diff --git a/dnsapi/dns_ispconfig.sh b/dnsapi/dns_ispconfig.sh
new file mode 100755
index 00000000..2816ec0e
--- /dev/null
+++ b/dnsapi/dns_ispconfig.sh
@@ -0,0 +1,126 @@
+#!/usr/bin/env sh
+
+#ISPConfig 3.1 API - Add remote user and give him access to at least the "DNS txt functions"
+
+ISPC_User=""
+ISPC_Password=""
+ISPC_Api="https://ispc.domain.tld:8080/remote/json.php"  # Provider proper URL and port for your ISPC Installation
+
+
+########  Public functions #####################
+
+#Usage: dns_myapi_add   _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
+dns_ispconfig_add() {
+    fulldomain="${1}"
+    txtvalue="${2}"
+    _ISPC_login
+    if [ $? -eq 0 ]; then
+        _ISPC_getZoneInfo
+    fi
+    if [ $? -eq 0 ]; then
+        _ISPC_addTxt
+    fi
+    if [ $? -ne 0 ]; then
+        return 1
+    fi
+}
+
+#Usage: dns_myapi_rm   _acme-challenge.www.domain.com
+dns_ispconfig_rm() {
+    fulldomain="${1}"
+    _ISPC_login
+    if [ $? -eq 0 ]; then
+        _ISPC_rmTxt
+    fi
+    if [ $? -ne 0 ]; then
+        return 1
+    fi
+}
+
+####################  Private functions bellow ##################################
+
+_ISPC_login() {
+    _info "Getting Session ID"
+    curData="{\"username\":\"${ISPC_User}\",\"password\":\"${ISPC_Password}\",\"client_login\":false}"
+    curResult=$(curl -k --data "${curData}" "${ISPC_Api}?login")
+    if _contains "${curResult}" '"code":"ok"'; then 
+        sessionID=$(echo $curResult | _egrep_o "response.*" | cut -d ':' -f 2)
+        sessionID=${sessionID:1:-2}
+        _info "Successfully retrieved Session ID."
+    else
+        _err "Couldn't retrieve the Session ID. Aborting.";
+    fi
+}
+
+_ISPC_getZoneInfo () {
+    _info "Getting Zoneinfo"
+    zoneEnd=false
+    curZone="${fulldomain}"
+    while [ ${zoneEnd} = false ]; do
+        curZone="${curZone#*.}"         # we can strip the first part of the fulldomain, since it's just the _acme-challenge string
+        curData="{\"session_id\":\"${sessionID}\",\"primary_id\":[{\"origin\":\"${curZone}.\"}]}"         # suffix . needed for zone -> domain.tld.
+        curResult=$(curl -k --data "${curData}" "${ISPC_Api}?dns_zone_get")
+        if _contains "${curResult}" '"id":"'; then
+            zoneFound=true
+            zoneEnd=true
+            _info "Successfully retrieved zone data."
+        fi
+        if [ "${curZone#*.}" != "$curZone" ]; then
+            _debug2 "$curZone still contains a '.' - so we can check next higher level"
+        else 
+            zoneEnd=true
+            _err "Couldn't retrieve zone info. Aborting."
+        fi
+    done
+    if [ ${zoneFound} ]; then
+        server_id=$(echo $curResult | _egrep_o "server_id.*" | cut -d ':' -f 2)
+        server_id=${server_id:1:-10}
+        case ${server_id} in
+            ''|*[!0-9]*) _err "Server ID is not numeric. Aborting" ;;
+                      *) _info "Successfully retrieved Server ID" ;;
+        esac
+        zone=$(echo $curResult | _egrep_o "\"id.*" | cut -d ':' -f 2)
+        zone=${zone:1:-14}
+        case ${zone} in
+            ''|*[!0-9]*) _err "Zone ID is not numeric. Aborting" ;;
+                      *) _info "Successfully retrieved Zone ID" ;;
+        esac
+        client_id=$(echo $curResult | _egrep_o "sys_userid.*" | cut -d ':' -f 2)
+        client_id=${client_id:1:-15}
+        case ${client_id} in
+            ''|*[!0-9]*) _err "Client ID is not numeric. Aborting" ;;
+                      *) _info "Successfully retrieved Client ID" ;;
+        esac
+        unset zoneFound
+        unset zoneEnd
+    fi
+}
+
+_ISPC_addTxt () {
+    curSerial="$(date +%s)"
+    curStamp="$(date +'%F %T')"
+    params="\"server_id\":\"${server_id}\",\"zone\":\"${zone}\",\"name\":\"${fulldomain}\",\"type\":\"txt\",\"data\":\"${txtvalue}\",\"aux\":\"0\",\"ttl\":\"3600\",\"active\":\"y\",\"stamp\":\"${curStamp}\",\"serial\":\"${curSerial}\""
+    curData="{\"session_id\":\"${sessionID}\",\"client_id\":\"${client_id}\",\"params\":{${params}}}"
+    curResult=$(curl -k --data "${curData}" "${ISPC_Api}?dns_txt_add")
+    record_id=$(echo $curResult | _egrep_o "\"response.*" | cut -d ':' -f 2)
+    record_id=${record_id:1:-2}
+    case ${record_id} in = false
+        ''|*[!0-9]*) _err "Record ID is not numeric. Aborting" ;;
+                  *) _info "Successfully retrieved Record ID"; 
+                     record_data="$record_data $record_id" ;;  # Make space seperated string of record IDs for later removal.
+    esac
+}
+
+_ISPC_rmTxt () {
+    IFS=" "
+    for i in $record_data; do
+        curData="{\"session_id\":\"${sessionID}\",\"primary_id\":\"${i}\"}"
+        curResult=$(curl -k --data "${curData}" "${ISPC_Api}?dns_txt_delete")
+        echo $curResult;
+        if _contains "${curResult}" '"code":"ok"'; then 
+            _info "Successfully removed ACME challenge txt record."
+        else
+            _debug "Couldn't remove ACME challenge txt record";  # Setting it to debug only because there's no harm if the txt remains
+        fi
+    done
+}