diff --git a/dnsapi/dns_fmdns.sh b/dnsapi/dns_fmdns.sh
new file mode 100644
index 0000000000..bcc2c3e8eb
--- /dev/null
+++ b/dnsapi/dns_fmdns.sh
@@ -0,0 +1,128 @@
+#!/usr/bin/env sh
+
+# shellcheck disable=SC2034
+dns_fmdns_info='facileManager DNS API
+ API for self-hosted facileManager DNS github.com/WillyXJ/facileManager
+Site: github.com/gianlucagiacometti/proxmox-acme-facilemanager
+Docs: github.com/acmesh-official/acme.sh/wiki/dnsapi2#dns_fmdns
+Options:
+ FMDNS_API_ENDPOINT API Endpoint. Web address of the API endpoint. 
+ FMDNS_API_TOKEN API Token.
+ FMDNS_API_DOMAIN_ID Domain ID. Domain ID in your facileManager database.
+Issues: github.com/gianlucagiacometti/proxmox-acme-facilemanager
+Author: Gianluca Giacometti <php@gianlucagiacometti.it>
+'
+
+#####################  Public functions #####################
+
+dns_fmdns_add() {
+  fulldomain="${1}"
+  txtvalue="${2}"
+
+  FMDNS_API_TOKEN="${FMDNS_API_TOKEN:-$(_readaccountconf_mutable FMDNS_API_TOKEN)}"
+  # Check if API token exists
+  if [ -z "$FMDNS_API_TOKEN" ]; then
+    FMDNS_API_TOKEN=""
+    _err "You did not specify facileManager API token."
+    _err "Please export FMDNS_API_TOKEN and try again."
+    return 1
+  fi
+
+  FMDNS_API_ENDPOINT="${FMDNS_API_ENDPOINT:-$(_readaccountconf_mutable FMDNS_API_ENDPOINT)}"
+  # Check if API endpoint exists
+  if [ -z "$FMDNS_API_ENDPOINT" ]; then
+    FMDNS_API_ENDPOINT=""
+    _err "You did not specify facileManager API endpoint."
+    _err "Please export FMDNS_API_ENDPOINT and try again."
+    return 1
+  fi
+
+  FMDNS_API_DOMAIN_ID="${FMDNS_API_DOMAIN_ID:-$(_readaccountconf_mutable FMDNS_API_DOMAIN_ID)}"
+  # Check if API domain id exists
+  if [ -z "$FMDNS_API_DOMAIN_ID" ]; then
+    FMDNS_API_DOMAIN_ID=""
+    _err "You did not specify facileManager API domain id."
+    _err "Please export FMDNS_API_DOMAIN_ID and try again."
+    return 1
+  fi
+
+  _debug "Calling: _fmDnsApi_addRecord() '${fulldomain}' '${txtvalue}'"
+  _fmDnsApi_addRecord
+  return $?
+}
+
+dns_fmdns_rm() {
+  fulldomain="${1}"
+  txtvalue="${2}"
+
+  FMDNS_API_TOKEN="${FMDNS_API_TOKEN:-$(_readaccountconf_mutable FMDNS_API_TOKEN)}"
+  # Check if API token exists
+  if [ -z "$FMDNS_API_TOKEN" ]; then
+    FMDNS_API_TOKEN=""
+    _err "You did not specify facileManager API token."
+    _err "Please export FMDNS_API_TOKEN and try again."
+    return 1
+  fi
+
+  FMDNS_API_ENDPOINT="${FMDNS_API_ENDPOINT:-$(_readaccountconf_mutable FMDNS_API_ENDPOINT)}"
+  # Check if API endpoint exists
+  if [ -z "$FMDNS_API_ENDPOINT" ]; then
+    FMDNS_API_ENDPOINT=""
+    _err "You did not specify facileManager API endpoint."
+    _err "Please export FMDNS_API_ENDPOINT and try again."
+    return 1
+  fi
+
+  FMDNS_API_DOMAIN_ID="${FMDNS_API_DOMAIN_ID:-$(_readaccountconf_mutable FMDNS_API_DOMAIN_ID)}"
+  # Check if API domain id exists
+  if [ -z "$FMDNS_API_DOMAIN_ID" ]; then
+    FMDNS_API_DOMAIN_ID=""
+    _err "You did not specify facileManager API domain id."
+    _err "Please export FMDNS_API_DOMAIN_ID and try again."
+    return 1
+  fi
+
+  _debug "Calling: _fmDnsApi_removeRecord() '${fulldomain}' '${txtvalue}'"
+  _fmDnsApi_removeRecord
+  return $?
+}
+
+#####################  Private functions #####################
+
+_fmDnsApi_addRecord() {
+  _info "Connecting to ${FMDNS_API_ENDPOINT}"
+  _info "Adding record to zone"
+  curData="{\"fmAuthToken\":\"${FMDNS_API_TOKEN}\",\"id\":\"${FMDNS_API_DOMAIN_ID}\",\"action\":\"add\",\"name\":\"${fulldomain}\",\"value\":\"${txtvalue}\",\"type\":\"TXT\",\"ttl\":\"5\",\"reload\":\"yes\"}"
+  curResult="$(_post "${curData}" "${FMDNS_API_ENDPOINT}")"
+  _info "API result: '${curResult}'"
+  _debug "Calling facileManager API: '${curData}' '${FMDNS_API_ENDPOINT}'"
+  _debug "Result of zone add: '$curResult'"
+  if [ "${curResult}" != "Success" ]; then
+    if [ -z "${curResult}" ]; then
+      _err "Empty response"
+    else
+      _err "${curResult}"
+    fi
+    return 1
+  fi
+  return 0
+}
+
+_fmDnsApi_removeRecord() {
+  _info "Connecting to ${FMDNS_API_ENDPOINT}"
+  _info "Removing record from zone"
+  curData="{\"fmAuthToken\":\"${FMDNS_API_TOKEN}\",\"id\":\"${FMDNS_API_DOMAIN_ID}\",\"action\":\"delete\",\"name\":\"${fulldomain}\",\"type\":\"TXT\",\"ttl\":\"5\",\"reload\":\"yes\"}"
+  curResult="$(_post "${curData}" "${FMDNS_API_ENDPOINT}")"
+  _info "API result: '${curResult}'"
+  _debug "Calling facileManager API: '${curData}' '${FMDNS_API_ENDPOINT}'"
+  _debug "Result of zone delete: '$curResult'"
+  if [ "${curResult}" != "Success" ]; then
+    if [ -z "${curResult}" ]; then
+      _err "Empty response"
+    else
+      _err "${curResult}"
+    fi
+    return 1
+  fi
+  return 0
+}