diff --git a/homeassistant/components/mcp_server/llm_api.py b/homeassistant/components/mcp_server/llm_api.py
index f4292744815..5c29b29153e 100644
--- a/homeassistant/components/mcp_server/llm_api.py
+++ b/homeassistant/components/mcp_server/llm_api.py
@@ -35,13 +35,13 @@ class StatelessAssistAPI(llm.AssistAPI):
         """Return the prompt for the exposed entities."""
         prompt = []
 
-        if exposed_entities:
+        if exposed_entities and exposed_entities["entities"]:
             prompt.append(
                 "An overview of the areas and the devices in this smart home:"
             )
             entities = [
                 {k: v for k, v in entity_info.items() if k in EXPOSED_ENTITY_FIELDS}
-                for entity_info in exposed_entities.values()
+                for entity_info in exposed_entities["entities"].values()
             ]
             prompt.append(yaml_util.dump(list(entities)))
 
diff --git a/homeassistant/helpers/llm.py b/homeassistant/helpers/llm.py
index 2bca4c8528b..b330494a1b8 100644
--- a/homeassistant/helpers/llm.py
+++ b/homeassistant/helpers/llm.py
@@ -326,7 +326,7 @@ class AssistAPI(API):
     def _async_get_api_prompt(
         self, llm_context: LLMContext, exposed_entities: dict | None
     ) -> str:
-        if not exposed_entities:
+        if not exposed_entities or not exposed_entities["entities"]:
             return (
                 "Only if the user wants to control a device, tell them to expose entities "
                 "to their voice assistant in Home Assistant."
@@ -389,11 +389,11 @@ class AssistAPI(API):
         """Return the prompt for the API for exposed entities."""
         prompt = []
 
-        if exposed_entities:
+        if exposed_entities and exposed_entities["entities"]:
             prompt.append(
                 "An overview of the areas and the devices in this smart home:"
             )
-            prompt.append(yaml_util.dump(list(exposed_entities.values())))
+            prompt.append(yaml_util.dump(list(exposed_entities["entities"].values())))
 
         return prompt
 
@@ -425,8 +425,9 @@ class AssistAPI(API):
         exposed_domains: set[str] | None = None
         if exposed_entities is not None:
             exposed_domains = {
-                split_entity_id(entity_id)[0] for entity_id in exposed_entities
+                info["domain"] for info in exposed_entities["entities"].values()
             }
+
             intent_handlers = [
                 intent_handler
                 for intent_handler in intent_handlers
@@ -438,25 +439,29 @@ class AssistAPI(API):
             IntentTool(self.cached_slugify(intent_handler.intent_type), intent_handler)
             for intent_handler in intent_handlers
         ]
-        if exposed_domains and CALENDAR_DOMAIN in exposed_domains:
-            tools.append(CalendarGetEventsTool())
 
-        if llm_context.assistant is not None:
-            for state in self.hass.states.async_all(SCRIPT_DOMAIN):
-                if not async_should_expose(
-                    self.hass, llm_context.assistant, state.entity_id
-                ):
-                    continue
+        if exposed_entities:
+            if exposed_entities[CALENDAR_DOMAIN]:
+                names = []
+                for info in exposed_entities[CALENDAR_DOMAIN].values():
+                    names.extend(info["names"].split(", "))
+                tools.append(CalendarGetEventsTool(names))
 
-                tools.append(ScriptTool(self.hass, state.entity_id))
+            tools.extend(
+                ScriptTool(self.hass, script_entity_id)
+                for script_entity_id in exposed_entities[SCRIPT_DOMAIN]
+            )
 
         return tools
 
 
 def _get_exposed_entities(
     hass: HomeAssistant, assistant: str
-) -> dict[str, dict[str, Any]]:
-    """Get exposed entities."""
+) -> dict[str, dict[str, dict[str, Any]]]:
+    """Get exposed entities.
+
+    Splits out calendars and scripts.
+    """
     area_registry = ar.async_get(hass)
     entity_registry = er.async_get(hass)
     device_registry = dr.async_get(hass)
@@ -477,12 +482,13 @@ def _get_exposed_entities(
     }
 
     entities = {}
+    data: dict[str, dict[str, Any]] = {
+        SCRIPT_DOMAIN: {},
+        CALENDAR_DOMAIN: {},
+    }
 
     for state in hass.states.async_all():
-        if (
-            not async_should_expose(hass, assistant, state.entity_id)
-            or state.domain == SCRIPT_DOMAIN
-        ):
+        if not async_should_expose(hass, assistant, state.entity_id):
             continue
 
         description: str | None = None
@@ -529,9 +535,13 @@ def _get_exposed_entities(
         }:
             info["attributes"] = attributes
 
-        entities[state.entity_id] = info
+        if state.domain in data:
+            data[state.domain][state.entity_id] = info
+        else:
+            entities[state.entity_id] = info
 
-    return entities
+    data["entities"] = entities
+    return data
 
 
 def _selector_serializer(schema: Any) -> Any:  # noqa: C901
@@ -813,15 +823,18 @@ class CalendarGetEventsTool(Tool):
     name = "calendar_get_events"
     description = (
         "Get events from a calendar. "
-        "When asked when something happens, search the whole week. "
+        "When asked if something happens, search the whole week. "
         "Results are RFC 5545 which means 'end' is exclusive."
     )
-    parameters = vol.Schema(
-        {
-            vol.Required("calendar"): cv.string,
-            vol.Required("range"): vol.In(["today", "week"]),
-        }
-    )
+
+    def __init__(self, calendars: list[str]) -> None:
+        """Init the get events tool."""
+        self.parameters = vol.Schema(
+            {
+                vol.Required("calendar"): vol.In(calendars),
+                vol.Required("range"): vol.In(["today", "week"]),
+            }
+        )
 
     async def async_call(
         self, hass: HomeAssistant, tool_input: ToolInput, llm_context: LLMContext
diff --git a/tests/helpers/test_llm.py b/tests/helpers/test_llm.py
index e288026b67b..630ed3f4fa1 100644
--- a/tests/helpers/test_llm.py
+++ b/tests/helpers/test_llm.py
@@ -1170,7 +1170,9 @@ async def test_selector_serializer(
 async def test_calendar_get_events_tool(hass: HomeAssistant) -> None:
     """Test the calendar get events tool."""
     assert await async_setup_component(hass, "homeassistant", {})
-    hass.states.async_set("calendar.test_calendar", "on", {"friendly_name": "Test"})
+    hass.states.async_set(
+        "calendar.test_calendar", "on", {"friendly_name": "Mock Calendar Name"}
+    )
     async_expose_entity(hass, "conversation", "calendar.test_calendar", True)
     context = Context()
     llm_context = llm.LLMContext(
@@ -1182,7 +1184,11 @@ async def test_calendar_get_events_tool(hass: HomeAssistant) -> None:
         device_id=None,
     )
     api = await llm.async_get_api(hass, "assist", llm_context)
-    assert [tool for tool in api.tools if tool.name == "calendar_get_events"]
+    tool = next(
+        (tool for tool in api.tools if tool.name == "calendar_get_events"), None
+    )
+    assert tool is not None
+    assert tool.parameters.schema["calendar"].container == ["Mock Calendar Name"]
 
     calls = async_mock_service(
         hass,
@@ -1212,7 +1218,10 @@ async def test_calendar_get_events_tool(hass: HomeAssistant) -> None:
 
     tool_input = llm.ToolInput(
         tool_name="calendar_get_events",
-        tool_args={"calendar": "calendar.test_calendar", "range": "today"},
+        tool_args={
+            "calendar": "Mock Calendar Name",
+            "range": "today",
+        },
     )
     now = dt_util.now()
     with patch("homeassistant.util.dt.now", return_value=now):