def generate(cls, password: str, type: HashType = ..., salt: str = ...) -> str: ...
-
     @classmethod
-    def unpack(cls, password: str) -> tuple[HashType, str, str, str]: ...
+    def unpack(cls, password) -> tuple[HashType, str | None, str, str | None]: ...
+    @classmethod
+    def get_file(
+        cls, path: PathLike[str], cache: bool = ..., encoding: str | None = ...
+    ) -> str | bytes: ...
+    @classmethod
+    def is_simple(cls) -> bool: ...
+    def auth_i(self, *args, **kwargs) -> bool: ...
+    def auth_assert_i(self, *args, **kwargs) -> NoReturn: ...
+    def is_simple_i(self) -> bool: ...
diff --git a/src/netius/auth/deny.pyi b/src/netius/auth/deny.pyi
new file mode 100644
index 00000000..5670d4e5
--- /dev/null
+++ b/src/netius/auth/deny.pyi
@@ -0,0 +1,4 @@
+from netius import Auth
+
+class DenyAuth(Auth):
+    pass
diff --git a/src/netius/auth/dummy.pyi b/src/netius/auth/dummy.pyi
new file mode 100644
index 00000000..3122d000
--- /dev/null
+++ b/src/netius/auth/dummy.pyi
@@ -0,0 +1,6 @@
+from netius import Auth
+
+class DummyAuth(Auth):
+    def __init__(self, value: bool = ..., *args, **kwargs) -> None: ...
+    @classmethod
+    def auth(cls, value: bool = ..., *args, **kwargs) -> bool: ...
diff --git a/src/netius/auth/memory.pyi b/src/netius/auth/memory.pyi
new file mode 100644
index 00000000..29efe893
--- /dev/null
+++ b/src/netius/auth/memory.pyi
@@ -0,0 +1,25 @@
+from typing import Any
+
+from netius import Auth
+
+class MemoryAuth(Auth):
+    def __init__(
+        self, registry: dict[str, Any] | None = ..., *args, **kwargs
+    ) -> None: ...
+    @classmethod
+    def auth(
+        cls,
+        username: str,
+        password: str,
+        registry: dict[str, Any] | None = ...,
+        *args,
+        **kwargs
+    ) -> bool: ...
+    @classmethod
+    def meta(
+        cls, username: str, registry: dict[str, Any] | None = ..., *args, **kwargs
+    ) -> dict[str, Any]: ...
+    @classmethod
+    def get_registry(cls) -> dict[str, Any]: ...
+    @classmethod
+    def load_registry(cls) -> dict[str, Any]: ...
diff --git a/src/netius/auth/passwd.pyi b/src/netius/auth/passwd.pyi
new file mode 100644
index 00000000..d93b898d
--- /dev/null
+++ b/src/netius/auth/passwd.pyi
@@ -0,0 +1,13 @@
+from typing import PathLike
+
+from netius import Auth
+
+class PasswdAuth(Auth):
+    def __init__(self, path: PathLike[str] | None = ..., *args, **kwargs) -> None: ...
+    @classmethod
+    def auth(
+        cls, username: str, password: str, path: str = ..., *args, **kwargs
+    ) -> bool: ...
+    @classmethod
+    def get_passwd(cls, path: PathLike[str], cache: bool = ...) -> dict[str, str]: ...
+    def auth_i(self, username: str, password: str, *args, **kwargs) -> bool: ...
diff --git a/src/netius/auth/simple.pyi b/src/netius/auth/simple.pyi
new file mode 100644
index 00000000..08e07c08
--- /dev/null
+++ b/src/netius/auth/simple.pyi
@@ -0,0 +1,18 @@
+from typing import Sequence
+
+from netius import Auth
+
+class SimpleAuth(Auth):
+    def __init__(
+        self, username: str | None = ..., password: str | None = ..., *args, **kwargs
+    ) -> None: ...
+    @classmethod
+    def auth(
+        cls,
+        username: str,
+        password: str,
+        target: Sequence[str, str] | None = ...,
+        *args,
+        **kwargs
+    ) -> bool: ...
+    def auth_i(self, username: str, password: str, *args, **kwargs) -> bool: ...