diff --git a/devtools/project-core-extension-codestarts/src/main/resources/codestarts/quarkus/extension-codestarts/rest-client-codestart/base/README.tpl.qute.md b/devtools/project-core-extension-codestarts/src/main/resources/codestarts/quarkus/extension-codestarts/rest-client-codestart/base/README.tpl.qute.md
new file mode 100644
index 00000000000000..405280158877db
--- /dev/null
+++ b/devtools/project-core-extension-codestarts/src/main/resources/codestarts/quarkus/extension-codestarts/rest-client-codestart/base/README.tpl.qute.md
@@ -0,0 +1 @@
+{#include readme-header /}
\ No newline at end of file
diff --git a/devtools/project-core-extension-codestarts/src/main/resources/codestarts/quarkus/extension-codestarts/rest-client-codestart/codestart.yml b/devtools/project-core-extension-codestarts/src/main/resources/codestarts/quarkus/extension-codestarts/rest-client-codestart/codestart.yml
new file mode 100644
index 00000000000000..067c3561eecbf2
--- /dev/null
+++ b/devtools/project-core-extension-codestarts/src/main/resources/codestarts/quarkus/extension-codestarts/rest-client-codestart/codestart.yml
@@ -0,0 +1,13 @@
+name: rest-client-codestart
+ref: rest-client
+type: code
+tags: extension-codestart
+metadata:
+  title: REST Client
+  description: Invoke different services through REST with JSON
+  related-guide-section: https://quarkus.io/guides/rest-client
+language:
+  base:
+    dependencies:
+      - io.quarkus:quarkus-rest-client
+      - io.quarkus:quarkus-rest-client-jackson
diff --git a/devtools/project-core-extension-codestarts/src/main/resources/codestarts/quarkus/extension-codestarts/rest-client-codestart/java/src/main/java/org/acme/QuarkusExtensionsService.java b/devtools/project-core-extension-codestarts/src/main/resources/codestarts/quarkus/extension-codestarts/rest-client-codestart/java/src/main/java/org/acme/QuarkusExtensionsService.java
new file mode 100644
index 00000000000000..ad856adcb730df
--- /dev/null
+++ b/devtools/project-core-extension-codestarts/src/main/resources/codestarts/quarkus/extension-codestarts/rest-client-codestart/java/src/main/java/org/acme/QuarkusExtensionsService.java
@@ -0,0 +1,25 @@
+package org.acme;
+
+import org.eclipse.microprofile.rest.client.inject.RegisterRestClient;
+
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+import javax.ws.rs.QueryParam;
+import java.util.List;
+import java.util.Set;
+
+@Path("/extensions")
+@RegisterRestClient(baseUri = "https://stage.code.quarkus.io/api")
+public interface QuarkusExtensionsService {
+
+    @GET
+    Set<Extension> getById(@QueryParam("id") String id);
+
+    class Extension {
+
+        public String id;
+        public String name;
+        public String shortName;
+        public List<String> keywords;
+    }
+}
diff --git a/devtools/project-core-extension-codestarts/src/main/resources/codestarts/quarkus/extension-codestarts/rest-client-codestart/java/src/test/java/org/acme/QuarkusExtensionsRestClientTest.java b/devtools/project-core-extension-codestarts/src/main/resources/codestarts/quarkus/extension-codestarts/rest-client-codestart/java/src/test/java/org/acme/QuarkusExtensionsRestClientTest.java
new file mode 100644
index 00000000000000..038bc517709ad1
--- /dev/null
+++ b/devtools/project-core-extension-codestarts/src/main/resources/codestarts/quarkus/extension-codestarts/rest-client-codestart/java/src/test/java/org/acme/QuarkusExtensionsRestClientTest.java
@@ -0,0 +1,32 @@
+package org.acme;
+
+import io.quarkus.test.junit.QuarkusTest;
+import org.eclipse.microprofile.rest.client.inject.RestClient;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import javax.inject.Inject;
+import java.util.Set;
+
+@QuarkusTest
+public class QuarkusExtensionsRestClientTest {
+
+    @Inject
+    @RestClient
+    QuarkusExtensionsService quarkusExtensionsService;
+
+    @Test
+    public void testRestClientEndpoint() {
+        Set<QuarkusExtensionsService.Extension> restClientExtensions = quarkusExtensionsService.getById("io.quarkus:quarkus-rest-client");
+
+        Assertions.assertEquals(1, restClientExtensions.size());
+        for (QuarkusExtensionsService.Extension extension : restClientExtensions) {
+            Assertions.assertEquals("io.quarkus:quarkus-rest-client", extension.id);
+            Assertions.assertEquals("REST Client", extension.name);
+            Assertions.assertEquals("REST Client", extension.shortName);
+            Assertions.assertTrue(extension.keywords.size() > 1);
+            Assertions.assertTrue(extension.keywords.contains("rest-client"));
+        }
+    }
+
+}
diff --git a/devtools/project-core-extension-codestarts/src/main/resources/codestarts/quarkus/extension-codestarts/rest-client-codestart/kotlin/src/main/kotlin/org/acme/QuarkusExtensionsService.kt b/devtools/project-core-extension-codestarts/src/main/resources/codestarts/quarkus/extension-codestarts/rest-client-codestart/kotlin/src/main/kotlin/org/acme/QuarkusExtensionsService.kt
new file mode 100644
index 00000000000000..7c478227b414eb
--- /dev/null
+++ b/devtools/project-core-extension-codestarts/src/main/resources/codestarts/quarkus/extension-codestarts/rest-client-codestart/kotlin/src/main/kotlin/org/acme/QuarkusExtensionsService.kt
@@ -0,0 +1,16 @@
+package org.acme
+
+import org.eclipse.microprofile.rest.client.inject.RegisterRestClient
+import javax.ws.rs.GET
+import javax.ws.rs.Path
+import javax.ws.rs.QueryParam
+
+@Path("/extensions")
+@RegisterRestClient(baseUri = "https://stage.code.quarkus.io/api")
+interface QuarkusExtensionsService {
+
+    @GET
+    fun getById(@QueryParam("id") id: String): Set<Extension>
+
+    data class Extension(val id: String, val name: String, val shortName: String, val keywords: List<String>)
+}
diff --git a/devtools/project-core-extension-codestarts/src/main/resources/codestarts/quarkus/extension-codestarts/rest-client-codestart/kotlin/src/test/kotlin/org/acme/QuarkusExtensionsRestClientTest.kt b/devtools/project-core-extension-codestarts/src/main/resources/codestarts/quarkus/extension-codestarts/rest-client-codestart/kotlin/src/test/kotlin/org/acme/QuarkusExtensionsRestClientTest.kt
new file mode 100644
index 00000000000000..dc5066ca9b5369
--- /dev/null
+++ b/devtools/project-core-extension-codestarts/src/main/resources/codestarts/quarkus/extension-codestarts/rest-client-codestart/kotlin/src/test/kotlin/org/acme/QuarkusExtensionsRestClientTest.kt
@@ -0,0 +1,28 @@
+package org.acme
+
+import io.quarkus.test.junit.QuarkusTest
+import org.eclipse.microprofile.rest.client.inject.RestClient
+import org.junit.jupiter.api.Assertions
+import org.junit.jupiter.api.Test
+import javax.inject.Inject
+
+@QuarkusTest
+class QuarkusExtensionsRestClientTest {
+
+    @Inject
+    @RestClient
+    lateinit var quarkusExtensionsService: QuarkusExtensionsService
+
+    @Test
+    fun testRestClientEndpoint() {
+        val restClientExtensions = quarkusExtensionsService!!.getById("io.quarkus:quarkus-rest-client")
+        Assertions.assertEquals(1, restClientExtensions.size)
+        restClientExtensions.forEach {
+            Assertions.assertEquals("io.quarkus:quarkus-rest-client", it.id)
+            Assertions.assertEquals("REST Client", it.name)
+            Assertions.assertEquals("REST Client", it.shortName)
+            Assertions.assertTrue(it.keywords.size > 1)
+            Assertions.assertTrue(it.keywords.contains("rest-client"))
+        }
+    }
+}
diff --git a/extensions/resteasy-classic/rest-client/runtime/src/main/resources/META-INF/quarkus-extension.yaml b/extensions/resteasy-classic/rest-client/runtime/src/main/resources/META-INF/quarkus-extension.yaml
index f9c87a42a1fbbb..a52b3fe35944b5 100644
--- a/extensions/resteasy-classic/rest-client/runtime/src/main/resources/META-INF/quarkus-extension.yaml
+++ b/extensions/resteasy-classic/rest-client/runtime/src/main/resources/META-INF/quarkus-extension.yaml
@@ -8,4 +8,10 @@ metadata:
   - "microprofile-rest-client"
   guide: "https://quarkus.io/guides/rest-client"
   categories:
-  - "web"
\ No newline at end of file
+  - "web"
+  codestart:
+    name: "rest-client"
+    languages:
+      - "java"
+      - "kotlin"
+    artifact: "io.quarkus:quarkus-project-core-extension-codestarts"
diff --git a/integration-tests/devtools/src/test/java/io/quarkus/devtools/codestarts/quarkus/RESTClientCodestartTest.java b/integration-tests/devtools/src/test/java/io/quarkus/devtools/codestarts/quarkus/RESTClientCodestartTest.java
new file mode 100644
index 00000000000000..87b097ea6b8bed
--- /dev/null
+++ b/integration-tests/devtools/src/test/java/io/quarkus/devtools/codestarts/quarkus/RESTClientCodestartTest.java
@@ -0,0 +1,32 @@
+package io.quarkus.devtools.codestarts.quarkus;
+
+import static io.quarkus.devtools.codestarts.quarkus.QuarkusCodestartCatalog.Language.JAVA;
+import static io.quarkus.devtools.codestarts.quarkus.QuarkusCodestartCatalog.Language.KOTLIN;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.condition.EnabledIfSystemProperty;
+import org.junit.jupiter.api.extension.RegisterExtension;
+
+import io.quarkus.devtools.testing.codestarts.QuarkusCodestartTest;
+
+public class RESTClientCodestartTest {
+
+    @RegisterExtension
+    public static QuarkusCodestartTest codestartTest = QuarkusCodestartTest.builder()
+            .codestarts("rest-client")
+            .languages(JAVA, KOTLIN)
+            .build();
+
+    @Test
+    void testContent() throws Throwable {
+        codestartTest.checkGeneratedSource("org.acme.QuarkusExtensionsService");
+        codestartTest.checkGeneratedTestSource("org.acme.QuarkusExtensionsRestClientTest");
+    }
+
+    @Test
+    @EnabledIfSystemProperty(named = "build-projects", matches = "true")
+    void buildAllProjectsForLocalUse() throws Throwable {
+        codestartTest.buildAllProjects();
+    }
+
+}
diff --git a/integration-tests/devtools/src/test/resources/__snapshots__/RESTClientCodestartTest/testContent/src_main_java_ilove_quark_us_QuarkusExtensionsService.java b/integration-tests/devtools/src/test/resources/__snapshots__/RESTClientCodestartTest/testContent/src_main_java_ilove_quark_us_QuarkusExtensionsService.java
new file mode 100644
index 00000000000000..3672bc96092add
--- /dev/null
+++ b/integration-tests/devtools/src/test/resources/__snapshots__/RESTClientCodestartTest/testContent/src_main_java_ilove_quark_us_QuarkusExtensionsService.java
@@ -0,0 +1,25 @@
+package ilove.quark.us;
+
+import org.eclipse.microprofile.rest.client.inject.RegisterRestClient;
+
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+import javax.ws.rs.QueryParam;
+import java.util.List;
+import java.util.Set;
+
+@Path("/extensions")
+@RegisterRestClient(baseUri = "https://stage.code.quarkus.io/api")
+public interface QuarkusExtensionsService {
+
+    @GET
+    Set<Extension> getById(@QueryParam("id") String id);
+
+    class Extension {
+
+        public String id;
+        public String name;
+        public String shortName;
+        public List<String> keywords;
+    }
+}
diff --git a/integration-tests/devtools/src/test/resources/__snapshots__/RESTClientCodestartTest/testContent/src_main_kotlin_ilove_quark_us_QuarkusExtensionsService.kt b/integration-tests/devtools/src/test/resources/__snapshots__/RESTClientCodestartTest/testContent/src_main_kotlin_ilove_quark_us_QuarkusExtensionsService.kt
new file mode 100644
index 00000000000000..13285ceed815ff
--- /dev/null
+++ b/integration-tests/devtools/src/test/resources/__snapshots__/RESTClientCodestartTest/testContent/src_main_kotlin_ilove_quark_us_QuarkusExtensionsService.kt
@@ -0,0 +1,16 @@
+package ilove.quark.us
+
+import org.eclipse.microprofile.rest.client.inject.RegisterRestClient
+import javax.ws.rs.GET
+import javax.ws.rs.Path
+import javax.ws.rs.QueryParam
+
+@Path("/extensions")
+@RegisterRestClient(baseUri = "https://stage.code.quarkus.io/api")
+interface QuarkusExtensionsService {
+
+    @GET
+    fun getById(@QueryParam("id") id: String): Set<Extension>
+
+    data class Extension(val id: String, val name: String, val shortName: String, val keywords: List<String>)
+}
diff --git a/integration-tests/devtools/src/test/resources/__snapshots__/RESTClientCodestartTest/testContent/src_test_java_ilove_quark_us_QuarkusExtensionsRestClientTest.java b/integration-tests/devtools/src/test/resources/__snapshots__/RESTClientCodestartTest/testContent/src_test_java_ilove_quark_us_QuarkusExtensionsRestClientTest.java
new file mode 100644
index 00000000000000..7d05ac86b0e623
--- /dev/null
+++ b/integration-tests/devtools/src/test/resources/__snapshots__/RESTClientCodestartTest/testContent/src_test_java_ilove_quark_us_QuarkusExtensionsRestClientTest.java
@@ -0,0 +1,32 @@
+package ilove.quark.us;
+
+import io.quarkus.test.junit.QuarkusTest;
+import org.eclipse.microprofile.rest.client.inject.RestClient;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import javax.inject.Inject;
+import java.util.Set;
+
+@QuarkusTest
+public class QuarkusExtensionsRestClientTest {
+
+    @Inject
+    @RestClient
+    QuarkusExtensionsService quarkusExtensionsService;
+
+    @Test
+    public void testRestClientEndpoint() {
+        Set<QuarkusExtensionsService.Extension> restClientExtensions = quarkusExtensionsService.getById("io.quarkus:quarkus-rest-client");
+
+        Assertions.assertEquals(1, restClientExtensions.size());
+        for (QuarkusExtensionsService.Extension extension : restClientExtensions) {
+            Assertions.assertEquals("io.quarkus:quarkus-rest-client", extension.id);
+            Assertions.assertEquals("REST Client", extension.name);
+            Assertions.assertEquals("REST Client", extension.shortName);
+            Assertions.assertTrue(extension.keywords.size() > 1);
+            Assertions.assertTrue(extension.keywords.contains("rest-client"));
+        }
+    }
+
+}
diff --git a/integration-tests/devtools/src/test/resources/__snapshots__/RESTClientCodestartTest/testContent/src_test_kotlin_ilove_quark_us_QuarkusExtensionsRestClientTest.kt b/integration-tests/devtools/src/test/resources/__snapshots__/RESTClientCodestartTest/testContent/src_test_kotlin_ilove_quark_us_QuarkusExtensionsRestClientTest.kt
new file mode 100644
index 00000000000000..cba956fa5d379a
--- /dev/null
+++ b/integration-tests/devtools/src/test/resources/__snapshots__/RESTClientCodestartTest/testContent/src_test_kotlin_ilove_quark_us_QuarkusExtensionsRestClientTest.kt
@@ -0,0 +1,28 @@
+package ilove.quark.us
+
+import io.quarkus.test.junit.QuarkusTest
+import org.eclipse.microprofile.rest.client.inject.RestClient
+import org.junit.jupiter.api.Assertions
+import org.junit.jupiter.api.Test
+import javax.inject.Inject
+
+@QuarkusTest
+class QuarkusExtensionsRestClientTest {
+
+    @Inject
+    @RestClient
+    lateinit var quarkusExtensionsService: QuarkusExtensionsService
+
+    @Test
+    fun testRestClientEndpoint() {
+        val restClientExtensions = quarkusExtensionsService!!.getById("io.quarkus:quarkus-rest-client")
+        Assertions.assertEquals(1, restClientExtensions.size)
+        restClientExtensions.forEach {
+            Assertions.assertEquals("io.quarkus:quarkus-rest-client", it.id)
+            Assertions.assertEquals("REST Client", it.name)
+            Assertions.assertEquals("REST Client", it.shortName)
+            Assertions.assertTrue(it.keywords.size > 1)
+            Assertions.assertTrue(it.keywords.contains("rest-client"))
+        }
+    }
+}