diff --git a/openapi_first/__init__.pyi b/openapi_first/__init__.pyi
index 03c74ef..b86111d 100644
--- a/openapi_first/__init__.pyi
+++ b/openapi_first/__init__.pyi
@@ -5,5 +5,15 @@ from . import codegen as codegen
 from . import codegen_routes as codegen_routes
 from . import errors as errors
 from . import loader as loader
+from . import security as security
 
-__all__ = ["app", "binder", "loader", "client", "errors", "codegen", "codegen_routes"]
+__all__ = [
+    "app",
+    "binder",
+    "loader",
+    "client",
+    "errors",
+    "codegen",
+    "codegen_routes",
+    "security",
+]
diff --git a/openapi_first/cli.pyi b/openapi_first/cli.pyi
new file mode 100644
index 0000000..4379617
--- /dev/null
+++ b/openapi_first/cli.pyi
@@ -0,0 +1,7 @@
+from pathlib import Path
+
+DEFAULT_TEMPLATE: str
+
+def available_templates() -> list[str]: ...
+def copy_template(template: str, target_dir: Path) -> None: ...
+def main() -> None: ...
diff --git a/openapi_first/codegen.pyi b/openapi_first/codegen.pyi
new file mode 100644
index 0000000..c2e0371
--- /dev/null
+++ b/openapi_first/codegen.pyi
@@ -0,0 +1,11 @@
+from pathlib import Path
+
+from .codegen_routes import generate_routes
+
+def generate_models(
+    spec_path: Path,
+    output_path: Path,
+    pydantic_version: int = ...,
+) -> None: ...
+
+__all__ = ["generate_models", "generate_routes"]
diff --git a/openapi_first/codegen_routes.pyi b/openapi_first/codegen_routes.pyi
new file mode 100644
index 0000000..dce30f8
--- /dev/null
+++ b/openapi_first/codegen_routes.pyi
@@ -0,0 +1,9 @@
+from pathlib import Path
+
+def generate_routes(
+    spec_path: Path,
+    output_dir: Path,
+    *,
+    use_models: bool = ...,
+    models_module: str = ...,
+) -> list[Path]: ...
diff --git a/openapi_first/security.pyi b/openapi_first/security.pyi
new file mode 100644
index 0000000..d4ca76e
--- /dev/null
+++ b/openapi_first/security.pyi
@@ -0,0 +1,7 @@
+from typing import Any
+
+def parse_security_schemes(spec: dict[str, Any]) -> dict[str, dict[str, Any]]: ...
+def make_security_dependencies(
+    spec: dict[str, Any],
+    security_schemes: dict[str, dict[str, Any]],
+) -> dict[str, list[Any]]: ...
diff --git a/pyproject.toml b/pyproject.toml
index e4ce75b..3416309 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -102,7 +102,7 @@ Versions = "https://git.aetoskia.com/aetos/openapi-first/tags"
 packages = { find = { include = ["openapi_first*"] } }
 
 [tool.setuptools.package-data]
-openapi_first = ["py.typed", "templates/**/*"]
+openapi_first = ["py.typed", "templates/**/*", '\.pyi?$']
 
 
 [tool.pytest.ini_options]