diff --git a/.env.example b/.env.example
index 4989e6f..1f77004 100644
--- a/.env.example
+++ b/.env.example
@@ -1,2 +1,5 @@
 CORBADO_API_SECRET=corbado1_xxx
 CORBADO_PROJECT_ID=pro-xxx
+CORBADO_BACKEND_API=
+CORBADO_FRONTEND_API=
+
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2337c46..cd52cbe 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -101,6 +101,7 @@ jobs:
             CORBADO_API_SECRET: ${{ secrets.CORBADO_API_SECRET }}
             CORBADO_PROJECT_ID: ${{ secrets.CORBADO_PROJECT_ID }}
             CORBADO_BACKEND_API: ${{ vars.CORBADO_BACKEND_API }}
+			CORBADO_FRONTEND_API: ${{ vars.CORBADO_FRONTEND_API }}
         run: mvn --batch-mode --update-snapshots verify -DskipInstall
 
   deploy:
diff --git a/src/main/java/com/corbado/sdk/Config.java b/src/main/java/com/corbado/sdk/Config.java
index ba279e8..2182485 100644
--- a/src/main/java/com/corbado/sdk/Config.java
+++ b/src/main/java/com/corbado/sdk/Config.java
@@ -2,7 +2,9 @@
 
 import java.net.MalformedURLException;
 import java.net.URL;
+
 import org.apache.commons.lang3.StringUtils;
+
 import lombok.Builder;
 import lombok.Getter;
 import lombok.NonNull;
@@ -40,8 +42,8 @@ public class Config {
   /** The api secret with custom setter. Must be provided. */
   @NonNull @Getter private String apiSecret;
 
-  /** The backend api with custom setter. Default value: "https://backendapi.cloud.corbado.io/v2" */
-  @Getter @Builder.Default private String backendApi = "https://backendapi.cloud.corbado.io/v2";
+  /** The backend api with custom setter. */
+  @Getter private String backendApi;
 
   /** The short session cookie name. Default value: "cbo_short_session" */
   @Getter @Setter @Builder.Default private String shortSessionCookieName = "cbo_short_session";
@@ -61,38 +63,6 @@ public class Config {
   /** The cname. Replaces issuer field if present. */
   @Getter @Setter private String cname;
 
-  // Constructors
-  /**
-   * Instantiates a new config.
-   *
-   * @param projectId the project id
-   * @param apiSecret the api secret
-   */
-  public Config(@NonNull final String projectId, @NonNull final String apiSecret) {
-
-    setProjectId(projectId); // set and validate
-    setApiSecret(apiSecret);
-
-    // default values
-    setFrontendApi(projectId);
-    setIssuer(this.frontendApi);
-  }
-
-  /**
-   * Instantiates a new config.
-   *
-   * @param projectId the project id
-   * @param apiSecret the api secret
-   * @param backendApi the backend api
-   */
-  public Config(
-      @NonNull final String projectId,
-      @NonNull final String apiSecret,
-      @NonNull final String backendApi) {
-    this(projectId, apiSecret);
-    setBackendApi(backendApi);
-  }
-
   // Custom Getters and Setters
   /**
    * Sets the api secret.
@@ -136,8 +106,6 @@ public void setBackendApi(String backendApi) {
    */
   public void setFrontendApi(String frontendApi) {
     frontendApi = StringUtils.trim(frontendApi);
-    frontendApi = StringUtils.prependIfMissing(frontendApi, HTTPS);
-    frontendApi = StringUtils.appendIfMissing(frontendApi, ".frontendapi.corbado.io");
 
     try {
       new URL(frontendApi); // Validate URL syntax
@@ -178,10 +146,10 @@ public void setProjectId(@NonNull String projectId) {
   public Config(
       @NonNull final String projectId,
       @NonNull final String apiSecret,
-      final String backendApi,
+      @NonNull final String backendApi,
       final String shortSessionCookieName,
       final String issuer,
-      final String frontendApi,
+      @NonNull final String frontendApi,
       final Integer shortSessionLength,
       final boolean cacheKeys,
       String cname) {
@@ -190,11 +158,8 @@ public Config(
     setApiSecret(apiSecret);
     setBackendApi(backendApi);
     setShortSessionCookieName(shortSessionCookieName);
-    if (StringUtils.isEmpty(frontendApi)) {
-      setFrontendApi(projectId);
-    } else {
-      setFrontendApi(frontendApi);
-    }
+    setFrontendApi(frontendApi);
+
     setShortSessionLength(shortSessionLength);
     setCacheKeys(cacheKeys);
     setCname(cname);
diff --git a/src/test/java/com/corbado/util/TestUtils.java b/src/test/java/com/corbado/util/TestUtils.java
index a897091..7d01cee 100644
--- a/src/test/java/com/corbado/util/TestUtils.java
+++ b/src/test/java/com/corbado/util/TestUtils.java
@@ -26,6 +26,9 @@ public class TestUtils {
   /** The Constant CORBADO_BACKEND_API. */
   public static final String CORBADO_BACKEND_API = "CORBADO_BACKEND_API";
 
+  /** The Constant CORBADO_FRONTEND_API. */
+  public static final String CORBADO_FRONTEND_API = "CORBADO_FRONTEND_API";
+
   /** The Constant CANNOT_BE_BLANK_MESSAGE. */
   public static final String CANNOT_BE_BLANK_MESSAGE = "cannot be blank";
 
@@ -120,13 +123,19 @@ public static CorbadoSdk instantiateSDK() throws StandardException {
     if (StringUtils.isEmpty(backendApi)) {
       backendApi = dotenv.get(CORBADO_BACKEND_API);
     }
-    Config config = null;
-    if (StringUtils.isEmpty(backendApi)) {
-      config = Config.builder().apiSecret(apiSecret).projectId(projectId).build();
-    } else {
-      config =
-          Config.builder().apiSecret(apiSecret).projectId(projectId).backendApi(backendApi).build();
+
+    // Check for CORBADO_BACKEND_API
+    String frontendApi = System.getenv(CORBADO_FRONTEND_API);
+    if (StringUtils.isEmpty(frontendApi)) {
+      frontendApi = dotenv.get(CORBADO_FRONTEND_API);
     }
+    final Config config =
+        Config.builder()
+            .apiSecret(apiSecret)
+            .projectId(projectId)
+            .backendApi(backendApi)
+            .frontendApi(frontendApi)
+            .build();
 
     return new CorbadoSdk(config);
   }