diff --git a/libraries/ESP8266httpUpdate/src/ESP8266httpUpdate.cpp b/libraries/ESP8266httpUpdate/src/ESP8266httpUpdate.cpp
index d3029c453e..c2c2e8d631 100644
--- a/libraries/ESP8266httpUpdate/src/ESP8266httpUpdate.cpp
+++ b/libraries/ESP8266httpUpdate/src/ESP8266httpUpdate.cpp
@@ -45,7 +45,7 @@ ESP8266HTTPUpdate::~ESP8266HTTPUpdate(void)
 
 #ifdef HTTPUPDATE_1_2_COMPATIBLE
 HTTPUpdateResult ESP8266HTTPUpdate::update(const String& url, const String& currentVersion,
-        const String& httpsFingerprint, bool reboot)
+        const String& httpsFingerprint, bool reboot, const char * apiKey)
 {
     rebootOnUpdate(reboot);
 #pragma GCC diagnostic push
@@ -54,88 +54,88 @@ HTTPUpdateResult ESP8266HTTPUpdate::update(const String& url, const String& curr
 #pragma GCC diagnostic pop
 }
 
-HTTPUpdateResult ESP8266HTTPUpdate::update(const String& url, const String& currentVersion)
+HTTPUpdateResult ESP8266HTTPUpdate::update(const String& url, const String& currentVersion, const char * apiKey)
 {
     HTTPClient http;
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored  "-Wdeprecated-declarations"
     http.begin(url);
 #pragma GCC diagnostic pop
-    return handleUpdate(http, currentVersion, false);
+    return handleUpdate(http, currentVersion, false, apiKey);
 }
 
 HTTPUpdateResult ESP8266HTTPUpdate::update(const String& url, const String& currentVersion,
-        const String& httpsFingerprint)
+        const String& httpsFingerprint, const char * apiKey)
 {
     HTTPClient http;
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored  "-Wdeprecated-declarations"
     http.begin(url, httpsFingerprint);
 #pragma GCC diagnostic pop
-    return handleUpdate(http, currentVersion, false);
+    return handleUpdate(http, currentVersion, false, apiKey);
 }
 
 HTTPUpdateResult ESP8266HTTPUpdate::update(const String& url, const String& currentVersion,
-        const uint8_t httpsFingerprint[20])
+        const uint8_t httpsFingerprint[20], const char * apiKey)
 {
     HTTPClient http;
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored  "-Wdeprecated-declarations"
     http.begin(url, httpsFingerprint);
 #pragma GCC diagnostic pop
-    return handleUpdate(http, currentVersion, false);
+    return handleUpdate(http, currentVersion, false, apiKey);
 }
 #endif
 
-HTTPUpdateResult ESP8266HTTPUpdate::update(WiFiClient& client, const String& url, const String& currentVersion)
+HTTPUpdateResult ESP8266HTTPUpdate::update(WiFiClient& client, const String& url, const String& currentVersion, const char * apiKey)
 {
     HTTPClient http;
     http.begin(client, url);
-    return handleUpdate(http, currentVersion, false);
+    return handleUpdate(http, currentVersion, false, apiKey);
 }
 
 #ifdef HTTPUPDATE_1_2_COMPATIBLE
-HTTPUpdateResult ESP8266HTTPUpdate::updateSpiffs(const String& url, const String& currentVersion, const String& httpsFingerprint)
+HTTPUpdateResult ESP8266HTTPUpdate::updateSpiffs(const String& url, const String& currentVersion, const String& httpsFingerprint, const char * apiKey)
 {
     HTTPClient http;
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored  "-Wdeprecated-declarations"
     http.begin(url, httpsFingerprint);
 #pragma GCC diagnostic pop
-    return handleUpdate(http, currentVersion, true);
+    return handleUpdate(http, currentVersion, true, apiKey);
 }
 
-HTTPUpdateResult ESP8266HTTPUpdate::updateSpiffs(const String& url, const String& currentVersion, const uint8_t httpsFingerprint[20])
+HTTPUpdateResult ESP8266HTTPUpdate::updateSpiffs(const String& url, const String& currentVersion, const uint8_t httpsFingerprint[20], const char * apiKey)
 {
     HTTPClient http;
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored  "-Wdeprecated-declarations"
     http.begin(url, httpsFingerprint);
 #pragma GCC diagnostic pop
-    return handleUpdate(http, currentVersion, true);
+    return handleUpdate(http, currentVersion, true, apiKey);
 }
 
-HTTPUpdateResult ESP8266HTTPUpdate::updateSpiffs(const String& url, const String& currentVersion)
+HTTPUpdateResult ESP8266HTTPUpdate::updateSpiffs(const String& url, const String& currentVersion, const char * apiKey)
 {
     HTTPClient http;
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored  "-Wdeprecated-declarations"
     http.begin(url);
 #pragma GCC diagnostic pop
-    return handleUpdate(http, currentVersion, true);
+    return handleUpdate(http, currentVersion, true, apiKey);
 }
 #endif
 
-HTTPUpdateResult ESP8266HTTPUpdate::updateSpiffs(WiFiClient& client, const String& url, const String& currentVersion)
+HTTPUpdateResult ESP8266HTTPUpdate::updateSpiffs(WiFiClient& client, const String& url, const String& currentVersion, const char * apiKey)
 {
     HTTPClient http;
     http.begin(client, url);
-    return handleUpdate(http, currentVersion, true);
+    return handleUpdate(http, currentVersion, true, apiKey);
 }
 
 #ifdef HTTPUPDATE_1_2_COMPATIBLE
 HTTPUpdateResult ESP8266HTTPUpdate::update(const String& host, uint16_t port, const String& uri, const String& currentVersion,
-        bool https, const String& httpsFingerprint, bool reboot)
+        bool https, const String& httpsFingerprint, bool reboot, const char * apiKey)
 {
     (void)https;
     rebootOnUpdate(reboot);
@@ -150,45 +150,45 @@ HTTPUpdateResult ESP8266HTTPUpdate::update(const String& host, uint16_t port, co
 }
 
 HTTPUpdateResult ESP8266HTTPUpdate::update(const String& host, uint16_t port, const String& uri,
-        const String& currentVersion)
+        const String& currentVersion, const char * apiKey)
 {
     HTTPClient http;
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored  "-Wdeprecated-declarations"
     http.begin(host, port, uri);
 #pragma GCC diagnostic pop
-    return handleUpdate(http, currentVersion, false);
+    return handleUpdate(http, currentVersion, false, apiKey);
 }
 
 HTTPUpdateResult ESP8266HTTPUpdate::update(const String& host, uint16_t port, const String& url,
-        const String& currentVersion, const String& httpsFingerprint)
+        const String& currentVersion, const String& httpsFingerprint, const char * apiKey)
 {
     HTTPClient http;
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored  "-Wdeprecated-declarations"
     http.begin(host, port, url, httpsFingerprint);
 #pragma GCC diagnostic pop
-    return handleUpdate(http, currentVersion, false);
+    return handleUpdate(http, currentVersion, false, apiKey);
 }
 
 HTTPUpdateResult ESP8266HTTPUpdate::update(const String& host, uint16_t port, const String& url,
-        const String& currentVersion, const uint8_t httpsFingerprint[20])
+        const String& currentVersion, const uint8_t httpsFingerprint[20], const char * apiKey)
 {
     HTTPClient http;
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored  "-Wdeprecated-declarations"
     http.begin(host, port, url, httpsFingerprint);
 #pragma GCC diagnostic pop
-    return handleUpdate(http, currentVersion, false);
+    return handleUpdate(http, currentVersion, false, apiKey);
 }
 #endif
 
 HTTPUpdateResult ESP8266HTTPUpdate::update(WiFiClient& client, const String& host, uint16_t port, const String& uri,
-        const String& currentVersion)
+        const String& currentVersion, const char * apiKey)
 {
     HTTPClient http;
     http.begin(client, host, port, uri);
-    return handleUpdate(http, currentVersion, false);
+    return handleUpdate(http, currentVersion, false, apiKey);
 }
 
 /**
@@ -253,7 +253,7 @@ String ESP8266HTTPUpdate::getLastErrorString(void)
  * @param currentVersion const char *
  * @return HTTPUpdateResult
  */
-HTTPUpdateResult ESP8266HTTPUpdate::handleUpdate(HTTPClient& http, const String& currentVersion, bool spiffs)
+HTTPUpdateResult ESP8266HTTPUpdate::handleUpdate(HTTPClient& http, const String& currentVersion, bool spiffs, const chat * apiKey )
 {
 
     HTTPUpdateResult ret = HTTP_UPDATE_FAILED;
@@ -270,6 +270,7 @@ HTTPUpdateResult ESP8266HTTPUpdate::handleUpdate(HTTPClient& http, const String&
     http.addHeader(F("x-ESP8266-sketch-md5"), String(ESP.getSketchMD5()));
     http.addHeader(F("x-ESP8266-chip-size"), String(ESP.getFlashChipRealSize()));
     http.addHeader(F("x-ESP8266-sdk-version"), ESP.getSdkVersion());
+    http.addHeader(F("apiKey"), apiKey);
 
     if(spiffs) {
         http.addHeader(F("x-ESP8266-mode"), F("spiffs"));
diff --git a/libraries/ESP8266httpUpdate/src/ESP8266httpUpdate.h b/libraries/ESP8266httpUpdate/src/ESP8266httpUpdate.h
index a61e071f70..59b17e36b0 100644
--- a/libraries/ESP8266httpUpdate/src/ESP8266httpUpdate.h
+++ b/libraries/ESP8266httpUpdate/src/ESP8266httpUpdate.h
@@ -88,46 +88,47 @@ class ESP8266HTTPUpdate
 #ifdef HTTPUPDATE_1_2_COMPATIBLE
     // This function is deprecated, use rebootOnUpdate and the next one instead
     t_httpUpdate_return update(const String& url, const String& currentVersion,
-                               const String& httpsFingerprint, bool reboot) __attribute__((deprecated));
-    t_httpUpdate_return update(const String& url, const String& currentVersion = "") __attribute__((deprecated));
+                               const String& httpsFingerprint, bool reboot, const char * apiKey = "") __attribute__((deprecated));
+    t_httpUpdate_return update(const String& url, const String& currentVersion = "", const char * apiKey = "") __attribute__((deprecated));
     t_httpUpdate_return update(const String& url, const String& currentVersion,
-                               const String& httpsFingerprint) __attribute__((deprecated));
+                               const String& httpsFingerprint, const char * apiKey = "") __attribute__((deprecated));
     t_httpUpdate_return update(const String& url, const String& currentVersion,
-                               const uint8_t httpsFingerprint[20]) __attribute__((deprecated)); // BearSSL
+                               const uint8_t httpsFingerprint[20], const char * apiKey = "") __attribute__((deprecated)); // BearSSL
 #endif
-    t_httpUpdate_return update(WiFiClient& client, const String& url, const String& currentVersion = "");
+    t_httpUpdate_return update(WiFiClient& client, const String& url, const String& currentVersion = "", const char * apiKey = "");
 
 #ifdef HTTPUPDATE_1_2_COMPATIBLE
     // This function is deprecated, use one of the overloads below along with rebootOnUpdate
     t_httpUpdate_return update(const String& host, uint16_t port, const String& uri, const String& currentVersion,
-                               bool https, const String& httpsFingerprint, bool reboot) __attribute__((deprecated));
+                               bool https, const String& httpsFingerprint, bool reboot, const char * apiKey = "") __attribute__((deprecated));
 
     t_httpUpdate_return update(const String& host, uint16_t port, const String& uri = "/",
-                               const String& currentVersion = "") __attribute__((deprecated));
+                               const String& currentVersion = "", const char * apiKey = "") __attribute__((deprecated));
     t_httpUpdate_return update(const String& host, uint16_t port, const String& url,
-                               const String& currentVersion, const String& httpsFingerprint) __attribute__((deprecated));
+                               const String& currentVersion, const String& httpsFingerprint, const char * apiKey = "") __attribute__((deprecated));
     t_httpUpdate_return update(const String& host, uint16_t port, const String& url,
-                               const String& currentVersion, const uint8_t httpsFingerprint[20]) __attribute__((deprecated)); // BearSSL
+                               const String& currentVersion, const uint8_t httpsFingerprint[20], const char * apiKey = "") __attribute__((deprecated)); // BearSSL
 #endif
     t_httpUpdate_return update(WiFiClient& client, const String& host, uint16_t port, const String& uri = "/",
-                               const String& currentVersion = "");
+                               const String& currentVersion = "", const char * apiKey = "");
 
-#ifdef HTTPUPDATE_1_2_COMPATIBLE
+    #ifdef HTTPUPDATE_1_2_COMPATIBLE
+    
     // This function is deprecated, use rebootOnUpdate and the next one instead
     t_httpUpdate_return updateSpiffs(const String& url, const String& currentVersion,
-                                     const String& httpsFingerprint, bool reboot) __attribute__((deprecated));
-    t_httpUpdate_return updateSpiffs(const String& url, const String& currentVersion = "") __attribute__((deprecated));
-    t_httpUpdate_return updateSpiffs(const String& url, const String& currentVersion, const String& httpsFingerprint) __attribute__((deprecated));
-    t_httpUpdate_return updateSpiffs(const String& url, const String& currentVersion, const uint8_t httpsFingerprint[20]) __attribute__((deprecated)); // BearSSL
-#endif
-    t_httpUpdate_return updateSpiffs(WiFiClient& client, const String& url, const String& currentVersion = "");
+                                     const String& httpsFingerprint, bool reboot, const char * apiKey = "") __attribute__((deprecated));
+    t_httpUpdate_return updateSpiffs(const String& url, const String& currentVersion = "", const char * apiKey = "") __attribute__((deprecated));
+    t_httpUpdate_return updateSpiffs(const String& url, const String& currentVersion, const String& httpsFingerprint, const char * apiKey = "") __attribute__((deprecated));
+    t_httpUpdate_return updateSpiffs(const String& url, const String& currentVersion, const uint8_t httpsFingerprint[20], const char * apiKey = "") __attribute__((deprecated)); // BearSSL
+    #endif
+    t_httpUpdate_return updateSpiffs(WiFiClient& client, const String& url, const String& currentVersion = "", const char * apiKey = "");
 
 
     int getLastError(void);
     String getLastErrorString(void);
 
 protected:
-    t_httpUpdate_return handleUpdate(HTTPClient& http, const String& currentVersion, bool spiffs = false);
+    t_httpUpdate_return handleUpdate(HTTPClient& http, const String& currentVersion, bool spiffs = false, const char * apiKey = "");
     bool runUpdate(Stream& in, uint32_t size, String md5, int command = U_FLASH);
 
     int _lastError;