diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..4597a01
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,48 @@
+[build-system]
+requires = ["setuptools>=61.0", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "stubgen"
+version = "0.1.0"
+description = "A CLI tool that automatically generates Python type stub files (.pyi) from untyped Python code"
+readme = "README.md"
+license = {text = "MIT"}
+requires-python = ">=3.9"
+classifiers = [
+    "Development Status :: 3 - Alpha",
+    "Intended Audience :: Developers",
+    "License :: OSI Approved :: MIT License",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+]
+dependencies = [
+    "click>=8.0",
+    "asttokens>=2.0",
+    "typing-extensions>=4.0",
+]
+
+[project.optional-dependencies]
+dev = [
+    "pytest>=7.0",
+    "pytest-cov",
+]
+
+[tool.stubgen]
+exclude_patterns = ["tests/*", "*/__pycache__/*", "*/.venv/*", "*/venv/*"]
+infer_depth = 3
+strict_mode = false
+interactive = false
+
+[project.scripts]
+stubgen = "stubgen.cli:main"
+
+[tool.setuptools.packages.find]
+include = ["stubgen*"]
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+python_files = ["test_*.py"]