diff --git a/app.py b/app.py
index f51a415..6a74e67 100644
--- a/app.py
+++ b/app.py
@@ -16,7 +16,6 @@ from bp import (
     register_admin,
     register_menu_items,
     register_snippets,
-    register_coop_api,
 )
 
 
@@ -78,9 +77,6 @@ def create_app() -> "Quart":
     app.register_blueprint(register_menu_items())
     app.register_blueprint(register_snippets())
 
-    # Internal API (server-to-server, CSRF-exempt)
-    app.register_blueprint(register_coop_api())
-
     # --- KV admin endpoints ---
     @app.get("/settings/kv/<key>")
     async def kv_get(key: str):
diff --git a/bp/__init__.py b/bp/__init__.py
index 437a90c..bf345c1 100644
--- a/bp/__init__.py
+++ b/bp/__init__.py
@@ -3,4 +3,3 @@ from .blog.routes import register as register_blog_bp
 from .admin.routes import register as register_admin
 from .menu_items.routes import register as register_menu_items
 from .snippets.routes import register as register_snippets
-from .coop_api import register as register_coop_api
diff --git a/bp/coop_api.py b/bp/coop_api.py
deleted file mode 100644
index 86cbaf2..0000000
--- a/bp/coop_api.py
+++ /dev/null
@@ -1,51 +0,0 @@
-"""
-Internal JSON API for the coop app.
-
-These endpoints are called by other apps (market, cart) over HTTP
-to fetch Ghost CMS content without importing blog services.
-"""
-from __future__ import annotations
-
-from quart import Blueprint, g, jsonify
-
-from shared.browser.app.csrf import csrf_exempt
-
-
-def register() -> Blueprint:
-    bp = Blueprint("coop_api", __name__, url_prefix="/internal")
-
-    @bp.get("/post/<slug>")
-    @csrf_exempt
-    async def post_by_slug(slug: str):
-        """
-        Return a Ghost post's key fields by slug.
-        Called by market app for the landing page.
-        """
-        from bp.blog.ghost_db import DBClient
-
-        client = DBClient(g.s)
-        posts = await client.posts_by_slug(slug, include_drafts=False)
-
-        if not posts:
-            return jsonify(None), 404
-
-        post, original_post = posts[0]
-
-        return jsonify(
-            {
-                "post": {
-                    "id": post.get("id"),
-                    "title": post.get("title"),
-                    "html": post.get("html"),
-                    "custom_excerpt": post.get("custom_excerpt"),
-                    "feature_image": post.get("feature_image"),
-                    "slug": post.get("slug"),
-                },
-                "original_post": {
-                    "id": getattr(original_post, "id", None),
-                    "title": getattr(original_post, "title", None),
-                },
-            }
-        )
-
-    return bp
diff --git a/bp/post/admin/routes.py b/bp/post/admin/routes.py
index a895659..ece0ff6 100644
--- a/bp/post/admin/routes.py
+++ b/bp/post/admin/routes.py
@@ -191,13 +191,12 @@ def register():
   @require_admin
   async def calendar_view(slug: str, calendar_id: int):
     """Show calendar month view for browsing entries"""
-    from shared.models.calendars import Calendar  # TODO: service method when admin UI is reworked
+    from shared.models.calendars import Calendar
+    from shared.utils.calendar_helpers import parse_int_arg, add_months, build_calendar_weeks
+    from shared.services.registry import services
     from sqlalchemy import select
     from datetime import datetime, timezone
-    from quart import request
     import calendar as pycalendar
-    from ...calendar.services.calendar_view import parse_int_arg, add_months, build_calendar_weeks
-    from ...calendar.services import get_visible_entries_for_period
     from quart import session as qsession
     from ..services.entry_associations import get_post_entry_ids
 
@@ -235,15 +234,13 @@ def register():
     period_end = datetime(next_y, next_m, 1, tzinfo=timezone.utc)
 
     user = getattr(g, "user", None)
+    user_id = user.id if user else None
+    is_admin = bool(user and getattr(user, "is_admin", False))
     session_id = qsession.get("calendar_sid")
 
-    visible = await get_visible_entries_for_period(
-      sess=g.s,
-      calendar_id=calendar_obj.id,
-      period_start=period_start,
-      period_end=period_end,
-      user=user,
-      session_id=session_id,
+    month_entries = await services.calendar.visible_entries_for_period(
+      g.s, calendar_obj.id, period_start, period_end,
+      user_id=user_id, is_admin=is_admin, session_id=session_id,
     )
 
     # Get associated entry IDs for this post
@@ -264,7 +261,7 @@ def register():
       next_month_year=next_month_year,
       prev_year=prev_year,
       next_year=next_year,
-      month_entries=visible.merged_entries,
+      month_entries=month_entries,
       associated_entry_ids=associated_entry_ids,
     )
     return await make_response(html)
@@ -273,7 +270,7 @@ def register():
   @require_admin
   async def entries(slug: str):
     from ..services.entry_associations import get_post_entry_ids
-    from shared.models.calendars import Calendar  # TODO: service method when admin UI is reworked
+    from shared.models.calendars import Calendar
     from sqlalchemy import select
 
     post_id = g.post_data["post"]["id"]
@@ -309,7 +306,7 @@ def register():
   @require_admin
   async def toggle_entry(slug: str, entry_id: int):
     from ..services.entry_associations import toggle_entry_association, get_post_entry_ids, get_associated_entries
-    from shared.models.calendars import Calendar  # TODO: service method when admin UI is reworked
+    from shared.models.calendars import Calendar
     from sqlalchemy import select
     from quart import jsonify
 
diff --git a/shared b/shared
index 7ee8638..e83df2f 160000
--- a/shared
+++ b/shared
@@ -1 +1 @@
-Subproject commit 7ee8638d6e41de1f58aadd1f108cd7de8e920d07
+Subproject commit e83df2f742c8b64e7b4a6bc218fd1bd0a9637d21