diff --git a/robot-server/robot_server/client_data/router.py b/robot-server/robot_server/client_data/router.py
index 515729529f7..847c5da59a9 100644
--- a/robot-server/robot_server/client_data/router.py
+++ b/robot-server/robot_server/client_data/router.py
@@ -4,7 +4,7 @@
 from typing import Annotated, Literal
 
 import fastapi
-from server_utils.fastapi_utils.light_router import FastBuildRouter
+from server_utils.fastapi_utils.light_router import LightRouter
 
 from robot_server.client_data.store import (
     ClientData,
@@ -19,7 +19,7 @@
     get_client_data_publisher,
 )
 
-router = FastBuildRouter()
+router = LightRouter()
 
 
 Key = Annotated[
diff --git a/robot-server/robot_server/commands/router.py b/robot-server/robot_server/commands/router.py
index c286c14ade1..4d23bb73fbe 100644
--- a/robot-server/robot_server/commands/router.py
+++ b/robot-server/robot_server/commands/router.py
@@ -2,7 +2,7 @@
 from typing import Annotated, Final, List, Literal, Optional, cast
 
 from fastapi import Depends, Query, status
-from server_utils.fastapi_utils.light_router import FastBuildRouter
+from server_utils.fastapi_utils.light_router import LightRouter
 
 from opentrons.protocol_engine import CommandIntent
 from opentrons.protocol_engine.errors import CommandDoesNotExistError
@@ -26,7 +26,7 @@
 _DEFAULT_COMMAND_LIST_LENGTH: Final = 20
 
 
-commands_router = FastBuildRouter()
+commands_router = LightRouter()
 
 
 class CommandNotFound(ErrorDetails):
diff --git a/robot-server/robot_server/data_files/router.py b/robot-server/robot_server/data_files/router.py
index 61c5b39932c..ba5cac2f7fd 100644
--- a/robot-server/robot_server/data_files/router.py
+++ b/robot-server/robot_server/data_files/router.py
@@ -6,7 +6,7 @@
 
 from fastapi import UploadFile, File, Form, Depends, Response, status
 from opentrons.protocol_reader import FileHasher, FileReaderWriter
-from server_utils.fastapi_utils.light_router import FastBuildRouter
+from server_utils.fastapi_utils.light_router import LightRouter
 
 from robot_server.service.json_api import (
     SimpleBody,
@@ -33,7 +33,7 @@
 from ..protocols.dependencies import get_file_hasher, get_file_reader_writer
 from ..service.dependencies import get_current_time, get_unique_id
 
-datafiles_router = FastBuildRouter()
+datafiles_router = LightRouter()
 
 
 class MultipleDataFileSources(ErrorDetails):
diff --git a/robot-server/robot_server/deck_configuration/router.py b/robot-server/robot_server/deck_configuration/router.py
index 79cde2c1fb7..ce80acafb2a 100644
--- a/robot-server/robot_server/deck_configuration/router.py
+++ b/robot-server/robot_server/deck_configuration/router.py
@@ -6,7 +6,7 @@
 
 import fastapi
 from starlette.status import HTTP_422_UNPROCESSABLE_ENTITY
-from server_utils.fastapi_utils.light_router import FastBuildRouter
+from server_utils.fastapi_utils.light_router import LightRouter
 
 from opentrons_shared_data.deck.types import DeckDefinitionV5
 
@@ -22,7 +22,7 @@
 from .store import DeckConfigurationStore
 
 
-router = FastBuildRouter()
+router = LightRouter()
 
 
 @PydanticResponse.wrap_route(
diff --git a/robot-server/robot_server/error_recovery/settings/router.py b/robot-server/robot_server/error_recovery/settings/router.py
index d811bf719de..d3c4467a301 100644
--- a/robot-server/robot_server/error_recovery/settings/router.py
+++ b/robot-server/robot_server/error_recovery/settings/router.py
@@ -4,14 +4,14 @@
 from typing import Annotated
 
 import fastapi
-from server_utils.fastapi_utils.light_router import FastBuildRouter
+from server_utils.fastapi_utils.light_router import LightRouter
 
 from robot_server.service.json_api import PydanticResponse, RequestModel, SimpleBody
 from .models import RequestData, ResponseData
 from .store import ErrorRecoverySettingStore, get_error_recovery_setting_store
 
 
-router = FastBuildRouter()
+router = LightRouter()
 _PATH = "/errorRecovery/settings"
 
 
diff --git a/robot-server/robot_server/instruments/router.py b/robot-server/robot_server/instruments/router.py
index bb3469c9d64..d0cc4a212ed 100644
--- a/robot-server/robot_server/instruments/router.py
+++ b/robot-server/robot_server/instruments/router.py
@@ -2,7 +2,7 @@
 from typing import Annotated, Optional, Dict, List, cast
 
 from fastapi import status, Depends
-from server_utils.fastapi_utils.light_router import FastBuildRouter
+from server_utils.fastapi_utils.light_router import LightRouter
 
 from opentrons.hardware_control.instruments.ot3.instrument_calibration import (
     PipetteOffsetSummary,
@@ -51,7 +51,7 @@
 
 from opentrons.hardware_control import OT3HardwareControlAPI
 
-instruments_router = FastBuildRouter()
+instruments_router = LightRouter()
 
 
 def _pipette_dict_to_pipette_res(
diff --git a/robot-server/robot_server/labware_offsets/router.py b/robot-server/robot_server/labware_offsets/router.py
index 31786ea9db7..6aca03e4b18 100644
--- a/robot-server/robot_server/labware_offsets/router.py
+++ b/robot-server/robot_server/labware_offsets/router.py
@@ -6,7 +6,7 @@
 from typing import Annotated, Literal
 
 import fastapi
-from server_utils.fastapi_utils.light_router import FastBuildRouter
+from server_utils.fastapi_utils.light_router import LightRouter
 
 from opentrons.protocol_engine import LabwareOffset, LabwareOffsetCreate, ModuleModel
 from opentrons.types import DeckSlotName
@@ -26,7 +26,7 @@
 from .fastapi_dependencies import get_labware_offset_store
 
 
-router = FastBuildRouter()
+router = LightRouter()
 
 
 @PydanticResponse.wrap_route(
diff --git a/robot-server/robot_server/maintenance_runs/router/__init__.py b/robot-server/robot_server/maintenance_runs/router/__init__.py
index 8971f6c7229..b017a0a6adf 100644
--- a/robot-server/robot_server/maintenance_runs/router/__init__.py
+++ b/robot-server/robot_server/maintenance_runs/router/__init__.py
@@ -1,12 +1,12 @@
 """Maintenance Runs router."""
-from server_utils.fastapi_utils.light_router import FastBuildRouter
+from server_utils.fastapi_utils.light_router import LightRouter
 
 from .base_router import base_router
 
 from .commands_router import commands_router
 from .labware_router import labware_router
 
-maintenance_runs_router = FastBuildRouter()
+maintenance_runs_router = LightRouter()
 
 maintenance_runs_router.include_router(base_router)
 maintenance_runs_router.include_router(commands_router)
diff --git a/robot-server/robot_server/maintenance_runs/router/base_router.py b/robot-server/robot_server/maintenance_runs/router/base_router.py
index 5131140f177..3dd2060c2cd 100644
--- a/robot-server/robot_server/maintenance_runs/router/base_router.py
+++ b/robot-server/robot_server/maintenance_runs/router/base_router.py
@@ -10,7 +10,7 @@
 
 from fastapi import Depends, status
 from pydantic import BaseModel, Field
-from server_utils.fastapi_utils.light_router import FastBuildRouter
+from server_utils.fastapi_utils.light_router import LightRouter
 
 from robot_server.errors.error_responses import ErrorDetails, ErrorBody
 from robot_server.service.dependencies import get_current_time, get_unique_id
@@ -43,7 +43,7 @@
 from robot_server.service.notifications import get_pe_notify_publishers
 
 log = logging.getLogger(__name__)
-base_router = FastBuildRouter()
+base_router = LightRouter()
 
 
 # TODO (spp, 2023-04-10): move all error types from maintenance & regular runs
diff --git a/robot-server/robot_server/maintenance_runs/router/commands_router.py b/robot-server/robot_server/maintenance_runs/router/commands_router.py
index 3335ed5e40f..0bb3d64c192 100644
--- a/robot-server/robot_server/maintenance_runs/router/commands_router.py
+++ b/robot-server/robot_server/maintenance_runs/router/commands_router.py
@@ -4,7 +4,7 @@
 from typing_extensions import Final, Literal
 
 from fastapi import Depends, Query, status
-from server_utils.fastapi_utils.light_router import FastBuildRouter
+from server_utils.fastapi_utils.light_router import LightRouter
 
 from opentrons.protocol_engine import (
     CommandPointer,
@@ -40,7 +40,7 @@
 
 _DEFAULT_COMMAND_LIST_LENGTH: Final = 20
 
-commands_router = FastBuildRouter()
+commands_router = LightRouter()
 
 
 class CommandNotFound(ErrorDetails):
diff --git a/robot-server/robot_server/maintenance_runs/router/labware_router.py b/robot-server/robot_server/maintenance_runs/router/labware_router.py
index 29f7d041808..100fafe910a 100644
--- a/robot-server/robot_server/maintenance_runs/router/labware_router.py
+++ b/robot-server/robot_server/maintenance_runs/router/labware_router.py
@@ -3,7 +3,7 @@
 import logging
 
 from fastapi import Depends, status
-from server_utils.fastapi_utils.light_router import FastBuildRouter
+from server_utils.fastapi_utils.light_router import LightRouter
 
 from opentrons.protocol_engine import LabwareOffsetCreate, LabwareOffset
 from opentrons.protocols.models import LabwareDefinition
@@ -17,7 +17,7 @@
 from .base_router import RunNotFound, RunNotIdle, get_run_data_from_url
 
 log = logging.getLogger(__name__)
-labware_router = FastBuildRouter()
+labware_router = LightRouter()
 
 
 @PydanticResponse.wrap_route(
diff --git a/robot-server/robot_server/modules/router.py b/robot-server/robot_server/modules/router.py
index ec8c4d8b1d6..8bbf8a6ae7a 100644
--- a/robot-server/robot_server/modules/router.py
+++ b/robot-server/robot_server/modules/router.py
@@ -2,7 +2,7 @@
 from typing import Annotated, List, Dict
 
 from fastapi import Depends, status
-from server_utils.fastapi_utils.light_router import FastBuildRouter
+from server_utils.fastapi_utils.light_router import LightRouter
 
 from opentrons.hardware_control import HardwareControlAPI
 from opentrons.hardware_control.modules import module_calibration
@@ -23,7 +23,7 @@
 from .module_identifier import ModuleIdentifier
 from .module_data_mapper import ModuleDataMapper
 
-modules_router = FastBuildRouter()
+modules_router = LightRouter()
 
 
 @PydanticResponse.wrap_route(
diff --git a/robot-server/robot_server/protocols/router.py b/robot-server/robot_server/protocols/router.py
index 5d991fb79fc..574f9621004 100644
--- a/robot-server/robot_server/protocols/router.py
+++ b/robot-server/robot_server/protocols/router.py
@@ -25,7 +25,7 @@
 )
 from fastapi.responses import PlainTextResponse
 from pydantic import BaseModel, Field
-from server_utils.fastapi_utils.light_router import FastBuildRouter
+from server_utils.fastapi_utils.light_router import LightRouter
 
 from opentrons.protocol_reader import (
     ProtocolReader,
@@ -151,7 +151,7 @@ class ProtocolLinks(BaseModel):
     )
 
 
-protocols_router = FastBuildRouter()
+protocols_router = LightRouter()
 
 
 @PydanticResponse.wrap_route(
diff --git a/robot-server/robot_server/robot/control/router.py b/robot-server/robot_server/robot/control/router.py
index f2ab0aa239c..037ef1dc96a 100644
--- a/robot-server/robot_server/robot/control/router.py
+++ b/robot-server/robot_server/robot/control/router.py
@@ -2,7 +2,7 @@
 from typing import Annotated, TYPE_CHECKING
 
 from fastapi import status, Depends
-from server_utils.fastapi_utils.light_router import FastBuildRouter
+from server_utils.fastapi_utils.light_router import LightRouter
 
 from opentrons_shared_data.robot.types import RobotType
 from opentrons_shared_data.robot.types import RobotTypeEnum
@@ -24,7 +24,7 @@
 if TYPE_CHECKING:
     from opentrons.hardware_control.ot3api import OT3API  # noqa: F401
 
-control_router = FastBuildRouter()
+control_router = LightRouter()
 
 
 async def _get_estop_status_response(
diff --git a/robot-server/robot_server/robot/router.py b/robot-server/robot_server/robot/router.py
index cba11f329e7..6c6dd6acc05 100644
--- a/robot-server/robot_server/robot/router.py
+++ b/robot-server/robot_server/robot/router.py
@@ -1,8 +1,8 @@
 """Router for /robot endpoints."""
-from server_utils.fastapi_utils.light_router import FastBuildRouter
+from server_utils.fastapi_utils.light_router import LightRouter
 
 from .control.router import control_router
 
-robot_router = FastBuildRouter()
+robot_router = LightRouter()
 
 robot_router.include_router(router=control_router)
diff --git a/robot-server/robot_server/router.py b/robot-server/robot_server/router.py
index ee1d767f823..ab5af067637 100644
--- a/robot-server/robot_server/router.py
+++ b/robot-server/robot_server/router.py
@@ -1,6 +1,6 @@
 """Application routes."""
 from fastapi import Depends, status
-from server_utils.fastapi_utils.light_router import FastBuildRouter
+from server_utils.fastapi_utils.light_router import LightRouter
 
 
 from .constants import V1_TAG
@@ -28,15 +28,15 @@
 from .subsystems.router import subsystems_router
 from .system.router import system_router
 
-router = FastBuildRouter()
+router = LightRouter()
 
 # Legacy routes
 router.include_router(
     router=legacy_routes,
     tags=[V1_TAG],
     # todo(mm, 2024-12-19): This `responses` setting is preventing us from
-    # porting legacy_routes from fastapi.APIRouter to our FastBuildRouter.
-    # Either teach FastBuildRouter how to handle `responses` or stop doing
+    # porting legacy_routes from fastapi.APIRouter to our LightRouter.
+    # Either teach LightRouter how to handle `responses` or stop doing
     # a custom 422 response on these endpoints.
     responses={
         status.HTTP_422_UNPROCESSABLE_ENTITY: {
@@ -50,8 +50,8 @@
     dependencies=[Depends(check_version_header)],
     responses={
         # todo(mm, 2024-12-19): This `responses` setting is preventing us from
-        # porting health_router from fastapi.APIRouter to our FastBuildRouter.
-        # Either teach FastBuildRouter how to handle `responses` or stop doing
+        # porting health_router from fastapi.APIRouter to our LightRouter.
+        # Either teach LightRouter how to handle `responses` or stop doing
         # a custom 422 response on these endpoints.
         status.HTTP_422_UNPROCESSABLE_ENTITY: {
             "model": LegacyErrorResponse,
diff --git a/robot-server/robot_server/runs/router/__init__.py b/robot-server/robot_server/runs/router/__init__.py
index 82198a75f98..fa8be0cee67 100644
--- a/robot-server/robot_server/runs/router/__init__.py
+++ b/robot-server/robot_server/runs/router/__init__.py
@@ -1,5 +1,5 @@
 """Runs router."""
-from server_utils.fastapi_utils.light_router import FastBuildRouter
+from server_utils.fastapi_utils.light_router import LightRouter
 
 from .base_router import base_router
 from .commands_router import commands_router
@@ -7,7 +7,7 @@
 from .labware_router import labware_router
 from .error_recovery_policy_router import error_recovery_policy_router
 
-runs_router = FastBuildRouter()
+runs_router = LightRouter()
 
 runs_router.include_router(base_router)
 runs_router.include_router(commands_router)
diff --git a/robot-server/robot_server/runs/router/actions_router.py b/robot-server/robot_server/runs/router/actions_router.py
index 631e7192166..0bfb16185c7 100644
--- a/robot-server/robot_server/runs/router/actions_router.py
+++ b/robot-server/robot_server/runs/router/actions_router.py
@@ -5,7 +5,7 @@
 from typing import Annotated, Literal, Union
 
 from fastapi import Depends, status
-from server_utils.fastapi_utils.light_router import FastBuildRouter
+from server_utils.fastapi_utils.light_router import LightRouter
 
 from robot_server.errors.error_responses import ErrorDetails, ErrorBody
 from robot_server.service.dependencies import get_current_time, get_unique_id
@@ -39,7 +39,7 @@
 )
 
 log = logging.getLogger(__name__)
-actions_router = FastBuildRouter()
+actions_router = LightRouter()
 
 
 class RunActionNotAllowed(ErrorDetails):
diff --git a/robot-server/robot_server/runs/router/base_router.py b/robot-server/robot_server/runs/router/base_router.py
index 6bd7999a946..8e478c08de9 100644
--- a/robot-server/robot_server/runs/router/base_router.py
+++ b/robot-server/robot_server/runs/router/base_router.py
@@ -10,7 +10,7 @@
 
 from fastapi import Depends, status, Query
 from pydantic import BaseModel, Field
-from server_utils.fastapi_utils.light_router import FastBuildRouter
+from server_utils.fastapi_utils.light_router import LightRouter
 
 
 from opentrons_shared_data.errors import ErrorCodes
@@ -89,7 +89,7 @@
 from robot_server.service.notifications import get_pe_notify_publishers
 
 log = logging.getLogger(__name__)
-base_router = FastBuildRouter()
+base_router = LightRouter()
 
 _DEFAULT_COMMAND_ERROR_LIST_LENGTH: Final = 20
 
diff --git a/robot-server/robot_server/runs/router/commands_router.py b/robot-server/robot_server/runs/router/commands_router.py
index cc016288425..b2cbb79b2bb 100644
--- a/robot-server/robot_server/runs/router/commands_router.py
+++ b/robot-server/robot_server/runs/router/commands_router.py
@@ -3,7 +3,7 @@
 from typing import Annotated, Final, Literal, Optional, Union
 
 from fastapi import Depends, Query, status
-from server_utils.fastapi_utils.light_router import FastBuildRouter
+from server_utils.fastapi_utils.light_router import LightRouter
 
 from opentrons.protocol_engine import (
     CommandPointer,
@@ -45,7 +45,7 @@
 
 _DEFAULT_COMMAND_LIST_LENGTH: Final = 20
 
-commands_router = FastBuildRouter()
+commands_router = LightRouter()
 
 
 class CommandNotFound(ErrorDetails):
diff --git a/robot-server/robot_server/runs/router/error_recovery_policy_router.py b/robot-server/robot_server/runs/router/error_recovery_policy_router.py
index 2f301501d6d..2b1c786b9d4 100644
--- a/robot-server/robot_server/runs/router/error_recovery_policy_router.py
+++ b/robot-server/robot_server/runs/router/error_recovery_policy_router.py
@@ -5,7 +5,7 @@
 from typing import Annotated
 
 from fastapi import status, Depends
-from server_utils.fastapi_utils.light_router import FastBuildRouter
+from server_utils.fastapi_utils.light_router import LightRouter
 
 from robot_server.errors.error_responses import ErrorBody
 from robot_server.service.json_api.request import RequestModel
@@ -21,7 +21,7 @@
 from ..error_recovery_models import ErrorRecoveryPolicy
 
 
-error_recovery_policy_router = FastBuildRouter()
+error_recovery_policy_router = LightRouter()
 
 
 @PydanticResponse.wrap_route(
diff --git a/robot-server/robot_server/runs/router/labware_router.py b/robot-server/robot_server/runs/router/labware_router.py
index a737657f884..06c16f8b71a 100644
--- a/robot-server/robot_server/runs/router/labware_router.py
+++ b/robot-server/robot_server/runs/router/labware_router.py
@@ -9,7 +9,7 @@
     LabwareDefinition as SD_LabwareDefinition,
 )
 
-from server_utils.fastapi_utils.light_router import FastBuildRouter
+from server_utils.fastapi_utils.light_router import LightRouter
 
 from opentrons.protocol_engine import LabwareOffsetCreate, LabwareOffset
 from opentrons.protocols.models import LabwareDefinition
@@ -28,7 +28,7 @@
 from .base_router import RunNotFound, RunStopped, RunNotIdle, get_run_data_from_url
 
 log = logging.getLogger(__name__)
-labware_router = FastBuildRouter()
+labware_router = LightRouter()
 
 
 @PydanticResponse.wrap_route(
diff --git a/robot-server/robot_server/service/labware/router.py b/robot-server/robot_server/service/labware/router.py
index 59b0b844dff..6d44f2faeee 100644
--- a/robot-server/robot_server/service/labware/router.py
+++ b/robot-server/robot_server/service/labware/router.py
@@ -7,7 +7,7 @@
 from typing_extensions import Literal, NoReturn
 
 from fastapi import Depends, status
-from server_utils.fastapi_utils.light_router import FastBuildRouter
+from server_utils.fastapi_utils.light_router import LightRouter
 
 from opentrons_shared_data.errors import ErrorCodes
 from robot_server.errors.error_responses import ErrorDetails, ErrorBody
@@ -16,7 +16,7 @@
 from robot_server.service.errors import RobotServerError, CommonErrorDef
 
 
-router = FastBuildRouter()
+router = LightRouter()
 
 
 class LabwareCalibrationEndpointsRemoved(ErrorDetails):
diff --git a/robot-server/robot_server/subsystems/router.py b/robot-server/robot_server/subsystems/router.py
index e13499e757a..950cf0505e2 100644
--- a/robot-server/robot_server/subsystems/router.py
+++ b/robot-server/robot_server/subsystems/router.py
@@ -6,7 +6,7 @@
 from fastapi import status, Depends, Response, Request
 from typing_extensions import Literal
 
-from server_utils.fastapi_utils.light_router import FastBuildRouter
+from server_utils.fastapi_utils.light_router import LightRouter
 
 from robot_server.service.json_api import (
     SimpleMultiBody,
@@ -47,7 +47,7 @@
 if TYPE_CHECKING:
     from opentrons.hardware_control.ot3api import OT3API  # noqa: F401
 
-subsystems_router = FastBuildRouter()
+subsystems_router = LightRouter()
 
 
 def status_route_for(subsystem: SubSystem) -> str: