diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..d7365c6
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,102 @@
+[build-system]
+requires = ["setuptools>=45", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "email-sorter"
+version = "1.0.0"
+description = "Hybrid ML/LLM Email Classification System"
+readme = "README.md"
+requires-python = ">=3.8"
+license = {text = "MIT"}
+authors = [
+    {name = "Your Name", email = "your.email@example.com"}
+]
+
+keywords = ["email", "classification", "machine-learning", "llm", "nlp"]
+
+classifiers = [
+    "Development Status :: 3 - Alpha",
+    "Intended Audience :: Developers",
+    "Intended Audience :: End Users/Desktop",
+    "License :: OSI Approved :: MIT License",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.8",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
+]
+
+dependencies = [
+    "python-dotenv>=1.0.0",
+    "pyyaml>=6.0",
+    "pydantic>=2.0.0",
+    "google-api-python-client>=2.100.0",
+    "google-auth-httplib2>=0.1.1",
+    "google-auth-oauthlib>=1.1.0",
+    "msal>=1.24.0",
+    "imapclient>=2.3.1",
+    "scikit-learn>=1.3.0",
+    "lightgbm>=4.0.0",
+    "pandas>=2.0.0",
+    "numpy>=1.24.0",
+    "sentence-transformers>=2.2.0",
+    "ollama>=0.1.0",
+    "openai>=1.0.0",
+    "nltk>=3.8",
+    "beautifulsoup4>=4.12.0",
+    "lxml>=4.9.0",
+    "PyPDF2>=3.0.0",
+    "python-docx>=0.8.11",
+    "openpyxl>=3.0.10",
+    "click>=8.1.0",
+    "rich>=13.0.0",
+    "tqdm>=4.66.0",
+    "joblib>=1.3.0",
+    "tenacity>=8.2.0",
+]
+
+[project.optional-dependencies]
+dev = [
+    "pytest>=7.4.0",
+    "pytest-cov>=4.1.0",
+    "pytest-mock>=3.11.0",
+    "black>=23.0.0",
+    "isort>=5.12.0",
+    "flake8>=6.0.0",
+]
+gmail = [
+    "google-api-python-client>=2.100.0",
+    "google-auth-oauthlib>=1.1.0",
+]
+ollama = [
+    "ollama>=0.1.0",
+]
+openai = [
+    "openai>=1.0.0",
+]
+
+[project.urls]
+Homepage = "https://github.com/yourusername/email-sorter"
+Documentation = "https://github.com/yourusername/email-sorter"
+Repository = "https://github.com/yourusername/email-sorter"
+Issues = "https://github.com/yourusername/email-sorter/issues"
+
+[project.scripts]
+email-sorter = "src.cli:cli"
+
+[tool.black]
+line-length = 100
+target-version = ['py38', 'py39', 'py310', 'py311']
+
+[tool.isort]
+profile = "black"
+line_length = 100
+
+[tool.pytest.ini_options]
+minversion = "7.0"
+addopts = "-v --tb=short"
+testpaths = ["tests"]
+python_files = ["test_*.py"]