diff --git a/dnsapi/dns_cdmon.sh b/dnsapi/dns_cdmon.sh
new file mode 100644
index 00000000..470fb5fe
--- /dev/null
+++ b/dnsapi/dns_cdmon.sh
@@ -0,0 +1,137 @@
+#!/usr/bin/env sh
+# shellcheck disable=SC2034
+
+dns_cdmon_info='cdmon
+Site: www.cdmon.com
+Docs: github.com/acmesh-official/acme.sh/wiki/dnsapi#dns_cdmon
+Options:
+ CDMON_Key API Key
+'
+
+CDMON_Api="https://api-domains.cdmon.services/api-domains"
+
+########  Public functions #####################
+# Usage: add  _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
+# Used to add txt record
+dns_cdmon_add() {
+  fulldomain=$1
+  txtvalue=$2
+
+  CDMON_Key="${CDMON_Key:-$(_readaccountconf_mutable CDMON_Key)}"
+
+  if [ -z "$CDMON_Key" ]; then
+    CDMON_Key=""
+    _err "You didn't specify your cdmon api key yet."
+    _err "Please create your key and try again."
+    return 1
+  fi
+
+  _saveaccountconf_mutable CDMON_Key "$CDMON_Key"
+
+  _debug "First, we detect the root zone"
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+
+  _debug _sub_domain "$_sub_domain"
+  _debug _domain "$_domain"
+  _info "Adding record"
+  if _cdmon_rest "dnsrecords/create" "{\"data\":{\"type\":\"TXT\",\"domain\":\"$_domain\",\"value\":\"$txtvalue\",\"ttl\":120,\"host\":\"$_sub_domain\"}}"; then
+    if _contains "$response" "\"status\":\"ok\""; then
+      _info "Added, OK"
+      return 0
+    else
+      _err "Add txt record error."
+      return 1
+    fi
+  fi
+  _err "Add txt record error."
+  return 1
+}
+
+# Usage: fulldomain txtvalue
+# Used to remove the txt record after validation
+dns_cdmon_rm() {
+  fulldomain=$1
+  txtvalue=$2
+
+  CDMON_Key="${CDMON_Key:-$(_readaccountconf_mutable CDMON_Key)}"
+  _debug "First, we detect the root zone"
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+
+  _debug _sub_domain "$_sub_domain"
+  _debug _domain "$_domain"
+
+  _info "Removing record"
+  if _cdmon_rest "dnsrecords/delete" "{\"data\":{\"value\":\"$txtvalue\",\"type\":\"TXT\",\"domain\":\"$_domain\",\"host\":\"$_sub_domain\"}}"; then
+    if _contains "$response" "\"status\":\"ok\""; then
+      _info "Deleted, OK"
+      return 0
+    else
+      _err "Delete txt record error."
+      return 1
+    fi
+  fi
+  _err "Delete txt record error."
+  return 1
+}
+
+####################  Private functions below ##################################
+#_acme-challenge.www.domain.com
+#returns
+# _sub_domain=_acme-challenge.www
+# _domain=domain.com
+_get_root() {
+  domain=$1
+  i=1
+  p=1
+
+  if ! _cdmon_rest "domains/list"; then
+    return 1
+  fi
+
+  while true; do
+    h=$(printf "%s" "$domain" | cut -d . -f "$i"-100)
+    _debug h "$h"
+    if [ -z "$h" ]; then
+      #not valid
+      return 1
+    fi
+    if _contains "$response" "\"domain\":\"$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
+}
+
+_cdmon_rest() {
+  ep="$1"
+  data="$2"
+  _debug "$ep"
+
+  key_trimmed=$(echo "$CDMON_Key" | tr -d '"')
+
+  export _H1="Content-Type: application/json"
+  export _H2="apikey: $key_trimmed"
+
+  _debug data "$data"
+  response="$(_post "$data" "$CDMON_Api/$ep")"
+  _ret="$?"
+
+  unset _H1 _H2
+
+  if [ "$_ret" != "0" ]; then
+    _err "error $ep"
+    return 1
+  fi
+  _debug2 response "$response"
+  return 0
+}