diff --git a/api/ovdashboard_api/config.py b/api/ovdashboard_api/config.py
index fc5a733..ea526d4 100644
--- a/api/ovdashboard_api/config.py
+++ b/api/ovdashboard_api/config.py
@@ -37,22 +37,13 @@ class ImageConfig(BaseModel):
     }
 
 
-class CalAggregateConfig(BaseModel):
-    """
-    Sections "[[calendar.aggregate]]" in "config.txt".
-    """
-
-    name: str = "All Events"
-    calendars: list[str]
-
-
 class CalendarConfig(BaseModel):
     """
     Section "[calendar]" in "config.txt".
     """
 
     future_days: int = 365
-    aggregate: list[CalAggregateConfig] = []
+    aggregate: dict[str, list[str]] = {}
 
 
 class Config(BaseModel):
@@ -79,9 +70,7 @@ class Config(BaseModel):
 
         except RemoteResourceNotFound:
             cfg = cls()
-            cfg.calendar.aggregate.append(
-                CalAggregateConfig(calendars=await caldav_list()),
-            )
+            cfg.calendar.aggregate["All Events"] = list(await caldav_list())
 
             buffer = BytesIO()
             toml_dump(cfg.dict(), buffer)
diff --git a/api/ovdashboard_api/routers/__init__.py b/api/ovdashboard_api/routers/__init__.py
index 263eba4..64f4c53 100644
--- a/api/ovdashboard_api/routers/__init__.py
+++ b/api/ovdashboard_api/routers/__init__.py
@@ -7,12 +7,13 @@ This file: Main API router definition.
 from fastapi import APIRouter
 
 from ..settings import SETTINGS
-from . import calendar, image, text
+from . import cal_aggregate, calendar, image, text
 
 main_router = APIRouter(prefix=f"/{SETTINGS.api_v1_prefix}")
 main_router.include_router(text.router)
 main_router.include_router(image.router)
 main_router.include_router(calendar.router)
+main_router.include_router(cal_aggregate.router)
 
 __all__ = [
     "main_router",
diff --git a/api/ovdashboard_api/routers/_common.py b/api/ovdashboard_api/routers/_common.py
index 8c210d3..f633299 100644
--- a/api/ovdashboard_api/routers/_common.py
+++ b/api/ovdashboard_api/routers/_common.py
@@ -9,6 +9,7 @@ from typing import Iterator, Protocol
 from fastapi import HTTPException, status
 from webdav3.exceptions import RemoteResourceNotFound
 
+from ..config import Config
 from ..dav_common import caldav_list, webdav_list
 
 
@@ -74,6 +75,18 @@ class CalendarNameLister:
         return await caldav_list()
 
 
+@dataclass(frozen=True)
+class CalAggregateLister:
+    """
+    Can be called to create an iterator containing CalAggregate names.
+    """
+
+    async def __call__(self) -> Iterator[str]:
+        cfg = await Config.get()
+
+        return iter(cfg.calendar.aggregate.keys())
+
+
 @dataclass(frozen=True)
 class PrefixFinder:
     """
diff --git a/api/ovdashboard_api/routers/cal_aggregate.py b/api/ovdashboard_api/routers/cal_aggregate.py
new file mode 100644
index 0000000..2f76510
--- /dev/null
+++ b/api/ovdashboard_api/routers/cal_aggregate.py
@@ -0,0 +1,49 @@
+"""
+Router "cal_aggregate" provides:
+
+- listing aggregate calendars
+- finding aggregate calendars by name prefix
+- getting aggregate calendar events by name prefix
+"""
+
+from typing import Iterator
+
+from fastapi import APIRouter, Depends
+from ovdashboard_api.config import Config
+
+from ..dav_calendar import CalEvent, DavCalendar
+from ._common import CalAggregateLister, PrefixFinder, PrefixUnique
+
+router = APIRouter(prefix="/aggregate", tags=["calendar"])
+
+_lister = CalAggregateLister()
+_finder = PrefixFinder(_lister)
+_unique = PrefixUnique(_finder)
+
+
+@router.get("/list", response_model=list[str])
+async def list_aggregate_calendars(
+    names: Iterator[str] = Depends(_lister),
+) -> list[str]:
+    return list(names)
+
+
+@router.get("/find/{prefix}", response_model=list[str])
+async def find_aggregate_calendars(
+    names: Iterator[str] = Depends(_finder),
+) -> list[str]:
+    return list(names)
+
+
+@router.get("/get/{prefix}", response_model=list[CalEvent])
+async def get_aggregate_calendar(
+    name: Iterator[str] = Depends(_unique),
+) -> list[CalEvent]:
+    cfg = await Config.get()
+    aggregate = cfg.calendar.aggregate[name]
+
+    return sorted([
+        event
+        for calendar_name in aggregate
+        for event in (await DavCalendar(calendar_name).events)
+    ])