diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..a98ce3a
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,74 @@
+[build-system]
+requires = ["setuptools>=61.0", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "codebase-knowledge-graph-cli"
+version = "0.1.0"
+description = "A CLI tool that analyzes codebases and generates interactive knowledge graphs showing code relationships, dependencies, and architecture"
+readme = "README.md"
+requires-python = ">=3.9"
+license = {text = "MIT"}
+authors = [
+    {name = "Codebase Knowledge Graph Contributors"}
+]
+keywords = ["code-analysis", "knowledge-graph", "cli", "dependency-analysis", "visualization"]
+classifiers = [
+    "Development Status :: 4 - Beta",
+    "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 = [
+    "tree-sitter>=0.23.1",
+    "tree-sitter-languages>=1.10.0",
+    "networkx>=3.3",
+    "graphviz>=0.20.3",
+    "click>=8.1.7",
+    "rich>=13.7.1",
+    "pyyaml>=6.0.1",
+    "tqdm>=4.66.1",
+]
+
+[project.optional-dependencies]
+dev = [
+    "pytest>=7.4.0",
+    "pytest-cov>=4.1.0",
+    "mypy>=1.7.0",
+    "flake8>=6.1.0",
+    "black>=23.11.0",
+]
+
+[project.scripts]
+codegraph = "src.cli:main"
+
+[tool.setuptools.packages.find]
+where = ["src"]
+include = ["src.*"]
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+python_files = ["test_*.py"]
+python_functions = ["test_*"]
+addopts = "-v --tb=short"
+
+[tool.mypy]
+python_version = "3.9"
+warn_return_any = true
+warn_unused_configs = true
+ignore_missing_imports = true
+
+[tool.black]
+line-length = 100
+target-version = ["py39", "py310", "py311", "py312"]
+include = "\\.pyi?$"
+
+[tool.flake8]
+max-line-length = 100
+exclude = [".git", "__pycache__", "build", "dist", "*.egg-info"]
+per-file-ignores = ["__init__.py: F401"]