diff --git a/dnsapi/dns_nm.sh b/dnsapi/dns_nm.sh
new file mode 100644
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+++ b/dnsapi/dns_nm.sh
@@ -0,0 +1,88 @@
+#!/usr/bin/env sh
+
+########################################################################
+# https://namemaster.de hook script for acme.sh
+#
+# Environment variables:
+#
+#  - $NM_user      (your namemaster.de API username)
+#  - $NM_sha256       (your namemaster.de API password_as_sha256hash)
+#
+# Author: Thilo Gass <thilo.gass@gmail.com>
+# Git repo: https://github.com/ThiloGa/acme.sh
+
+#-- dns_nm_add() - Add TXT record --------------------------------------
+# Usage: dns_nm_add _acme-challenge.subdomain.domain.com "XyZ123..."
+
+namemaster_api="https://namemaster.de/api/api.php"
+
+dns_nm_add() {
+  fulldomain=$1
+  txt_value=$2
+  _info "Using DNS-01 namemaster hook"
+
+  NM_user="${NM_user:-$(_readaccountconf_mutable NM_user)}"
+  NM_sha256="${NM_sha256:-$(_readaccountconf_mutable NM_sha256)}"
+  if [ -z "$NM_user" ] || [ -z "$NM_sha256" ]; then
+    NM_user=""
+    NM_sha256=""
+    _err "No auth details provided. Please set user credentials using the \$NM_user and \$NM_sha256 environment variables."
+    return 1
+  fi
+  #save the api user and sha256 password to the account conf file.
+  _debug "Save user and hash"
+  _saveaccountconf_mutable NM_user "$NM_user"
+  _saveaccountconf_mutable NM_sha256 "$NM_sha256"
+
+  _debug "First detect the root zone"
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain" "$fulldomain"
+    return 1
+  fi
+
+  _info "die Zone lautet:" "$zone"
+
+  get="$namemaster_api?User=$NM_user&Password=$NM_sha256&Antwort=csv&Typ=ACME&zone=$zone&hostname=$fulldomain&TXT=$txt_value&Action=Auto&Lifetime=3600"
+
+  if ! erg="$(_get "$get")"; then
+    _err "error Adding $fulldomain TXT: $txt_value"
+    return 1
+  fi
+
+  if _contains "$erg" "Success"; then
+    _info "Success, TXT Added, OK"
+  else
+    _err "error Adding $fulldomain TXT: $txt_value erg: $erg"
+    return 1
+  fi
+
+  _debug "ok Auto $fulldomain TXT: $txt_value erg: $erg"
+  return 0
+}
+
+dns_nm_rm() {
+
+  fulldomain=$1
+  txtvalue=$2
+  _info "TXT enrty in $fulldomain is deleted automatically"
+  _debug fulldomain "$fulldomain"
+  _debug txtvalue "$txtvalue"
+
+}
+
+_get_root() {
+
+  domain=$1
+
+  get="$namemaster_api?User=$NM_user&Password=$NM_sha256&Typ=acme&hostname=$domain&Action=getzone&antwort=csv"
+
+  if ! zone="$(_get "$get")"; then
+    _err "error getting Zone"
+    return 1
+  else
+    if _contains "$zone" "hostname not found"; then
+      return 1
+    fi
+  fi
+
+}