diff --git a/src/mock_vws/_httpx2_mock_server/decorators.py b/src/mock_vws/_httpx2_mock_server/decorators.py
index b9444bce6..d2d29e9a8 100644
--- a/src/mock_vws/_httpx2_mock_server/decorators.py
+++ b/src/mock_vws/_httpx2_mock_server/decorators.py
@@ -285,10 +285,7 @@ def _mock_routes(
         for route in api.routes:
             url_pattern = base_url.rstrip("/") + route.path_pattern + "$"
             compiled_url_pattern = re.compile(pattern=url_pattern)
-            handler: _Handler = getattr(  # pylint: disable=bad-builtin
-                api,
-                route.route_name,
-            )  # ty: ignore[unsound-assignment]
+            handler = route.handler
             httpx2_handler = delayed_httpx2_handler(
                 handler=_httpx2_handler(handler=handler, base_path=base_path),
                 delay_seconds=response_delay_seconds,
diff --git a/src/mock_vws/_mock_common.py b/src/mock_vws/_mock_common.py
index 000ba2591..c331cdf9a 100644
--- a/src/mock_vws/_mock_common.py
+++ b/src/mock_vws/_mock_common.py
@@ -4,8 +4,9 @@
 import email.utils
 import json
 import uuid
-from collections.abc import Iterable, Mapping
+from collections.abc import Callable, Iterable, Mapping
 from dataclasses import dataclass
+from functools import partial
 from typing import Any, Final, override
 
 from beartype import beartype
@@ -71,22 +72,51 @@ class RequestData:
     body: bytes
 
 
+type RouteHandler = Callable[
+    [RequestData],
+    tuple[int, Mapping[str, str], str | bytes],
+]
+
+
 @beartype
 @dataclass(frozen=True, kw_only=True)
 class Route:
     """A representation of a VWS route.
 
     Args:
-        route_name: The name of the method.
+        handler: The callback which handles the route.
         path_pattern: The end part of a URL pattern. E.g. `/targets` or
             `/targets/.+`.
         http_methods: HTTP methods that map to the route function.
     """
 
-    route_name: str
+    handler: RouteHandler
+    path_pattern: str
+    http_methods: Iterable[str]
+
+
+@beartype
+@dataclass(frozen=True, kw_only=True)
+class RouteDefinition[API]:
+    """An API route whose handler has not yet been bound to an
+    instance.
+    """
+
+    handler: Callable[
+        [API, RequestData],
+        tuple[int, Mapping[str, str], str | bytes],
+    ]
     path_pattern: str
     http_methods: Iterable[str]
 
+    def bind(self, *, api: API) -> Route:
+        """Bind the route handler to an API instance."""
+        return Route(
+            handler=partial(self.handler, api),
+            path_pattern=self.path_pattern,
+            http_methods=self.http_methods,
+        )
+
 
 @beartype
 def _upload_order_key(target: ImageTarget) -> tuple[datetime.datetime, str]:
diff --git a/src/mock_vws/_requests_mock_server/mock_web_query_api.py b/src/mock_vws/_requests_mock_server/mock_web_query_api.py
index 9362f2bfb..e69998116 100644
--- a/src/mock_vws/_requests_mock_server/mock_web_query_api.py
+++ b/src/mock_vws/_requests_mock_server/mock_web_query_api.py
@@ -7,11 +7,10 @@
 import email.utils
 from collections.abc import Callable, Iterable, Mapping
 from http import HTTPMethod, HTTPStatus
-from typing import ParamSpec, Protocol, runtime_checkable
 
 from beartype import beartype
 
-from mock_vws._mock_common import RequestData, Route
+from mock_vws._mock_common import RequestData, Route, RouteDefinition
 from mock_vws._query_tools import (
     get_query_match_response_text,
 )
@@ -23,21 +22,12 @@
 from mock_vws.image_matchers import ImageMatcher
 from mock_vws.target_manager import TargetManager
 
-_ROUTES: set[Route] = set()
-
 _ResponseType = tuple[int, Mapping[str, str], str | bytes]
-_P = ParamSpec("_P")
-
-
-@runtime_checkable
-class _RouteMethod(Protocol[_P]):
-    """Callable used for routing which also exposes ``__name__``."""
-
-    __name__: str
-
-    def __call__(self, *args: _P.args, **kwargs: _P.kwargs) -> _ResponseType:
-        """Return a mock response."""
-        ...  # pylint: disable=unnecessary-ellipsis
+type _RouteMethod = Callable[
+    ["MockVuforiaWebQueryAPI", RequestData],
+    _ResponseType,
+]
+_ROUTES: set[RouteDefinition[MockVuforiaWebQueryAPI]] = set()
 
 
 @beartype
@@ -45,7 +35,7 @@ def route(
     *,
     path_pattern: str,
     http_methods: Iterable[str],
-) -> Callable[[_RouteMethod[_P]], _RouteMethod[_P]]:
+) -> Callable[[_RouteMethod], _RouteMethod]:
     """Register a decorated method so that it can be recognized as a route.
 
     Args:
@@ -58,8 +48,8 @@ def route(
     """
 
     def decorator(
-        method: _RouteMethod[_P],
-    ) -> _RouteMethod[_P]:
+        method: _RouteMethod,
+    ) -> _RouteMethod:
         """Register a decorated method so that it can be recognized as a
         route.
 
@@ -67,8 +57,8 @@ def decorator(
             The given `method` with multiple changes, including added
             validators.
         """
-        new_route = Route(
-            route_name=method.__name__,
+        new_route = RouteDefinition(
+            handler=method,
             path_pattern=path_pattern,
             http_methods=frozenset(http_methods),
         )
@@ -101,7 +91,7 @@ def __init__(
         Attributes:
             routes: The `Route`s to be used in the mock.
         """
-        self.routes = _ROUTES
+        self.routes: set[Route] = {route.bind(api=self) for route in _ROUTES}
         self._target_manager = target_manager
         self._query_match_checker = query_match_checker
         self._failure_response = failure_response
diff --git a/src/mock_vws/_requests_mock_server/mock_web_services_api.py b/src/mock_vws/_requests_mock_server/mock_web_services_api.py
index ed164305a..6cb0d7878 100644
--- a/src/mock_vws/_requests_mock_server/mock_web_services_api.py
+++ b/src/mock_vws/_requests_mock_server/mock_web_services_api.py
@@ -12,7 +12,7 @@
 import uuid
 from collections.abc import Callable, Iterable, Mapping
 from http import HTTPMethod, HTTPStatus
-from typing import TYPE_CHECKING, Any, ParamSpec, Protocol, runtime_checkable
+from typing import TYPE_CHECKING, Any
 from zoneinfo import ZoneInfo
 
 from beartype import BeartypeConf, beartype
@@ -30,6 +30,7 @@
     RECO_COUNTS_REPORT_PATH_PATTERN,
     RequestData,
     Route,
+    RouteDefinition,
     json_dump,
     sorted_targets,
 )
@@ -78,21 +79,12 @@
 _MODEL_TARGET_DATASET_UUID_PATTERN = "[A-Za-z0-9-]+"
 
 
-_ROUTES: set[Route] = set()
-
 _ResponseType = tuple[int, Mapping[str, str], str | bytes]
-_P = ParamSpec("_P")
-
-
-@runtime_checkable
-class _RouteMethod(Protocol[_P]):
-    """Callable used for routing which also exposes ``__name__``."""
-
-    __name__: str
-
-    def __call__(self, *args: _P.args, **kwargs: _P.kwargs) -> _ResponseType:
-        """Return a mock response."""
-        ...  # pylint: disable=unnecessary-ellipsis
+type _RouteMethod = Callable[
+    ["MockVuforiaWebServicesAPI", RequestData],
+    _ResponseType,
+]
+_ROUTES: set[RouteDefinition[MockVuforiaWebServicesAPI]] = set()
 
 
 @beartype
@@ -100,7 +92,7 @@ def route(
     *,
     path_pattern: str,
     http_methods: Iterable[HTTPMethod],
-) -> Callable[[_RouteMethod[_P]], _RouteMethod[_P]]:
+) -> Callable[[_RouteMethod], _RouteMethod]:
     """Register a decorated method so that it can be recognized as a route.
 
     Args:
@@ -114,8 +106,8 @@ def route(
 
     @beartype
     def decorator(
-        method: _RouteMethod[_P],
-    ) -> _RouteMethod[_P]:
+        method: _RouteMethod,
+    ) -> _RouteMethod:
         """Register a decorated method so that it can be recognized as a
         route.
 
@@ -123,8 +115,8 @@ def decorator(
             The given `method` with multiple changes, including added
             validators.
         """
-        new_route = Route(
-            route_name=method.__name__,
+        new_route = RouteDefinition(
+            handler=method,
             path_pattern=path_pattern,
             http_methods=frozenset(http_methods),
         )
@@ -186,7 +178,7 @@ def __init__(
         """
         self._target_manager = target_manager
         self._base_vws_url = base_vws_url
-        self.routes = _ROUTES
+        self.routes: set[Route] = {route.bind(api=self) for route in _ROUTES}
         self._processing_time_seconds = processing_time_seconds
         self._model_target_generation_failure = model_target_generation_failure
         self._model_target_failure_response = model_target_failure_response
diff --git a/src/mock_vws/_respx_mock_server/decorators.py b/src/mock_vws/_respx_mock_server/decorators.py
index 1efa46d48..b372659b2 100644
--- a/src/mock_vws/_respx_mock_server/decorators.py
+++ b/src/mock_vws/_respx_mock_server/decorators.py
@@ -152,10 +152,7 @@ def start_respx_router(
             compiled_url_pattern = re.compile(pattern=url_pattern)
 
             for http_method in route.http_methods:
-                original_callback = getattr(  # pylint: disable=bad-builtin
-                    api,
-                    route.route_name,
-                )
+                original_callback = route.handler
                 _ = router.route(
                     method=http_method,
                     url=compiled_url_pattern,
diff --git a/src/mock_vws/decorators.py b/src/mock_vws/decorators.py
index dc957c623..1f84aff32 100644
--- a/src/mock_vws/decorators.py
+++ b/src/mock_vws/decorators.py
@@ -19,7 +19,10 @@
     Httpx2Router,
     start_httpx2_router,
 )
-from mock_vws._mock_common import MissingSchemeError, RequestData
+from mock_vws._mock_common import (
+    MissingSchemeError,
+    RequestData,
+)
 from mock_vws._requests_mock_server.mock_web_query_api import (
     MockVuforiaWebQueryAPI,
 )
@@ -513,10 +516,7 @@ def __enter__(self) -> Self:
                 compiled_url_pattern = re.compile(pattern=url_pattern)
 
                 for http_method in route.http_methods:
-                    original_callback = getattr(  # pylint: disable=bad-builtin
-                        api,
-                        route.route_name,
-                    )
+                    original_callback = route.handler
                     _ = mock.add_callback(
                         method=http_method,
                         url=compiled_url_pattern,