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diff --git a/slv2/plugins.h b/slv2/plugins.h
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+/* SLV2
+ * Copyright (C) 2007 Dave Robillard <http://drobilla.net>
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef __SLV2_PLUGINS_H__
+#define __SLV2_PLUGINS_H__
+
+#include <slv2/plugin.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+typedef void* SLV2Plugins;
+
+
+/** \defgroup plugins Plugin lists
+ *
+ * These functions work with lists of plugins which come from an
+ * SLV2World. These lists contain only a weak reference to an LV2 plugin
+ * in the Model.
+ *
+ * @{
+ */
+
+
+/** Free a plugin list.
+ *
+ * Freeing a plugin list does not destroy the plugins it contains (plugins
+ * are owned by the world). \a list is invalid after this call.
+ */
+void
+slv2_plugins_free(SLV2World world,
+ SLV2Plugins list);
+
+
+/** Get the number of plugins in the list.
+ */
+unsigned
+slv2_plugins_size(SLV2Plugins list);
+
+
+/** Get a plugin from the list by URI.
+ *
+ * Return value is shared (stored in \a list) and must not be freed or
+ * modified by the caller in any way.
+ *
+ * Time = O(log2(n))
+ *
+ * \return NULL if plugin with \a url not found in \a list.
+ */
+SLV2Plugin
+slv2_plugins_get_by_uri(SLV2Plugins list,
+ const char* uri);
+
+
+/** Get a plugin from the list by index.
+ *
+ * \a index has no significance other than as an index into this list.
+ * Any \a index not less than slv2_list_get_length(list) will return NULL,
+ * so all plugins in a list can be enumerated by repeated calls
+ * to this function starting with \a index = 0.
+ *
+ * Time = O(1)
+ *
+ * \return NULL if \a index out of range.
+ */
+SLV2Plugin
+slv2_plugins_get_at(SLV2Plugins list,
+ unsigned index);
+
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __SLV2_PLUGINS_H__ */
+