diff --git a/lib/wp/base-endpoint.c b/lib/wp/base-endpoint.c
index fbd79959..8d2fe626 100644
--- a/lib/wp/base-endpoint.c
+++ b/lib/wp/base-endpoint.c
@@ -372,7 +372,7 @@ wp_base_endpoint_register (WpBaseEndpoint * self)
   g_info ("WpBaseEndpoint:%p registering '%s' (%s)", self, priv->name,
       priv->media_class);
 
-  wp_core_register_object (core, g_object_ref (self));
+  wp_registry_register_object (wp_core_get_registry (core), g_object_ref (self));
 }
 
 /**
@@ -402,7 +402,7 @@ wp_base_endpoint_unregister (WpBaseEndpoint * self)
     g_info ("WpBaseEndpoint:%p unregistering '%s' (%s)", self, priv->name,
         priv->media_class);
 
-    wp_core_remove_object (core, self);
+    wp_registry_remove_object (wp_core_get_registry (core), self);
   }
 }
 
diff --git a/lib/wp/configuration.c b/lib/wp/configuration.c
index 9b58371a..34bd0524 100644
--- a/lib/wp/configuration.c
+++ b/lib/wp/configuration.c
@@ -87,10 +87,12 @@ wp_configuration_get_instance (WpCore *core)
 
   g_return_val_if_fail (WP_IS_CORE (core), NULL);
 
-  self = wp_core_find_object (core, (GEqualFunc) WP_IS_CONFIGURATION, NULL);
+  self = wp_registry_find_object (wp_core_get_registry (core),
+      (GEqualFunc) WP_IS_CONFIGURATION, NULL);
   if (!self) {
     self = g_object_new (WP_TYPE_CONFIGURATION, NULL);
-    wp_core_register_object (core, g_object_ref (self));
+    wp_registry_register_object (wp_core_get_registry (core),
+        g_object_ref (self));
   }
 
   return self;
diff --git a/lib/wp/core.c b/lib/wp/core.c
index 21af3c2f..d5032ed3 100644
--- a/lib/wp/core.c
+++ b/lib/wp/core.c
@@ -73,6 +73,28 @@ wp_loop_source_new (void)
  * WpCore
  */
 
+struct _WpCore
+{
+  GObject parent;
+
+  /* main loop integration */
+  GMainContext *context;
+
+  /* extra properties */
+  WpProperties *properties;
+
+  /* pipewire main objects */
+  struct pw_context *pw_context;
+  struct pw_core *pw_core;
+
+  /* pipewire main listeners */
+  struct spa_hook core_listener;
+  struct spa_hook proxy_core_listener;
+
+  WpRegistry registry;
+  GHashTable *async_tasks; // <int seq, GTask*>
+};
+
 enum {
   PROP_0,
   PROP_CONTEXT,
@@ -89,7 +111,6 @@ enum {
 
 static guint32 signals[NUM_SIGNALS];
 
-
 G_DEFINE_TYPE (WpCore, wp_core, G_TYPE_OBJECT)
 
 static void
@@ -402,3 +423,15 @@ wp_core_sync_finish (WpCore * self, GAsyncResult * res, GError ** error)
 
   return g_task_propagate_boolean (G_TASK (res), error);
 }
+
+WpRegistry *
+wp_core_get_registry (WpCore * self)
+{
+  return &self->registry;
+}
+
+WpCore *
+wp_registry_get_core (WpRegistry * self)
+{
+  return SPA_CONTAINER_OF (self, WpCore, registry);
+}
diff --git a/lib/wp/factory.c b/lib/wp/factory.c
index fca0fcdd..91809a73 100644
--- a/lib/wp/factory.c
+++ b/lib/wp/factory.c
@@ -72,7 +72,7 @@ wp_factory_new (WpCore * core, const gchar * name, WpFactoryFunc func)
 
   g_info ("WpFactory:%p new factory: %s", f, name);
 
-  wp_core_register_object (core, f);
+  wp_registry_register_object (wp_core_get_registry (core), f);
 
   return f;
 }
@@ -124,8 +124,8 @@ wp_factory_find (WpCore * core, const gchar * name)
 {
   GObject *f;
   GQuark q = g_quark_from_string (name);
-  f = wp_core_find_object (core, (GEqualFunc) find_factory_func,
-      GUINT_TO_POINTER (q));
+  f = wp_registry_find_object (wp_core_get_registry (core),
+      (GEqualFunc) find_factory_func, GUINT_TO_POINTER (q));
   return f ? WP_FACTORY (f) : NULL;
 }
 
diff --git a/lib/wp/module.c b/lib/wp/module.c
index a77fc951..5eee2fa3 100644
--- a/lib/wp/module.c
+++ b/lib/wp/module.c
@@ -139,7 +139,8 @@ wp_module_load (WpCore * core, const gchar * abi, const gchar * module_name,
     return NULL;
   }
 
-  wp_core_register_object (core, g_object_ref (module));
+  wp_registry_register_object (wp_core_get_registry (core),
+      g_object_ref (module));
 
   return module;
 }
diff --git a/lib/wp/object-manager.c b/lib/wp/object-manager.c
index f0a1d99a..4124b9a0 100644
--- a/lib/wp/object-manager.c
+++ b/lib/wp/object-manager.c
@@ -723,7 +723,7 @@ wp_registry_prepare_new_global (WpRegistry * self, guint32 id,
     WpProxy *proxy, const struct spa_dict *props)
 {
   g_autoptr (WpGlobal) global = NULL;
-  WpCore *core = SPA_CONTAINER_OF (self, WpCore, registry);
+  WpCore *core = wp_registry_get_core (self);
 
   g_return_val_if_fail (flag != 0, NULL);
   g_return_val_if_fail (self->globals->len <= id ||
@@ -782,8 +782,8 @@ wp_registry_prepare_new_global (WpRegistry * self, guint32 id,
 }
 
 /*
- * wp_core_find_object:
- * @core: the core
+ * wp_registry_find_object:
+ * @reg: the registry
  * @func: (scope call): a function that takes the object being searched
  *   as the first argument and @data as the second. it should return TRUE if
  *   the object is found or FALSE otherwise
@@ -795,16 +795,11 @@ wp_registry_prepare_new_global (WpRegistry * self, guint32 id,
  *   or NULL if not found
  */
 gpointer
-wp_core_find_object (WpCore * core, GEqualFunc func, gconstpointer data)
+wp_registry_find_object (WpRegistry *reg, GEqualFunc func, gconstpointer data)
 {
-  WpRegistry *reg;
   GObject *object;
   guint i;
 
-  g_return_val_if_fail (WP_IS_CORE (core), NULL);
-
-  reg = &core->registry;
-
   /* prevent bad things when called from within wp_registry_clear() */
   if (G_UNLIKELY (!reg->objects))
     return NULL;
@@ -819,8 +814,8 @@ wp_core_find_object (WpCore * core, GEqualFunc func, gconstpointer data)
 }
 
 /*
- * wp_core_register_object:
- * @core: the core
+ * wp_registry_register_object:
+ * @reg: the registry
  * @obj: (transfer full) (type GObject*): the object to register
  *
  * Registers @obj with the core, making it appear on #WpObjectManager
@@ -828,15 +823,10 @@ wp_core_find_object (WpCore * core, GEqualFunc func, gconstpointer data)
  * until it is removed.
  */
 void
-wp_core_register_object (WpCore * core, gpointer obj)
+wp_registry_register_object (WpRegistry *reg, gpointer obj)
 {
-  WpRegistry *reg;
-
-  g_return_if_fail (WP_IS_CORE (core));
   g_return_if_fail (G_IS_OBJECT (obj));
 
-  reg = &core->registry;
-
   /* prevent bad things when called from within wp_registry_clear() */
   if (G_UNLIKELY (!reg->objects)) {
     g_object_unref (obj);
@@ -850,22 +840,17 @@ wp_core_register_object (WpCore * core, gpointer obj)
 }
 
 /*
- * wp_core_remove_object:
- * @core: the core
+ * wp_registry_remove_object:
+ * @reg: the registry
  * @obj: (transfer none) (type GObject*): a pointer to the object to remove
  *
  * Detaches and unrefs the specified object from this core
  */
 void
-wp_core_remove_object (WpCore * core, gpointer obj)
+wp_registry_remove_object (WpRegistry *reg, gpointer obj)
 {
-  WpRegistry *reg;
-
-  g_return_if_fail (WP_IS_CORE (core));
   g_return_if_fail (G_IS_OBJECT (obj));
 
-  reg = &core->registry;
-
   /* prevent bad things when called from within wp_registry_clear() */
   if (G_UNLIKELY (!reg->objects))
     return;
@@ -894,7 +879,7 @@ wp_core_install_object_manager (WpCore * core, WpObjectManager * om)
   g_return_if_fail (WP_IS_CORE (core));
   g_return_if_fail (WP_IS_OBJECT_MANAGER (om));
 
-  reg = &core->registry;
+  reg = wp_core_get_registry (core);
 
   g_object_weak_ref (G_OBJECT (om), object_manager_destroyed, reg);
   g_ptr_array_add (reg->object_managers, om);
diff --git a/lib/wp/policy.c b/lib/wp/policy.c
index a2ddff8a..8f0046a3 100644
--- a/lib/wp/policy.c
+++ b/lib/wp/policy.c
@@ -107,8 +107,8 @@ wp_policy_manager_get_instance (WpCore *core)
 
   g_return_val_if_fail (WP_IS_CORE (core), NULL);
 
-  mgr = wp_core_find_object (core, (GEqualFunc) WP_IS_POLICY_MANAGER,
-      NULL);
+  mgr = wp_registry_find_object (wp_core_get_registry (core),
+      (GEqualFunc) WP_IS_POLICY_MANAGER, NULL);
   if (G_UNLIKELY (!mgr)) {
     mgr = g_object_new (WP_TYPE_POLICY_MANAGER, NULL);
 
@@ -127,7 +127,8 @@ wp_policy_manager_get_instance (WpCore *core)
         WP_PROXY_FEATURES_STANDARD | WP_SESSION_FEATURE_DEFAULT_ENDPOINT);
     wp_core_install_object_manager (core, mgr->sessions_om);
 
-    wp_core_register_object (core, g_object_ref (mgr));
+    wp_registry_register_object (wp_core_get_registry (core),
+        g_object_ref (mgr));
   }
 
   return mgr;
@@ -403,7 +404,8 @@ wp_policy_unregister (WpPolicy *self)
 
   core = g_weak_ref_get (&priv->core);
   if (core) {
-    mgr = wp_core_find_object (core, (GEqualFunc) WP_IS_POLICY_MANAGER, NULL);
+    mgr = wp_registry_find_object (wp_core_get_registry (core),
+        (GEqualFunc) WP_IS_POLICY_MANAGER, NULL);
     if (G_UNLIKELY (!mgr)) {
       g_critical ("WpPolicy:%p seems registered, but the policy manager "
           "is absent", self);
@@ -429,7 +431,8 @@ wp_policy_notify_changed (WpPolicy *self)
 
   core = g_weak_ref_get (&priv->core);
   if (core) {
-    mgr = wp_core_find_object (core, (GEqualFunc) WP_IS_POLICY_MANAGER, NULL);
+    mgr = wp_registry_find_object (wp_core_get_registry (core),
+        (GEqualFunc) WP_IS_POLICY_MANAGER, NULL);
     if (G_UNLIKELY (!mgr)) {
       g_critical ("WpPolicy:%p seems registered, but the policy manager "
           "is absent", self);
@@ -464,8 +467,8 @@ wp_policy_find_endpoint (WpCore *core, GVariant *props,
   g_return_val_if_fail (g_variant_is_of_type (props, G_VARIANT_TYPE_VARDICT), NULL);
   g_return_val_if_fail (stream_id != NULL, NULL);
 
-  mgr = wp_core_find_object (core,
-      (GEqualFunc) WP_IS_POLICY_MANAGER, NULL);
+  mgr = wp_registry_find_object (wp_core_get_registry (core),
+        (GEqualFunc) WP_IS_POLICY_MANAGER, NULL);
   if (mgr) {
     for (l = g_list_first (mgr->policies); l; l = g_list_next (l)) {
       p = WP_POLICY (l->data);
diff --git a/lib/wp/private.h b/lib/wp/private.h
index db20a510..9f626539 100644
--- a/lib/wp/private.h
+++ b/lib/wp/private.h
@@ -47,34 +47,16 @@ WpGlobal * wp_registry_prepare_new_global (WpRegistry * self, guint32 id,
     guint32 permissions, guint32 flag, GType type,
     WpProxy *proxy, const struct spa_dict *props);
 
+gpointer wp_registry_find_object (WpRegistry *reg, GEqualFunc func,
+    gconstpointer data);
+void wp_registry_register_object (WpRegistry *reg, gpointer obj);
+void wp_registry_remove_object (WpRegistry *reg, gpointer obj);
+
+WpCore * wp_registry_get_core (WpRegistry * self);
+
 /* core */
 
-struct _WpCore
-{
-  GObject parent;
-
-  /* main loop integration */
-  GMainContext *context;
-
-  /* extra properties */
-  WpProperties *properties;
-
-  /* pipewire main objects */
-  struct pw_context *pw_context;
-  struct pw_core *pw_core;
-
-  /* pipewire main listeners */
-  struct spa_hook core_listener;
-  struct spa_hook proxy_core_listener;
-
-  WpRegistry registry;
-  GHashTable *async_tasks; // <int seq, GTask*>
-};
-
-gpointer wp_core_find_object (WpCore * self, GEqualFunc func,
-    gconstpointer data);
-void wp_core_register_object (WpCore * self, gpointer obj);
-void wp_core_remove_object (WpCore * self, gpointer obj);
+WpRegistry * wp_core_get_registry (WpCore * self);
 
 /* global */
 
diff --git a/lib/wp/proxy.c b/lib/wp/proxy.c
index 33b89628..d2b1f580 100644
--- a/lib/wp/proxy.c
+++ b/lib/wp/proxy.c
@@ -120,7 +120,7 @@ proxy_event_bound (void *data, uint32_t global_id)
   if (!priv->global) {
     g_autoptr (WpCore) core = g_weak_ref_get (&priv->core);
 
-    priv->global = wp_registry_prepare_new_global (&core->registry,
+    priv->global = wp_registry_prepare_new_global (wp_core_get_registry (core),
         global_id, PW_PERM_RWX, WP_GLOBAL_FLAG_OWNED_BY_PROXY,
         G_TYPE_FROM_INSTANCE (self), self, NULL);
   }