diff --git a/pyproject.toml b/pyproject.toml
index 6f44cf8..ed356bf 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "setuptools.build_meta"
 [project]
 name = "common"
 description = "Reusable code stubs"
-version = "0.1.2"
+version = "0.1.3"
 requires-python = ">=3.13"
 authors = [
   { name="BreakerBear", email="breakerbear@autistic.men" },
diff --git a/src/common/jsonrpc2.py b/src/common/jsonrpc2.py
index b370348..a1dd490 100644
--- a/src/common/jsonrpc2.py
+++ b/src/common/jsonrpc2.py
@@ -148,7 +148,12 @@ def define(method: str, handler: Callable[..., Any]):
 def remove(method: str) -> Callable[..., Any]:
     return handlers.pop(method)
 
-def run(logger: logging.Logger) -> str:
+def url():
+    if server is None: return None
+    endpoint = server.listeners[0]
+    return f'ws://{endpoint.address}:{endpoint.port}'
+
+def run(logger: logging.Logger):
     history = History()
     fmt = logger.handlers[0].formatter
     logger.addHandler(history)
@@ -156,6 +161,3 @@ def run(logger: logging.Logger) -> str:
 
     thread = Thread(target=lambda: trio.run(backend), daemon=True)
     thread.start()
-
-    endpoint = server.listeners[0]
-    return f'ws://{endpoint.address}:{endpoint.port}'