diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..ec1c50d
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,58 @@
+[build-system]
+requires = ["setuptools>=61.0", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "openapi-mock-generator"
+version = "0.1.0"
+description = "A CLI tool that generates realistic mock API responses from OpenAPI/Swagger specifications"
+readme = "README.md"
+requires-python = ">=3.11"
+license = {text = "MIT"}
+authors = [
+    {name = "OpenAPI Mock Generator Contributors"}
+]
+keywords = ["openapi", "mock", "api", "testing", "cli"]
+classifiers = [
+    "Development Status :: 4 - Beta",
+    "Intended Audience :: Developers",
+    "License :: OSI Approved :: MIT License",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+]
+
+dependencies = [
+    "click>=8.1.7",
+    "pyyaml>=6.0.1",
+    "jsonschema>=4.26.0",
+    "openapi-spec-validator>=0.7.1",
+    "faker>=24.9.0",
+    "requests>=2.31.0",
+]
+
+[project.optional-dependencies]
+dev = [
+    "pytest>=7.4.0",
+    "pytest-cov>=4.1.0",
+    "ruff>=0.1.0",
+]
+
+[project.scripts]
+openapi-mock = "src.__main__:main"
+
+[tool.setuptools.packages.find]
+where = ["."]
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+python_files = ["test_*.py"]
+python_functions = ["test_*"]
+
+[tool.ruff]
+line-length = 100
+target-version = "py311"
+
+[tool.ruff.lint]
+select = ["E", "F", "W", "I", "UP"]
+ignore = ["E501"]