diff --git a/dnsapi/dns_ipv64.sh b/dnsapi/dns_ipv64.sh
new file mode 100755
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+++ b/dnsapi/dns_ipv64.sh
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+#!/usr/bin/env sh
+
+#Created by Roman Lumetsberger, to use ipv64.net's API to add/remove text records
+#2022/11/29
+
+# Pass credentials before "acme.sh --issue --dns dns_ipv64 ..."
+# --
+# export IPv64_Token="aaaaaaaaaaaaaaaaaaaaaaaaaa"
+# --
+#
+
+IPv64_API="https://ipv64.net/api"
+
+########  Public functions ######################
+
+#Usage: dns_ipv64_add _acme-challenge.domain.ipv64.net "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
+dns_ipv64_add() {
+  fulldomain=$1
+  txtvalue=$2
+
+  IPv64_Token="${IPv64_Token:-$(_readaccountconf_mutable IPv64_Token)}"
+  if [ -z "$IPv64_Token" ]; then
+    _err "You must export variable: IPv64_Token"
+    _err "The API Key for your IPv64 account is necessary."
+    _err "You can look it up in your IPv64 account."
+    return 1
+  fi
+
+  # Now save the credentials.
+  _saveaccountconf_mutable IPv64_Token "$IPv64_Token"
+
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain" "$fulldomain"
+    return 1
+  fi
+  _debug _sub_domain "$_sub_domain"
+  _debug _domain "$_domain"
+
+  # convert to lower case
+  _domain="$(echo "$_domain" | _lower_case)"
+  _sub_domain="$(echo "$_sub_domain" | _lower_case)"
+  # Now add the TXT record
+  _info "Trying to add TXT record"
+  if _ipv64_rest "POST" "add_record=$_domain&praefix=$_sub_domain&type=TXT&content=$txtvalue"; then
+    _info "TXT record has been successfully added."
+    return 0
+  else
+    _err "Errors happened during adding the TXT record, response=$_response"
+    return 1
+  fi
+
+}
+
+#Usage: fulldomain txtvalue
+#Usage: dns_ipv64_rm _acme-challenge.domain.ipv64.net "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
+#Remove the txt record after validation.
+dns_ipv64_rm() {
+  fulldomain=$1
+  txtvalue=$2
+
+  IPv64_Token="${IPv64_Token:-$(_readaccountconf_mutable IPv64_Token)}"
+  if [ -z "$IPv64_Token" ]; then
+    _err "You must export variable: IPv64_Token"
+    _err "The API Key for your IPv64 account is necessary."
+    _err "You can look it up in your IPv64 account."
+    return 1
+  fi
+
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain" "$fulldomain"
+    return 1
+  fi
+  _debug _sub_domain "$_sub_domain"
+  _debug _domain "$_domain"
+
+  # convert to lower case
+  _domain="$(echo "$_domain" | _lower_case)"
+  _sub_domain="$(echo "$_sub_domain" | _lower_case)"
+  # Now delete the TXT record
+  _info "Trying to delete TXT record"
+  if _ipv64_rest "DELETE" "del_record=$_domain&praefix=$_sub_domain&type=TXT&content=$txtvalue"; then
+    _info "TXT record has been successfully deleted."
+    return 0
+  else
+    _err "Errors happened during deleting the TXT record, response=$_response"
+    return 1
+  fi
+
+}
+
+####################  Private functions below ##################################
+#_acme-challenge.www.domain.com
+#returns
+# _sub_domain=_acme-challenge.www
+# _domain=domain.com
+_get_root() {
+  domain="$1"
+  i=1
+  p=1
+
+  _ipv64_get "get_domains"
+  domain_data=$_response
+
+  while true; do
+    h=$(printf "%s" "$domain" | cut -d . -f "$i"-100)
+    if [ -z "$h" ]; then
+      #not valid
+      return 1
+    fi
+
+    #if _contains "$domain_data" "\""$h"\"\:"; then
+    if _contains "$domain_data" "\"""$h""\"\:"; then
+      _sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-"$p")
+      _domain="$h"
+      return 0
+    fi
+    p=$i
+    i=$(_math "$i" + 1)
+  done
+  return 1
+}
+
+#send get request to api
+# $1 has to set the api-function
+_ipv64_get() {
+  url="$IPv64_API?$1"
+  export _H1="Authorization: Bearer $IPv64_Token"
+
+  _response=$(_get "$url")
+  _response="$(echo "$_response" | _normalizeJson)"
+
+  if _contains "$_response" "429 Too Many Requests"; then
+    _info "API throttled, sleeping to reset the limit"
+    _sleep 10
+    _response=$(_get "$url")
+    _response="$(echo "$_response" | _normalizeJson)"
+  fi
+}
+
+_ipv64_rest() {
+  url="$IPv64_API"
+  export _H1="Authorization: Bearer $IPv64_Token"
+  export _H2="Content-Type: application/x-www-form-urlencoded"
+  _response=$(_post "$2" "$url" "" "$1")
+
+  if _contains "$_response" "429 Too Many Requests"; then
+    _info "API throttled, sleeping to reset the limit"
+    _sleep 10
+    _response=$(_post "$2" "$url" "" "$1")
+  fi
+
+  if ! _contains "$_response" "\"info\":\"success\""; then
+    return 1
+  fi
+  _debug2 response "$_response"
+  return 0
+}