diff --git a/docker-compose.yml b/docker-compose.yml
index 3001874..fa18833 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -9,6 +9,7 @@ services:
       - 8888:80
     environment:
       SPIFF_API_BASE: 'http://host.docker.internal:8080'
+      SPIFF_API_US_BASE: 'http://host.docker.internal:8080'
       WORDPRESS_DB_HOST: db
       WORDPRESS_DB_USER: exampleuser
       WORDPRESS_DB_PASSWORD: examplepass
diff --git a/replace-env-vars.py b/replace-env-vars.py
index ebcc8d7..5801e55 100644
--- a/replace-env-vars.py
+++ b/replace-env-vars.py
@@ -10,5 +10,10 @@
                 print('define("SPIFF_API_BASE", "https://api.spiff.com.au");')
             else:
                 print('define("SPIFF_API_BASE", "https://api.app.dev.spiff.com.au");')
+        elif line.startswith('define("SPIFF_API_US_BASE"'):
+            if (env == 'production'):
+                print('define("SPIFF_API_US_BASE", "https://api.us.spiffcommerce.com");')
+            else:
+                print('define("SPIFF_API_US_BASE", "https://api.app.dev.spiff.com.au");')
         else:
             print(line, end="")
diff --git a/spiff-connect/spiff-connect.php b/spiff-connect/spiff-connect.php
index 33813bb..c7ca820 100644
--- a/spiff-connect/spiff-connect.php
+++ b/spiff-connect/spiff-connect.php
@@ -2,7 +2,6 @@
 /*
 Plugin Name: Spiff Connect
 Plugin URI: http://spiff3d.com
-Version: 2.0.67
 Description: Connect your WooCommerce store to Spiff and allow customers access to Spiff Workflows to personalize their products.
 Author: Spiff Pty. Ltd.
 License: GPL3
@@ -11,11 +10,20 @@
 require plugin_dir_path(__FILE__) . 'includes/spiff-connect-requests.php';
 
 define("SPIFF_API_BASE", getenv("SPIFF_API_BASE"));
+define("SPIFF_API_US_BASE", getenv("SPIFF_API_US_BASE"));
 define("SPIFF_API_INSTALLS_PATH", "/api/installs");
 define("SPIFF_API_ORDERS_PATH", "/api/v2/orders");
 define("SPIFF_API_TRANSACTIONS_PATH", "/api/transactions");
 define("SPIFF_GRAPHQL_PATH", "/graphql");
 
+// Get base API URL based on infrastructure choice.
+function spiff_get_base_api_url() {
+    if (get_option('spiff_infrastructure') === "US") {
+        return SPIFF_API_US_BASE;
+    }
+    return SPIFF_API_BASE;
+}
+
 /**
  * Activation hook.
  */
@@ -49,7 +57,8 @@ function spiff_activation_hook() {
       $headers = array(
         'Content-Type' => 'application/json',
       );
-      wp_remote_post(SPIFF_API_BASE . SPIFF_API_INSTALLS_PATH, array(
+      // This is expected to always be Australia because the value hasn't been set yet.
+      wp_remote_post(spiff_get_base_api_url() . SPIFF_API_INSTALLS_PATH, array(
         'body' => $body,
         'headers' => $headers
       ));
@@ -72,6 +81,7 @@ function spiff_register_admin_settings() {
     register_setting('spiff-settings-group', 'spiff_api_key');
     register_setting('spiff-settings-group', 'spiff_api_secret');
     register_setting('spiff-settings-group', 'spiff_application_key');
+    register_setting('spiff-settings-group', 'spiff_infrastructure');
 
     register_setting('spiff-settings-group', 'spiff_show_customer_selections_in_cart');
     register_setting('spiff-settings-group', 'spiff_show_preview_images_in_cart');
@@ -130,6 +140,16 @@ function spiff_admin_menu_html() {
             <td><input autocomplete=off type="text" name="spiff_application_key" value="<?php echo esc_attr(get_option('spiff_application_key')); ?>" /></td>
             </tr>
         </table>
+        <p style="font-size: 16px;margin-bottom: 30px;position: relative;">Ensure that you are using the Spiff infrastructure that your account was created against.</p>
+        <table class="form-table">
+            <tr valign="top">
+            <th scope="row">Infrastructure</th>
+            <td><select name="spiff_infrastructure">
+                <option value="AU" <?php echo selected("AU", get_option("spiff_infrastructure") ?? "AU", false); ?>>Australia</option>
+                <option value="US" <?php echo selected("US", get_option("spiff_infrastructure"), false); ?>>United States</option>
+            </select></td>
+            </tr>
+        </table>
 
         <h2 style="font-size: 24px;line-height: 29px;position: relative;">Cart</h2>
         <table class="form-table">
@@ -395,7 +415,7 @@ function spiff_create_cart_item() {
 
 // Get the data associated with a transaction.
 function spiff_get_transaction($transaction_id) {
-    $url = SPIFF_API_BASE . SPIFF_GRAPHQL_PATH;
+    $url = spiff_get_base_api_url() . SPIFF_GRAPHQL_PATH;
     $access_key = get_option('spiff_api_key');
     $secret_key = get_option('spiff_api_secret');
     $body = json_encode(array(
@@ -471,7 +491,7 @@ function spiff_show_metadata_in_cart($cart_data, $cart_item) {
 }
 
 function spiff_get_transaction_image($transaction_id) {
-    $url = SPIFF_API_BASE . SPIFF_API_TRANSACTIONS_PATH . '/' . $transaction_id . '/image';
+    $url = spiff_get_base_api_url() . SPIFF_API_TRANSACTIONS_PATH . '/' . $transaction_id . '/image';
     $response = wp_remote_get($url, array('redirection' => 0));
     $response_location_header = wp_remote_retrieve_header($response, 'location');
     if ($response_location_header === '') {
@@ -542,7 +562,7 @@ function spiff_post_order($access_key, $secret_key, $items, $woo_order_id) {
         'orderItems' => $items
     ));
     $headers = spiff_request_headers($access_key, $secret_key, $body, SPIFF_API_ORDERS_PATH);
-    $response = wp_remote_post(SPIFF_API_BASE . SPIFF_API_ORDERS_PATH, array(
+    $response = wp_remote_post(spiff_get_base_api_url() . SPIFF_API_ORDERS_PATH, array(
         'body' => $body,
         'headers' => $headers,
     ));