diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8395236..bda9a40 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,7 +29,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.10', '3.11', '3.12', '3.13']
+        python-version: ['3.10', '3.11', '3.12', '3.13', '3.14']
     env:
       CLICK_TO_MCP_NO_LICENSE: "1"
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index ca30bfc..2a3f39f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@ All notable changes to click-to-mcp will be documented in this file.
 
 ### Added
 
+- Python 3.14 to CI test matrix and PyPI classifiers (#35)
 - npm wrapper (`package.json` + `cli.js`) for npm discoverability and publish workflow (#9)
 - Awesome Codex CLI listing badge (PR #29 merged)
 - `abortage/awesome-mcp` merged badge
diff --git a/click_to_mcp/server.py b/click_to_mcp/server.py
index 9da036b..9e44a4f 100644
--- a/click_to_mcp/server.py
+++ b/click_to_mcp/server.py
@@ -23,6 +23,12 @@ def _make_jsonrpc_response(request_id: Any, result: Any = None, error: dict | No
     return json.dumps(resp)
 
 
+def _write_response(response: str) -> None:
+    """Write a JSON-RPC response to stdout and flush."""
+    sys.stdout.write(response + "\n")
+    sys.stdout.flush()
+
+
 def serve_stdio(
     cli_group, name: str = "cli", description: str = "", prefix: str = "",
 ) -> None:
@@ -77,15 +83,13 @@ def serve_stdio(
                     },
                     "serverInfo": server_info,
                 })
-                sys.stdout.write(response + "\n")
-                sys.stdout.flush()
+                _write_response(response)
 
             elif method == "tools/list":
                 response = _make_jsonrpc_response(req_id, {
                     "tools": mcp_tool_list,
                 })
-                sys.stdout.write(response + "\n")
-                sys.stdout.flush()
+                _write_response(response)
 
             elif method == "tools/call":
                 tool_name = params.get("name", "")
@@ -97,8 +101,7 @@ def serve_stdio(
                         "message": f"Unknown tool: {tool_name}",
                     }
                     response = _make_jsonrpc_response(req_id, error=error)
-                    sys.stdout.write(response + "\n")
-                    sys.stdout.flush()
+                    _write_response(response)
                     continue
 
                 tool = tool_map[tool_name]
@@ -127,14 +130,12 @@ def serve_stdio(
                     }
                     response = _make_jsonrpc_response(req_id, result)
 
-                sys.stdout.write(response + "\n")
-                sys.stdout.flush()
+                _write_response(response)
 
             elif method == "ping":
                 # MCP spec: respond with empty result
                 response = _make_jsonrpc_response(req_id, {})
-                sys.stdout.write(response + "\n")
-                sys.stdout.flush()
+                _write_response(response)
 
             elif method == "notifications/initialized":
                 # No response needed for notifications
@@ -146,8 +147,7 @@ def serve_stdio(
                     "message": f"Method not found: {method}",
                 }
                 response = _make_jsonrpc_response(req_id, error=error)
-                sys.stdout.write(response + "\n")
-                sys.stdout.flush()
+                _write_response(response)
 
         except Exception as e:
             error = {
@@ -155,5 +155,4 @@ def serve_stdio(
                 "message": f"Internal error: {e}",
             }
             response = _make_jsonrpc_response(req_id, error=error)
-            sys.stdout.write(response + "\n")
-            sys.stdout.flush()
+            _write_response(response)
diff --git a/pyproject.toml b/pyproject.toml
index d7fd978..482de7b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,12 +19,14 @@ keywords = ["mcp", "click", "cli", "model-context-protocol", "ai", "discovery",
 classifiers = [
     "Development Status :: 4 - Beta",
     "Intended Audience :: Developers",
+    "License :: OSI Approved :: Apache Software License",
     "Topic :: Software Development :: Libraries :: Python Modules",
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
 ]
 
 [project.optional-dependencies]
diff --git a/tests/__init__.py b/tests/__init__.py
index e69de29..2a9ad73 100644
--- a/tests/__init__.py
+++ b/tests/__init__.py
@@ -0,0 +1 @@
+"""Tests for click-to-mcp — covers adapter, CLI, server, HTTP, and streamable HTTP transports."""