diff --git a/security/acme-client/pkg-descr b/security/acme-client/pkg-descr
index ad11ff7de..9e90b9e38 100644
--- a/security/acme-client/pkg-descr
+++ b/security/acme-client/pkg-descr
@@ -14,6 +14,7 @@ Added:
 * add new OOP backend to improve reliability and maintainability (#1398)
 * add status for accounts to backend and WebGUI
 * add button to manually trigger account registration
+* add support for All-Inkl.com domain API (#1130)
 * add plugin changelog
 
 Fixed:
diff --git a/security/acme-client/src/opnsense/mvc/app/controllers/OPNsense/AcmeClient/forms/dialogValidation.xml b/security/acme-client/src/opnsense/mvc/app/controllers/OPNsense/AcmeClient/forms/dialogValidation.xml
index 6dc61e3f7..10ec7609c 100644
--- a/security/acme-client/src/opnsense/mvc/app/controllers/OPNsense/AcmeClient/forms/dialogValidation.xml
+++ b/security/acme-client/src/opnsense/mvc/app/controllers/OPNsense/AcmeClient/forms/dialogValidation.xml
@@ -1161,4 +1161,24 @@
         <label>API Password</label>
         <type>password</type>
     </field>
+    <field>
+        <label>All-Inkl.com domain API</label>
+        <type>header</type>
+        <style>table_dns table_dns_kas</style>
+    </field>
+    <field>
+        <id>validation.dns_kas_login</id>
+        <label>KAS Login</label>
+        <type>text</type>
+    </field>
+    <field>
+        <id>validation.dns_kas_authdata</id>
+        <label>KAS Authdata</label>
+        <type>text</type>
+    </field>
+    <field>
+        <id>validation.dns_kas_authtype</id>
+        <label>KAS Authtype</label>
+        <type>dropdown</type>
+    </field>
 </form>
diff --git a/security/acme-client/src/opnsense/mvc/app/library/OPNsense/AcmeClient/LeValidation/DnsKas.php b/security/acme-client/src/opnsense/mvc/app/library/OPNsense/AcmeClient/LeValidation/DnsKas.php
new file mode 100644
index 000000000..8dc7ff126
--- /dev/null
+++ b/security/acme-client/src/opnsense/mvc/app/library/OPNsense/AcmeClient/LeValidation/DnsKas.php
@@ -0,0 +1,46 @@
+<?php
+
+/*
+ * Copyright (C) 2020 Frank Wall
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+ * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+namespace OPNsense\AcmeClient\LeValidation;
+
+use OPNsense\AcmeClient\LeValidationInterface;
+use OPNsense\Core\Config;
+
+/**
+ * All-Inkl.com domain API
+ * @package OPNsense\AcmeClient
+ */
+class DnsKas extends Base implements LeValidationInterface
+{
+    public function prepare()
+    {
+        $this->acme_env['KAS_Login'] = (string)$this->config->dns_kas_login;
+        $this->acme_env['KAS_Authdata'] = (string)$this->config->dns_kas_authdata;
+        $this->acme_env['KAS_Authtype'] = (string)$this->config->dns_kas_authtype;
+    }
+}
diff --git a/security/acme-client/src/opnsense/mvc/app/models/OPNsense/AcmeClient/AcmeClient.xml b/security/acme-client/src/opnsense/mvc/app/models/OPNsense/AcmeClient/AcmeClient.xml
index 2179a1cdd..9f7b7f633 100644
--- a/security/acme-client/src/opnsense/mvc/app/models/OPNsense/AcmeClient/AcmeClient.xml
+++ b/security/acme-client/src/opnsense/mvc/app/models/OPNsense/AcmeClient/AcmeClient.xml
@@ -372,6 +372,7 @@
                         <dns_acmeproxy>Acmeproxy API</dns_acmeproxy>
                         <dns_ad>Alwaysdata.com API</dns_ad>
                         <dns_ali>aliyun.com API</dns_ali>
+                        <dns_kas>All-Inkl.com domain API</dns_kas>
                         <dns_arvan>ArvanCloud API</dns_arvan>
                         <dns_autodns>AutoDNS (InterNetX) API</dns_autodns>
                         <dns_aws>AWS Route 53</dns_aws>
@@ -921,6 +922,19 @@
                 <dns_1984hosting_password type="TextField">
                     <Required>N</Required>
                 </dns_1984hosting_password>
+                <dns_kas_login type="TextField">
+                    <Required>N</Required>
+                </dns_kas_login>
+                <dns_kas_authdata type="TextField">
+                    <Required>N</Required>
+                </dns_kas_authdata>
+                <dns_kas_authtype type="OptionField">
+                    <Required>N</Required>
+                    <default>sha1</default>
+                    <OptionValues>
+                        <sha1>SHA1</sha1>
+                    </OptionValues>
+                </dns_kas_authtype>
             </validation>
         </validations>
         <actions>