diff --git a/discovery/customsearch-v1.json b/discovery/customsearch-v1.json
index 1cef0eced1..9e9b669d1a 100644
--- a/discovery/customsearch-v1.json
+++ b/discovery/customsearch-v1.json
@@ -97,7 +97,7 @@
     "cse": {
       "methods": {
         "list": {
-          "description": "Returns metadata about the search performed, metadata about the custom\nsearch engine used for the search, and the search results.",
+          "description": "Returns metadata about the search performed, metadata about the\nengine used for the search, and the search results.",
           "flatPath": "customsearch/v1",
           "httpMethod": "GET",
           "id": "search.cse.list",
@@ -114,7 +114,7 @@
               "type": "string"
             },
             "cx": {
-              "description": "The custom search engine ID to use for this request.",
+              "description": "The Programmable Search Engine ID to use for this request.",
               "location": "query",
               "type": "string"
             },
@@ -328,7 +328,7 @@
         "siterestrict": {
           "methods": {
             "list": {
-              "description": "Returns metadata about the search performed, metadata about the custom\nsearch engine used for the search, and the search results. Uses a small set\nof url patterns.",
+              "description": "Returns metadata about the search performed, metadata about the\nengine used for the search, and the search results. Uses a small set\nof url patterns.",
               "flatPath": "customsearch/v1/siterestrict",
               "httpMethod": "GET",
               "id": "search.cse.siterestrict.list",
@@ -345,7 +345,7 @@
                   "type": "string"
                 },
                 "cx": {
-                  "description": "The custom search engine ID to use for this request.",
+                  "description": "The Programmable Search Engine ID to use for this request.",
                   "location": "query",
                   "type": "string"
                 },
@@ -559,7 +559,7 @@
       }
     }
   },
-  "revision": "20200715",
+  "revision": "20200723",
   "rootUrl": "https://customsearch.googleapis.com/",
   "schemas": {
     "Promotion": {
@@ -803,7 +803,7 @@
                     "type": "string"
                   },
                   "cx": {
-                    "description": "The identifier of a custom search engine created using the Custom Search\n[Control Panel](https://cse.google.com/). This is a custom property not\ndefined in the OpenSearch spec. This parameter is **required**.",
+                    "description": "The identifier of an engine created using the Programmable Search Engine\n[Control Panel](https://programmablesearchengine.google.com/). This is a\ncustom property not defined in the OpenSearch spec. This parameter is\n**required**.",
                     "type": "string"
                   },
                   "dateRestrict": {
@@ -961,7 +961,7 @@
                     "type": "string"
                   },
                   "cx": {
-                    "description": "The identifier of a custom search engine created using the Custom Search\n[Control Panel](https://cse.google.com/). This is a custom property not\ndefined in the OpenSearch spec. This parameter is **required**.",
+                    "description": "The identifier of an engine created using the Programmable Search Engine\n[Control Panel](https://programmablesearchengine.google.com/). This is a\ncustom property not defined in the OpenSearch spec. This parameter is\n**required**.",
                     "type": "string"
                   },
                   "dateRestrict": {
@@ -1119,7 +1119,7 @@
                     "type": "string"
                   },
                   "cx": {
-                    "description": "The identifier of a custom search engine created using the Custom Search\n[Control Panel](https://cse.google.com/). This is a custom property not\ndefined in the OpenSearch spec. This parameter is **required**.",
+                    "description": "The identifier of an engine created using the Programmable Search Engine\n[Control Panel](https://programmablesearchengine.google.com/). This is a\ncustom property not defined in the OpenSearch spec. This parameter is\n**required**.",
                     "type": "string"
                   },
                   "dateRestrict": {
@@ -1310,7 +1310,7 @@
               "type": "string"
             },
             "type": {
-              "description": "The MIME type of the OpenSearch URL template for the Custom Search API.",
+              "description": "The MIME type of the OpenSearch URL template for the Custom Search JSON\nAPI.",
               "type": "string"
             }
           },
diff --git a/src/apis/customsearch/v1.ts b/src/apis/customsearch/v1.ts
index 27c51a3a96..c792326418 100644
--- a/src/apis/customsearch/v1.ts
+++ b/src/apis/customsearch/v1.ts
@@ -406,7 +406,7 @@ export namespace customsearch_v1 {
 
     /**
      * search.cse.list
-     * @desc Returns metadata about the search performed, metadata about the custom search engine used for the search, and the search results.
+     * @desc Returns metadata about the search performed, metadata about the engine used for the search, and the search results.
      * @example
      * // Before running the sample:
      * // - Enable the API at:
@@ -456,7 +456,7 @@ export namespace customsearch_v1 {
      *     // Values](https://developers.google.com/custom-search/docs/xml_results_appendices#countryCollections)
      *     // page for a list of valid values for this parameter.
      *     cr: 'placeholder-value',
-     *     // The custom search engine ID to use for this request.
+     *     // The Programmable Search Engine ID to use for this request.
      *     cx: 'placeholder-value',
      *     // Restricts results to URLs based on date. Supported values include:
      *     //
@@ -764,7 +764,7 @@ export namespace customsearch_v1 {
      * @param {object} params Parameters for request
      * @param {string=} params.c2coff Enables or disables [Simplified and Traditional Chinese Search](https://developers.google.com/custom-search/docs/xml_results#chineseSearch).  The default value for this parameter is 0 (zero), meaning that the feature is enabled. Supported values are:  * `1`: Disabled  * `0`: Enabled (default)
      * @param {string=} params.cr Restricts search results to documents originating in a particular country. You may use [Boolean operators](https://developers.google.com/custom-search/docs/xml_results_appendices#booleanOperators) in the cr parameter's value.  Google Search determines the country of a document by analyzing:  * the top-level domain (TLD) of the document's URL  * the geographic location of the Web server's IP address  See the [Country Parameter Values](https://developers.google.com/custom-search/docs/xml_results_appendices#countryCollections) page for a list of valid values for this parameter.
-     * @param {string=} params.cx The custom search engine ID to use for this request.
+     * @param {string=} params.cx The Programmable Search Engine ID to use for this request.
      * @param {string=} params.dateRestrict Restricts results to URLs based on date. Supported values include:  * `d[number]`: requests results from the specified number of past days.  * `w[number]`: requests results from the specified number of past weeks.  * `m[number]`: requests results from the specified number of past months.  * `y[number]`: requests results from the specified number of past years.
      * @param {string=} params.exactTerms Identifies a phrase that all documents in the search results must contain.
      * @param {string=} params.excludeTerms Identifies a word or phrase that should not appear in any documents in the search results.
@@ -883,7 +883,7 @@ export namespace customsearch_v1 {
      */
     cr?: string;
     /**
-     * The custom search engine ID to use for this request.
+     * The Programmable Search Engine ID to use for this request.
      */
     cx?: string;
     /**
@@ -1008,7 +1008,7 @@ export namespace customsearch_v1 {
 
     /**
      * search.cse.siterestrict.list
-     * @desc Returns metadata about the search performed, metadata about the custom search engine used for the search, and the search results. Uses a small set of url patterns.
+     * @desc Returns metadata about the search performed, metadata about the engine used for the search, and the search results. Uses a small set of url patterns.
      * @example
      * // Before running the sample:
      * // - Enable the API at:
@@ -1058,7 +1058,7 @@ export namespace customsearch_v1 {
      *     // Values](https://developers.google.com/custom-search/docs/xml_results_appendices#countryCollections)
      *     // page for a list of valid values for this parameter.
      *     cr: 'placeholder-value',
-     *     // The custom search engine ID to use for this request.
+     *     // The Programmable Search Engine ID to use for this request.
      *     cx: 'placeholder-value',
      *     // Restricts results to URLs based on date. Supported values include:
      *     //
@@ -1366,7 +1366,7 @@ export namespace customsearch_v1 {
      * @param {object} params Parameters for request
      * @param {string=} params.c2coff Enables or disables [Simplified and Traditional Chinese Search](https://developers.google.com/custom-search/docs/xml_results#chineseSearch).  The default value for this parameter is 0 (zero), meaning that the feature is enabled. Supported values are:  * `1`: Disabled  * `0`: Enabled (default)
      * @param {string=} params.cr Restricts search results to documents originating in a particular country. You may use [Boolean operators](https://developers.google.com/custom-search/docs/xml_results_appendices#booleanOperators) in the cr parameter's value.  Google Search determines the country of a document by analyzing:  * the top-level domain (TLD) of the document's URL  * the geographic location of the Web server's IP address  See the [Country Parameter Values](https://developers.google.com/custom-search/docs/xml_results_appendices#countryCollections) page for a list of valid values for this parameter.
-     * @param {string=} params.cx The custom search engine ID to use for this request.
+     * @param {string=} params.cx The Programmable Search Engine ID to use for this request.
      * @param {string=} params.dateRestrict Restricts results to URLs based on date. Supported values include:  * `d[number]`: requests results from the specified number of past days.  * `w[number]`: requests results from the specified number of past weeks.  * `m[number]`: requests results from the specified number of past months.  * `y[number]`: requests results from the specified number of past years.
      * @param {string=} params.exactTerms Identifies a phrase that all documents in the search results must contain.
      * @param {string=} params.excludeTerms Identifies a word or phrase that should not appear in any documents in the search results.
@@ -1490,7 +1490,7 @@ export namespace customsearch_v1 {
      */
     cr?: string;
     /**
-     * The custom search engine ID to use for this request.
+     * The Programmable Search Engine ID to use for this request.
      */
     cx?: string;
     /**