diff --git a/clients/google-api-services-apikeys/v2/2.0.0/README.md b/clients/google-api-services-apikeys/v2/2.0.0/README.md
index 31340e3f171..b6a7c444ada 100644
--- a/clients/google-api-services-apikeys/v2/2.0.0/README.md
+++ b/clients/google-api-services-apikeys/v2/2.0.0/README.md
@@ -22,7 +22,7 @@ Add the following lines to your `pom.xml` file:
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-apikeys</artifactId>
-      <version>v2-rev20260317-2.0.0</version>
+      <version>v2-rev20260721-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-apikeys:v2-rev20260317-2.0.0'
+  implementation 'com.google.apis:google-api-services-apikeys:v2-rev20260721-2.0.0'
 }
 ```
 
diff --git a/clients/google-api-services-apikeys/v2/2.0.0/com/google/api/services/apikeys/v2/ApiKeysService.java b/clients/google-api-services-apikeys/v2/2.0.0/com/google/api/services/apikeys/v2/ApiKeysService.java
index 99c288a9adf..20285bd81dd 100644
--- a/clients/google-api-services-apikeys/v2/2.0.0/com/google/api/services/apikeys/v2/ApiKeysService.java
+++ b/clients/google-api-services-apikeys/v2/2.0.0/com/google/api/services/apikeys/v2/ApiKeysService.java
@@ -1464,6 +1464,22 @@ public Patch setName(java.lang.String name) {
             return this;
           }
 
+          /** Optional. Defines the behavior for checking existing usage when updating a key. */
+          @com.google.api.client.util.Key
+          private java.lang.String checkExistingUsage;
+
+          /** Optional. Defines the behavior for checking existing usage when updating a key.
+           */
+          public java.lang.String getCheckExistingUsage() {
+            return checkExistingUsage;
+          }
+
+          /** Optional. Defines the behavior for checking existing usage when updating a key. */
+          public Patch setCheckExistingUsage(java.lang.String checkExistingUsage) {
+            this.checkExistingUsage = checkExistingUsage;
+            return this;
+          }
+
           /**
            * The field mask specifies which fields to be updated as part of this request. All other
            * fields are ignored. Mutable fields are: `display_name`, `restrictions`, and
diff --git a/clients/google-api-services-apikeys/v2/2.0.0/pom.xml b/clients/google-api-services-apikeys/v2/2.0.0/pom.xml
index 93da6e74150..4fcb2f7374c 100644
--- a/clients/google-api-services-apikeys/v2/2.0.0/pom.xml
+++ b/clients/google-api-services-apikeys/v2/2.0.0/pom.xml
@@ -8,8 +8,8 @@
 
   <groupId>com.google.apis</groupId>
   <artifactId>google-api-services-apikeys</artifactId>
-  <version>v2-rev20260317-2.0.0</version>
-  <name>API Keys API v2-rev20260317-2.0.0</name>
+  <version>v2-rev20260721-2.0.0</version>
+  <name>API Keys API v2-rev20260721-2.0.0</name>
   <packaging>jar</packaging>
 
   <inceptionYear>2011</inceptionYear>
diff --git a/clients/google-api-services-apikeys/v2/README.md b/clients/google-api-services-apikeys/v2/README.md
index 31340e3f171..b6a7c444ada 100644
--- a/clients/google-api-services-apikeys/v2/README.md
+++ b/clients/google-api-services-apikeys/v2/README.md
@@ -22,7 +22,7 @@ Add the following lines to your `pom.xml` file:
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-apikeys</artifactId>
-      <version>v2-rev20260317-2.0.0</version>
+      <version>v2-rev20260721-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-apikeys:v2-rev20260317-2.0.0'
+  implementation 'com.google.apis:google-api-services-apikeys:v2-rev20260721-2.0.0'
 }
 ```