diff --git a/pyproject.toml b/pyproject.toml
index cd8a069..f1ca813 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "setuptools.build_meta"
 [project]
 name = "common"
 description = "Commonly reusable code"
-version = "0.1.18"
+version = "0.1.19"
 requires-python = ">=3.13"
 authors = [
   { name="BreakerBear", email="breakerbear@autistic.men" },
diff --git a/src/common/jsonrpc2/server.py b/src/common/jsonrpc2/server.py
index 259c061..cc231c6 100644
--- a/src/common/jsonrpc2/server.py
+++ b/src/common/jsonrpc2/server.py
@@ -101,6 +101,7 @@ class History(logging.Handler):
 class Server(ThreadingHTTPServer):
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
+        self.application: str
         self.encoding: str
         self.handlers = dict()
 
@@ -132,6 +133,11 @@ class RequestHandler(BaseHTTPRequestHandler):
         self.end_headers()
         self.wfile.write(response)
 
+    def do_HEAD(self):
+        self.send_response(200)
+        self.send_header('X-Powered-By', app) if (app := self.server.application) else None
+        self.end_headers()
+
     def do_POST(self, request=None):
         try:
             size = int(self.headers.get('Content-Length', '0'))
@@ -160,27 +166,26 @@ class ServiceProvider:
     def __init__(self, options):
         self.options = dataclasses.asdict(options)
         self.server = Server((self.options['host'], self.options['port']), self.options['handler'])
+        self.server.application = self.options['application']
         self.server.encoding = self.options['encoding']
 
-    @classmethod
-    def default(cls):
+        if not self.options['setup']: return
         import sys, _thread as t
         logger = logging.getLogger()
         history = History()
         logger.addHandler(history)
-        opts = cls.Options()
-        self = cls(opts)
         self.set('logs', lambda: history.truncate())
         self.set('exit', lambda: (t.interrupt_main(), sys.exit(0)))
-        return self
 
     @dataclasses.dataclass
     class Options:
         host        : str       = '127.0.0.1'
         port        : int       = 0
+        setup       : bool      = True
         handler     : type      = RequestHandler
         encoding    : str       = 'UTF-8'
         interval    : float     = 0.2
+        application : str       = ''
 
     def add(self, *handlers: Callable[..., Any], pairs: Iterable[tuple[str, Callable[..., Any]]] = None):
         for handler in handlers: self.set(handler.__name__, handler)