diff --git a/.circleci/config.yml b/.circleci/config.yml
index 40d00240..4fffc467 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -86,9 +86,11 @@ commands:
             keys:
               - v1-dependencies-{{ checksum "pom.xml" }}
         - run:
-            name: Placeholder
+            name: Build and Run ValidateApiVersions
             command: |
-              false
+              mvn -s .circleci/mvn-settings.xml -T4 install -DskipTests
+              mvn -s .circleci/mvn-settings.xml -pl qqq-middleware-javalin package appassembler:assemble -DskipTests
+              qqq-middleware-javalin/target/appassembler/bin/ValidateApiVersions -r $(pwd)
 
   mvn_jar_deploy:
     steps:
diff --git a/qqq-middleware-javalin/pom.xml b/qqq-middleware-javalin/pom.xml
index c7962097..dc94f1ae 100644
--- a/qqq-middleware-javalin/pom.xml
+++ b/qqq-middleware-javalin/pom.xml
@@ -149,6 +149,43 @@
                </excludes>
             </configuration>
          </plugin>
+         <plugin>
+            <groupId>org.codehaus.mojo</groupId>
+            <artifactId>appassembler-maven-plugin</artifactId>
+            <version>1.10</version>
+            <configuration>
+               <programs>
+                  <program>
+                     <mainClass>com.kingsrook.qqq.middleware.javalin.tools.ValidateAPIVersions</mainClass>
+                     <id>ValidateApiVersions</id>
+                  </program>
+               </programs>
+            </configuration>
+         </plugin>
+         <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-shade-plugin</artifactId>
+            <version>2.4.3</version>
+            <configuration>
+               <createDependencyReducedPom>false</createDependencyReducedPom>
+               <filters>
+                  <filter>
+                     <artifact>*:*</artifact>
+                     <excludes>
+                        <exclude>META-INF/*</exclude>
+                     </excludes>
+                  </filter>
+               </filters>
+            </configuration>
+            <executions>
+               <execution>
+                  <phase>${plugin.shade.phase}</phase>
+                  <goals>
+                     <goal>shade</goal>
+                  </goals>
+               </execution>
+            </executions>
+         </plugin>
       </plugins>
    </build>