Use hatchling

pyproject.toml

@@ -18,11 +18,8 @@ license = { text = "Apache-2.0" }
 fastmcp = "fastmcp.cli:app"
 
 [build-system]
-requires = ["setuptools>=45", "setuptools_scm[toml]>=6.2"]
-build-backend = "setuptools.build_meta"
-
-[tool.setuptools_scm]
-write_to = "src/fastmcp/_version.py"
+requires = ["hatchling>=1.21.0", "hatch-vcs>=0.4.0"]
+build-backend = "hatchling.build"
 
 [project.optional-dependencies]
 dev = [
@@ -39,3 +36,6 @@ dev = [
 [tool.pytest.ini_options]
 asyncio_mode = "auto"
 asyncio_default_fixture_loop_scope = "session"
+
+[tool.hatch.version]
+source = "vcs"

src/fastmcp/__init__.py

@@ -1,6 +1,8 @@
 """FastMCP - A more ergonomic interface for MCP servers."""
 
+from importlib.metadata import version
 from .server import FastMCP, Context
 from .utilities.types import Image
 
+__version__ = version("fastmcp")
 __all__ = ["FastMCP", "Context", "Image"]