diff --git a/src/ol/format/gmlformat.js b/src/ol/format/gmlformat.js
index 25c2aeb05b..7c6bf515d0 100644
--- a/src/ol/format/gmlformat.js
+++ b/src/ol/format/gmlformat.js
@@ -28,6 +28,7 @@ goog.require('ol.xml');
  * @param {olx.format.GMLOptions=} opt_options
  *     Optional configuration object.
  * @extends {ol.format.XMLFeature}
+ * @todo api
  */
 ol.format.GML = function(opt_options) {
   var options = /** @type {olx.format.GMLOptions} */
@@ -1038,6 +1039,17 @@ ol.format.GML.prototype.readGeometryFromNode = function(node) {
 };
 
 
+/**
+ * Read all features from a GML FeatureCollection.
+ *
+ * @function
+ * @param {ArrayBuffer|Document|Node|Object|string} source Source.
+ * @return {Array.<ol.Feature>} Features.
+ * @todo api
+ */
+ol.format.GML.prototype.readFeatures;
+
+
 /**
  * @inheritDoc
  */
@@ -1669,6 +1681,15 @@ ol.format.GML.prototype.writeGeometryNode = function(geometry) {
 };
 
 
+/**
+ * Encode an array of features in GML 3.1.1 Simple Features.
+ *
+ * @param {Array.<ol.Feature>} features Features.
+ * @return {ArrayBuffer|Node|Object|string} Result.
+ */
+ol.format.GML.prototype.writeFeatures;
+
+
 /**
  * @inheritDoc
  */
diff --git a/src/ol/format/wfsformat.js b/src/ol/format/wfsformat.js
index 3f20f03973..34c6bb9037 100644
--- a/src/ol/format/wfsformat.js
+++ b/src/ol/format/wfsformat.js
@@ -79,6 +79,17 @@ ol.format.WFS.schemaLocation_ = 'http://www.opengis.net/wfs ' +
     'http://schemas.opengis.net/wfs/1.1.0/wfs.xsd';
 
 
+/**
+ * Read all features from a WFS FeatureCollection.
+ *
+ * @function
+ * @param {ArrayBuffer|Document|Node|Object|string} source Source.
+ * @return {Array.<ol.Feature>} Features.
+ * @todo api
+ */
+ol.format.WFS.prototype.readFeatures;
+
+
 /**
  * @inheritDoc
  */
@@ -679,6 +690,7 @@ ol.format.WFS.prototype.writeTransaction = function(inserts, updates, deletes,
  * @function
  * @param {ArrayBuffer|Document|Node|Object|string} source Source.
  * @return {?ol.proj.Projection} Projection.
+ * @todo api
  */
 ol.format.WFS.prototype.readProjection;