diff --git a/README.md b/README.md
index f79b860..e7ad4cf 100644
--- a/README.md
+++ b/README.md
@@ -357,6 +357,7 @@ You don't have to do anything manually!
 1. Rackspace Cloud DNS (https://www.rackspace.com)
 1. Online.net API (https://online.net/)
 1. MyDevil.net (https://www.mydevil.net/)
+1. OpenProvider API (https://www.openprovider.com/)
 
 And:
 
diff --git a/dnsapi/README.md b/dnsapi/README.md
index 9f176c0..3cbfe19 100644
--- a/dnsapi/README.md
+++ b/dnsapi/README.md
@@ -1279,6 +1279,23 @@ acme.sh --issue --dns dns_mydevil -d example.com -d *.example.com
 
 After certificate is ready, you can install it with [deploy command](../deploy/README.md#14-deploy-your-cert-on-mydevilnet).
 
+## 67. Use OpenProvider API
+
+First, you need to enable API access and retrieve your password hash on https://rcp.openprovider.eu/account/dashboard.php
+
+```
+export OPENPROVIDER_USER='username'
+export OPENPROVIDER_PASSWORDHASH='xxx'
+```
+
+To issue a cert run:
+
+```
+acme.sh --issue --dns dns_openprovider -d example.com -d www.example.com
+```
+
+`OPENPROVIDER_USER` and `OPENPROVIDER_PASSWORDHASH` will be saved in `~/.acme.sh/account.conf` and will be reused when needed.
+
 # Use custom API
 
 If your API is not supported yet, you can write your own DNS API.
diff --git a/dnsapi/dns_openprovider.sh b/dnsapi/dns_openprovider.sh
new file mode 100755
index 0000000..3d66dfe
--- /dev/null
+++ b/dnsapi/dns_openprovider.sh
@@ -0,0 +1,244 @@
+#!/usr/bin/env sh
+
+# This is the OpenProvider API wrapper for acme.sh
+#
+# Author: Sylvia van Os
+# Report Bugs here: https://github.com/Neilpang/acme.sh/issues/2104
+#
+#     export OPENPROVIDER_USER="username"
+#     export OPENPROVIDER_PASSWORDHASH="hashed_password"
+#
+# Usage:
+#     acme.sh --issue --dns dns_openprovider -d example.com
+
+OPENPROVIDER_API="https://api.openprovider.eu/"
+#OPENPROVIDER_API="https://api.cte.openprovider.eu/" # Test API
+
+########  Public functions #####################
+
+#Usage: dns_openprovider_add   _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
+dns_openprovider_add() {
+  fulldomain="$1"
+  txtvalue="$2"
+
+  OPENPROVIDER_USER="${OPENPROVIDER_USER:-$(_readaccountconf_mutable OPENPROVIDER_USER)}"
+  OPENPROVIDER_PASSWORDHASH="${OPENPROVIDER_PASSWORDHASH:-$(_readaccountconf_mutable OPENPROVIDER_PASSWORDHASH)}"
+
+  if [ -z "$OPENPROVIDER_USER" ] || [ -z "$OPENPROVIDER_PASSWORDHASH" ]; then
+    _err "You didn't specify the openprovider user and/or password hash."
+    return 1
+  fi
+
+  # save the username and password to the account conf file.
+  _saveaccountconf_mutable OPENPROVIDER_USER "$OPENPROVIDER_USER"
+  _saveaccountconf_mutable OPENPROVIDER_PASSWORDHASH "$OPENPROVIDER_PASSWORDHASH"
+
+  _debug "First detect the root zone"
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+
+  _debug _domain_name "$_domain_name"
+  _debug _domain_extension "$_domain_extension"
+
+  _debug "Getting current records"
+  existing_items=""
+  results_retrieved=0
+  while true; do
+    _openprovider_request "$(printf '<searchZoneRecordDnsRequest><name>%s.%s</name><offset>%s</offset></searchZoneRecordDnsRequest>' "$_domain_name" "$_domain_extension" "$results_retrieved")"
+
+    items="$response"
+    while true; do
+      item="$(printf '%s' "$items" | _egrep_o '<openXML>.*<\/openXML>' | sed -n -E 's/.*(<item>.*<\/item>).*/\1/p')"
+      _debug existing_items "$existing_items"
+      _debug results_retrieved "$results_retrieved"
+      _debug item "$item"
+
+      if [ -z "$item" ]; then
+        break
+      fi
+
+      items="$(printf '%s' "$items" | sed "s
$item

")"
+
+      results_retrieved=$((results_retrieved + 1))
+      new_item="$(printf '%s' "$item" | sed -n -E "s/.*<item>.*(<name>(.*)\.$_domain_name\.$_domain_extension<\/name>.*(<type>.*<\/type>).*(<value>.*<\/value>).*(<prio>.*<\/prio>).*(<ttl>.*<\/ttl>)).*<\/item>.*/<item><name>\2<\/name>\3\4\5\6<\/item>/p")"
+      if [ -z "$new_item" ]; then
+        # Base record
+        new_item="$(printf '%s' "$item" | sed -n -E "s/.*<item>.*(<name>(.*)$_domain_name\.$_domain_extension<\/name>.*(<type>.*<\/type>).*(<value>.*<\/value>).*(<prio>.*<\/prio>).*(<ttl>.*<\/ttl>)).*<\/item>.*/<item><name>\2<\/name>\3\4\5\6<\/item>/p")"
+      fi
+
+      if [ -z "$(printf '%s' "$new_item" | _egrep_o ".*<type>(A|AAAA|CNAME|MX|SPF|SRV|TXT|TLSA|SSHFP|CAA)<\/type>.*")" ]; then
+        _debug "not an allowed record type, skipping" "$new_item"
+        continue
+      fi
+
+      existing_items="$(printf '%s%s' "$existing_items" "$new_item")"
+    done
+
+    total="$(printf '%s' "$response" | _egrep_o '<total>.*?<\/total>' | sed -n -E 's/.*<total>(.*)<\/total>.*/\1/p')"
+
+    _debug total "$total"
+    if [ "$results_retrieved" -eq "$total" ]; then
+      break
+    fi
+  done
+
+  _debug "Creating acme record"
+  acme_record="$(printf '%s' "$fulldomain" | sed -e "s/.$_domain_name.$_domain_extension$//")"
+  _openprovider_request "$(printf '<modifyZoneDnsRequest><domain><name>%s</name><extension>%s</extension></domain><type>master</type><records><array>%s<item><name>%s</name><type>TXT</type><value>%s</value><ttl>86400</ttl></item></array></records></modifyZoneDnsRequest>' "$_domain_name" "$_domain_extension" "$existing_items" "$acme_record" "$txtvalue")"
+
+  return 0
+}
+
+#Usage: fulldomain txtvalue
+#Remove the txt record after validation.
+dns_openprovider_rm() {
+  fulldomain="$1"
+  txtvalue="$2"
+
+  OPENPROVIDER_USER="${OPENPROVIDER_USER:-$(_readaccountconf_mutable OPENPROVIDER_USER)}"
+  OPENPROVIDER_PASSWORDHASH="${OPENPROVIDER_PASSWORDHASH:-$(_readaccountconf_mutable OPENPROVIDER_PASSWORDHASH)}"
+
+  if [ -z "$OPENPROVIDER_USER" ] || [ -z "$OPENPROVIDER_PASSWORDHASH" ]; then
+    _err "You didn't specify the openprovider user and/or password hash."
+    return 1
+  fi
+
+  # save the username and password to the account conf file.
+  _saveaccountconf_mutable OPENPROVIDER_USER "$OPENPROVIDER_USER"
+  _saveaccountconf_mutable OPENPROVIDER_PASSWORDHASH "$OPENPROVIDER_PASSWORDHASH"
+
+  _debug "First detect the root zone"
+  if ! _get_root "$fulldomain"; then
+    _err "invalid domain"
+    return 1
+  fi
+
+  _debug _domain_name "$_domain_name"
+  _debug _domain_extension "$_domain_extension"
+
+  _debug "Getting current records"
+  existing_items=""
+  results_retrieved=0
+  while true; do
+    _openprovider_request "$(printf '<searchZoneRecordDnsRequest><name>%s.%s</name><offset>%s</offset></searchZoneRecordDnsRequest>' "$_domain_name" "$_domain_extension" "$results_retrieved")"
+
+    # Remove acme records from items
+    items="$response"
+    while true; do
+      item="$(printf '%s' "$items" | _egrep_o '<openXML>.*<\/openXML>' | sed -n -E 's/.*(<item>.*<\/item>).*/\1/p')"
+      _debug existing_items "$existing_items"
+      _debug results_retrieved "$results_retrieved"
+      _debug item "$item"
+
+      if [ -z "$item" ]; then
+        break
+      fi
+
+      items="$(printf '%s' "$items" | sed "s
$item

")"
+
+      results_retrieved=$((results_retrieved + 1))
+      if ! printf '%s' "$item" | grep -v "$fulldomain"; then
+        _debug "acme record, skipping" "$item"
+        continue
+      fi
+
+      new_item="$(printf '%s' "$item" | sed -n -E "s/.*<item>.*(<name>(.*)\.$_domain_name\.$_domain_extension<\/name>.*(<type>.*<\/type>).*(<value>.*<\/value>).*(<prio>.*<\/prio>).*(<ttl>.*<\/ttl>)).*<\/item>.*/<item><name>\2<\/name>\3\4\5\6<\/item>/p")"
+
+      if [ -z "$new_item" ]; then
+        # Base record
+        new_item="$(printf '%s' "$item" | sed -n -E "s/.*<item>.*(<name>(.*)$_domain_name\.$_domain_extension<\/name>.*(<type>.*<\/type>).*(<value>.*<\/value>).*(<prio>.*<\/prio>).*(<ttl>.*<\/ttl>)).*<\/item>.*/<item><name>\2<\/name>\3\4\5\6<\/item>/p")"
+      fi
+
+      if [ -z "$(printf '%s' "$new_item" | _egrep_o ".*<type>(A|AAAA|CNAME|MX|SPF|SRV|TXT|TLSA|SSHFP|CAA)<\/type>.*")" ]; then
+        _debug "not an allowed record type, skipping" "$new_item"
+        continue
+      fi
+
+      existing_items="$(printf '%s%s' "$existing_items" "$new_item")"
+    done
+
+    total="$(printf '%s' "$response" | _egrep_o '<total>.*?<\/total>' | sed -n -E 's/.*<total>(.*)<\/total>.*/\1/p')"
+
+    _debug total "$total"
+
+    if [ "$results_retrieved" -eq "$total" ]; then
+      break
+    fi
+  done
+
+  _debug "Removing acme record"
+  _openprovider_request "$(printf '<modifyZoneDnsRequest><domain><name>%s</name><extension>%s</extension></domain><type>master</type><records><array>%s</array></records></modifyZoneDnsRequest>' "$_domain_name" "$_domain_extension" "$existing_items")"
+
+  return 0
+}
+
+####################  Private functions below ##################################
+#_acme-challenge.www.domain.com
+#returns
+# _domain_name=domain
+# _domain_extension=com
+_get_root() {
+  domain=$1
+  i=2
+
+  results_retrieved=0
+  while true; do
+    h=$(printf "%s" "$domain" | cut -d . -f $i-100)
+    _debug h "$h"
+    if [ -z "$h" ]; then
+      #not valid
+      return 1
+    fi
+
+    _openprovider_request "$(printf '<searchDomainRequest><domainNamePattern>%s</domainNamePattern><offset>%s</offset></searchDomainRequest>' "$(printf "%s" "$h" | cut -d . -f 1)" "$results_retrieved")"
+
+    items="$response"
+    while true; do
+      item="$(printf '%s' "$items" | _egrep_o '<openXML>.*<\/openXML>' | sed -n -E 's/.*(<domain>.*<\/domain>).*/\1/p')"
+      _debug existing_items "$existing_items"
+      _debug results_retrieved "$results_retrieved"
+      _debug item "$item"
+
+      if [ -z "$item" ]; then
+        break
+      fi
+
+      items="$(printf '%s' "$items" | sed "s
$item

")"
+
+      results_retrieved=$((results_retrieved + 1))
+
+      _domain_name="$(printf "%s" "$item" | sed -n -E 's/.*<domain>.*<name>(.*)<\/name>.*<\/domain>.*/\1/p')"
+      _domain_extension="$(printf "%s" "$item" | sed -n -E 's/.*<domain>.*<extension>(.*)<\/extension>.*<\/domain>.*/\1/p')"
+      _debug _domain_name "$_domain_name"
+      _debug _domain_extension "$_domain_extension"
+      if [ "$(printf "%s.%s" "$_domain_name" "$_domain_extension")" = "$h" ]; then
+        return 0
+      fi
+    done
+
+    total="$(printf '%s' "$response" | _egrep_o '<total>.*?<\/total>' | sed -n -E 's/.*<total>(.*)<\/total>.*/\1/p')"
+
+    _debug total "$total"
+
+    if [ "$results_retrieved" -eq "$total" ]; then
+      results_retrieved=0
+      i=$(_math "$i" + 1)
+    fi
+  done
+  return 1
+}
+
+_openprovider_request() {
+  request_xml=$1
+
+  xml_prefix=$(printf '<?xml version="1.0" encoding="UTF-8"?>')
+  xml_content=$(printf '<openXML><credentials><username>%s</username><hash>%s</hash></credentials>%s</openXML>' "$OPENPROVIDER_USER" "$OPENPROVIDER_PASSWORDHASH" "$request_xml")
+  response="$(_post "$(printf "%s%s" "$xml_prefix" "$xml_content" | tr -d '\n')" "$OPENPROVIDER_API" "" "POST" "application/xml")"
+  _debug response "$response"
+  if ! _contains "$response" "<openXML><reply><code>0</code>.*</reply></openXML>"; then
+    _err "API request failed."
+    return 1
+  fi
+}