diff --git a/src/handlers/handle_input.py b/src/handlers/handle_input.py
index 1fb3cda..8cd6983 100644
--- a/src/handlers/handle_input.py
+++ b/src/handlers/handle_input.py
@@ -6,6 +6,9 @@ from handlers.handle_config import checkConfig
 from plugin.plugin_downloader import searchPackage, getSpecificPackage
 from plugin.plugin_updatechecker import updateInstalledPackage, checkInstalledPackage
 from plugin.plugin_remover import removePlugin
+from serverjar.serverjar_checker import checkInstalledServerjar, updateServerjar
+from serverjar.serverjar_paper import papermc_downloader 
+
 
 def createInputLists():
     global COMMANDLIST
@@ -16,7 +19,8 @@ def createInputLists():
         'search',
         'exit',
         'help',
-        'remove'
+        'remove',
+        'get-paper'
     ]
     global INPUTSELECTEDOBJECT
     INPUTSELECTEDOBJECT = [
@@ -47,10 +51,16 @@ def handleInput(inputCommand, inputSelectedObject, inputParams):
                 searchPackage(inputSelectedObject)
                 break
         if inputCommand == 'update':
-            updateInstalledPackage(inputSelectedObject)
+            if inputSelectedObject == 'serverjar':
+                updateServerjar(inputParams)
+            else:
+                updateInstalledPackage(inputSelectedObject)
             break
         if inputCommand == 'check':
-            checkInstalledPackage(inputSelectedObject)
+            if inputSelectedObject == 'serverjar':
+                checkInstalledServerjar()
+            else:
+                checkInstalledPackage(inputSelectedObject)
             break
         if inputCommand == 'search':
             searchPackage(inputSelectedObject)
@@ -63,6 +73,9 @@ def handleInput(inputCommand, inputSelectedObject, inputParams):
         if inputCommand == 'remove':
             removePlugin(inputSelectedObject)
             break
+        if inputCommand == 'get-paper':
+            papermc_downloader(inputSelectedObject, inputParams)
+            break
         else:
             print(oColors.brightRed + "Command not found. Please try again." + oColors.standardWhite)
             getInput()
diff --git a/src/handlers/handle_sftp.py b/src/handlers/handle_sftp.py
index 8049959..aeebe07 100644
--- a/src/handlers/handle_sftp.py
+++ b/src/handlers/handle_sftp.py
@@ -45,6 +45,17 @@ def sftp_upload_file(sftp, itemPath):
     sftp.close()
 
 
+def sftp_upload_server_jar(sftp, itemPath):
+    try:
+        sftp.chdir('.')
+        sftp.put(itemPath)
+
+    except FileNotFoundError:
+        print(oColors.brightRed + "The 'plugins' folder couldn*t be found on the remote host!" + oColors.standardWhite)
+        print(oColors.brightRed + "Aborting installation." + oColors.standardWhite)
+    sftp.close()
+
+
 def sftp_listAll(sftp):
     try:
         sftp.chdir('plugins')
@@ -56,4 +67,18 @@ def sftp_listAll(sftp):
     try:
         return installedPlugins
     except UnboundLocalError:
-        print(oColors.brightRed + "No plugins were found." + oColors.standardWhite)
\ No newline at end of file
+        print(oColors.brightRed + "No plugins were found." + oColors.standardWhite)
+
+
+def sftp_listFilesInServerRoot(sftp):
+    try:
+        #sftp.chdir('plugins')
+        filesInServerRoot = sftp.listdir()
+
+    except FileNotFoundError:
+        print(oColors.brightRed + "The 'root' folder couldn*t be found on the remote host!" + oColors.standardWhite)
+
+    try:
+        return filesInServerRoot
+    except UnboundLocalError:
+        print(oColors.brightRed + "No Serverjar was found." + oColors.standardWhite)
\ No newline at end of file
diff --git a/src/serverjar/serverjar_checker.py b/src/serverjar/serverjar_checker.py
new file mode 100644
index 0000000..cd153f1
--- /dev/null
+++ b/src/serverjar/serverjar_checker.py
@@ -0,0 +1,85 @@
+import os
+import sys
+from urllib.error import HTTPError
+
+from handlers.handle_sftp import createSFTPConnection, sftp_listFilesInServerRoot
+from handlers.handle_config import checkConfig
+from utils.consoleoutput import oColors
+from serverjar.serverjar_paper import paperCheckForUpdate, papermc_downloader
+
+
+def checkInstalledServerjar():
+    if not checkConfig().localPluginFolder:
+        sftp = createSFTPConnection()
+        serverRootList = sftp_listFilesInServerRoot(sftp)
+    else:
+        serverRootList = os.path.dirname(checkConfig().pathToPluginFolder)
+        os.chdir('..')
+        serverRootList = os.listdir(serverRootList)
+    installedServerjarFullName = None
+    try:
+        for files in serverRootList:
+            try:
+                if '.jar' in files:
+                    installedServerjarFullName = files
+                    break
+            except TypeError:
+                continue
+    except TypeError:
+        print(oColors.brightRed + "Serverjar couldn't be found." + oColors.standardWhite)
+        print(oColors.brightRed + "Aborting the process." + oColors.standardWhite)
+
+    if installedServerjarFullName == None:
+        print(oColors.brightRed + "Serverjar couldn't be found." + oColors.standardWhite)
+        print(oColors.brightRed + "Aborting the process." + oColors.standardWhite)
+        input("Press any key + enter to exit...")
+        sys.exit()
+    
+    if 'paper' in installedServerjarFullName:
+        paperCheckForUpdate(installedServerjarFullName)
+
+    else:
+        print(oColors.brightRed + f"{installedServerjarFullName} isn't supported.")
+        print(oColors.brightRed + "Aborting the process." + oColors.standardWhite)
+
+
+def updateServerjar(serverJarBuild='latest'):
+    if serverJarBuild == None:
+        serverJarBuild = 'latest'
+    if not checkConfig().localPluginFolder:
+        sftp = createSFTPConnection()
+        serverRootList = sftp_listFilesInServerRoot(sftp)
+    else:
+        serverRoot = os.path.dirname(checkConfig().pathToPluginFolder)
+        os.chdir('..')
+        serverRootList = os.listdir(serverRoot)
+        installedServerjarFullName = None
+    try:
+        for files in serverRootList:
+            try:
+                if '.jar' in files:
+                    installedServerjarFullName = files
+                    break
+            except TypeError:
+                continue
+    except TypeError:
+        print(oColors.brightRed + "Serverjar couldn't be found." + oColors.standardWhite)
+        print(oColors.brightRed + "Aborting the process." + oColors.standardWhite)
+
+    if installedServerjarFullName == None:
+        print(oColors.brightRed + "Serverjar couldn't be found." + oColors.standardWhite)
+        print(oColors.brightRed + "Aborting the process." + oColors.standardWhite)
+        input("Press any key + enter to exit...")
+        sys.exit()
+    
+    if 'paper' in installedServerjarFullName:
+        print(serverJarBuild)
+        try:
+            papermc_downloader(serverJarBuild, installedServerjarFullName)
+        except HTTPError as err:
+                print(oColors.brightRed +  f"Error: {err.code} - {err.reason}" + oColors.standardWhite)
+
+    else:
+        print(oColors.brightRed + f"{installedServerjarFullName} isn't supported.")
+        print(oColors.brightRed + "Aborting the process." + oColors.standardWhite)
+    
\ No newline at end of file
diff --git a/src/serverjar/serverjar_paper.py b/src/serverjar/serverjar_paper.py
index dc56407..d170958 100644
--- a/src/serverjar/serverjar_paper.py
+++ b/src/serverjar/serverjar_paper.py
@@ -1,32 +1,142 @@
+import os
 import sys
+import re
+import urllib.request
 
 from utils.consoleoutput import oColors
 from utils.web_request import doAPIRequest
-from handlers.handle_sftp import sftp_upload_file, sftp_cdPluginDir, createSFTPConnection
+from handlers.handle_sftp import sftp_upload_server_jar, sftp_cdPluginDir, createSFTPConnection
+from handlers.handle_config import checkConfig
+from utils.utilities import createTempPluginFolder, deleteTempPluginFolder
+from plugin.plugin_downloader import calculateFileSize
 
+
+
+# = 1.16.5
 def getInstalledPaperMinecraftVersion(localPaperName):
-    print("test")
+    mcVersionFull = re.search(r'(\d*\.*\d)+', localPaperName)
+    try:
+        mcVersion = mcVersionFull.group()
+    except AttributeError:
+        mcVersion = mcVersionFull
+    return mcVersion
 
+
+# = 550
 def getInstalledPaperVersion(localPaperName):
-    print("test")
+    paperBuildFull = re.search(r'([\d]*.jar)', localPaperName)
+    try:
+        paperBuild = paperBuildFull.group()
+    except AttributeError:
+        paperBuild = paperBuildFull
+    paperBuild = paperBuild.replace('.jar', '')
+    return paperBuild
+
+
+def findVersionGroup(mcVersion):
+    versionGroups = ['1.16', '1.15']
+    versionGroupFound = False
+    for versionGroup in versionGroups:
+        if versionGroupFound == True:
+            break
+        url = f"https://papermc.io/api/v2/projects/paper/version_group/{versionGroup}/builds"
+        papermcdetails = doAPIRequest(url)
+        papermcVersionForMc = papermcdetails["versions"]
+        for versions in papermcVersionForMc:
+            if versions == mcVersion:
+                versionGroupFound = True
+                paperVersionGroup = versionGroup
+                break
+            if versionGroup == mcVersion:
+                versionGroupFound = True
+                paperVersionGroup = versionGroup
+                print(versionGroup)
+                break
+
+    return paperVersionGroup
+
+
+def findLatestBuild(paperVersionGroup):
+    url = f"https://papermc.io/api/v2/projects/paper/version_group/{paperVersionGroup}/builds"
+    papermcbuilds = doAPIRequest(url)
+    latestPaperBuild = papermcbuilds["builds"][-1]["build"]
+    return latestPaperBuild
+
+
+def versionBehind(installedPaperBuild, latestPaperBuild):
+    installedPaperBuildint = int(installedPaperBuild)
+    latestPaperBuildint = int(latestPaperBuild)
+    versionsBehind = latestPaperBuildint - installedPaperBuildint
+    return versionsBehind
+
+
+
+def getDownloadFileName(paperMcVersion, paperBuild):
+    url = f"https://papermc.io/api/v2/projects/paper/versions/{paperMcVersion}/builds/{paperBuild}"
+    buildDetails = doAPIRequest(url)
+    downloadName = buildDetails["downloads"]["application"]["name"]
+    return downloadName
+
+
+def paperCheckForUpdate(installedServerjarFullName):
+    mcVersion = getInstalledPaperMinecraftVersion(installedServerjarFullName)
+    paperInstalledBuild = getInstalledPaperVersion(installedServerjarFullName)
+    versionGroup = findVersionGroup(mcVersion)
+    paperLatestBuild = findLatestBuild(versionGroup)
+    paperVersionBehind = versionBehind(paperInstalledBuild, paperLatestBuild)
+
+    print(f"Paper for {mcVersion}")
+    print("Index | Name               |   Old V.   |   New V.   | Versions behind ")
+    print(f" [1]".ljust(8), end='')
+    print(f"paper".ljust(24), end='')
+    print(f"{paperInstalledBuild}".ljust(8), end='')
+    print("     ", end='')
+    print(f"{paperLatestBuild}".ljust(8), end='')
+    print("     ", end='')
+    print(f"{paperVersionBehind}".ljust(8))
+
 
 # https://papermc.io/api/docs/swagger-ui/index.html?configUrl=/api/openapi/swagger-config#/
-def papermc_downloader(paperBuild, paperVersionGroup='1.16'):
-    url = f"https://papermc.io/api/v2/projects/paper/{serverVersion}/{inputPackageVersion}" # v1 is deprecated
-    #https://papermc.io/api/v2/projects/paper/version_group/1.16/builds      get all builds for all 1.16 versions
-    #https://papermc.io/api/v2/projects/paper/versions/1.16.5/builds/450     gets file name
-    # input serverversion = 1.16.5 inputpackageversion = 450
-    # regex 1.16 % build url
-    # search for 450 in version group 1.16
-    # if found get file name from builds/450
-    # build url & download package
-    # https://papermc.io/api/v2/projects/paper/versions/1.16.5/builds/450/downloads/paper-1.16.5-450.jar
+def papermc_downloader(paperBuild='latest', installedServerjarName=None, mcVersion=None):
+    if checkConfig().localPluginFolder == False:
+        downloadPath = createTempPluginFolder()
+    else:
+        downloadPath = checkConfig().pathToPluginFolder
+        downloadPath = downloadPath.replace(r'\plugins', '')
 
+    if mcVersion == None:
+        mcVersion = '1.16.5'
+    
+    if installedServerjarName != None:
+        mcVersion = getInstalledPaperMinecraftVersion(installedServerjarName)
 
-    papermcdetails = doAPIRequest(url)
-    errorExists = papermcdetails["error"]
-    if errorExists in papermcdetails:
-        print(f"PaperMc version: {inputPackageVersion} couldn't be found")
-        print("Aborting the download of PaperMc.")
-        input("Press any key + enter to exit...")
-        sys.exit()
+    if paperBuild == 'latest':
+        versionGroup = findVersionGroup(mcVersion)
+        paperBuild = findLatestBuild(versionGroup)
+    try:
+        downloadFileName = getDownloadFileName(mcVersion, paperBuild)
+    except KeyError:
+        print(oColors.brightRed + f"This version wasn't found for {mcVersion}" + oColors.standardWhite)
+        print(oColors.brightRed + f"Reverting to latest version for {mcVersion}" + oColors.standardWhite)
+        versionGroup = findVersionGroup(mcVersion)
+        paperBuild = findLatestBuild(versionGroup)
+        downloadFileName = getDownloadFileName(mcVersion, paperBuild)
+
+    downloadPackagePath = f"{downloadPath}\\{downloadFileName}"
+
+    if checkConfig().localPluginFolder == False:
+        downloadPath = createTempPluginFolder()
+
+    url = f"https://papermc.io/api/v2/projects/paper/versions/{mcVersion}/builds/{paperBuild}/downloads/{downloadFileName}"
+    remotefile = urllib.request.urlopen(url)
+    filesize = remotefile.info()['Content-Length']
+    print(f"Starting paper-{paperBuild} download for {mcVersion}...")
+    urllib.request.urlretrieve(url, downloadPackagePath)
+    filesizeData = calculateFileSize(filesize)
+
+    print(f"Downloadsize: {filesizeData} KB")
+    print(f"File downloaded here: {downloadPackagePath}")
+    if not checkConfig().localPluginFolder:
+        sftpSession = createSFTPConnection()
+        sftp_upload_server_jar(sftpSession, downloadPackagePath)
+        deleteTempPluginFolder(downloadPath)
diff --git a/src/utils/utilities.py b/src/utils/utilities.py
index d6b503a..5190bb2 100644
--- a/src/utils/utilities.py
+++ b/src/utils/utilities.py
@@ -59,7 +59,7 @@ def check_requirements():
 
 
 def createTempPluginFolder():
-    tempPluginFolder = ".\\plugins"
+    tempPluginFolder = ".\\TempSFTPUploadFolder"
     if not os.path.isdir(tempPluginFolder):
         try:
             os.mkdir(tempPluginFolder)