diff --git a/CMakeLists.txt b/CMakeLists.txt
index b99c71fff..e110a1e43 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -19,13 +19,14 @@ include_directories(
 
 FILE(GLOB TINF "dependencies/tinf/src/*.c" "dependencies/tinf/src/*.h")
 FILE(GLOB HTTPInterface "src/cpp/HTTPInterface/*.h" "src/cpp/HTTPInterface/*.cpp")
+FILE(GLOB JSONInterface "src/cpp/JSONInterface/*.h" "src/cpp/JSONInterface/*.cpp")
 FILE(GLOB TASKS "src/cpp/tasks/*.cpp" "src/cpp/tasks/*.h")
 FILE(GLOB SINGLETON_MANAGER "src/cpp/SingletonManager/*.h" "src/cpp/SingletonManager/*.cpp")
 FILE(GLOB MODEL "src/cpp/model/*.h" "src/cpp/model/*.cpp")
 FILE(GLOB CRYPTO "src/cpp/Crypto/*.h" "src/cpp/Crypto/*.cpp")
 FILE(GLOB MAIN "src/cpp/*.cpp" "src/cpp/*.c"  "src/cpp/*.h")
 FILE(GLOB MYSQL "src/cpp/MySQL/*.cpp" "src/cpp/MySQL/*.h" "src/cpp/MySQL/Poco/*.h")
-SET(LOCAL_SRCS ${TINF} ${MAIN} ${HTTPInterface} ${CRYPTO} ${MODEL} ${SINGLETON_MANAGER} ${MYSQL} ${TASKS})
+SET(LOCAL_SRCS ${TINF} ${MAIN} ${HTTPInterface} ${JSONInterface} ${CRYPTO} ${MODEL} ${SINGLETON_MANAGER} ${MYSQL} ${TASKS})
 aux_source_directory("src/cpp" LOCAL_SRCS)
 
 if(MSVC)
@@ -37,6 +38,7 @@ source_group("model" FILES ${MODEL})
 source_group("mysql" FILES ${MYSQL})
 source_group("SingletonManager" FILES ${SINGLETON_MANAGER})
 source_group("HTTP-Interface" FILES ${HTTPInterface})
+source_group("Json-Interface" FILES ${JSONInterface})
 
 endif(MSVC)
 
diff --git a/src/cpp/Gradido_LoginServer.cpp b/src/cpp/Gradido_LoginServer.cpp
index d1049686a..e6d96d964 100644
--- a/src/cpp/Gradido_LoginServer.cpp
+++ b/src/cpp/Gradido_LoginServer.cpp
@@ -1,6 +1,7 @@
 #include "Gradido_LoginServer.h"
 #include "ServerConfig.h"
 #include "HTTPInterface/PageRequestHandlerFactory.h"
+#include "JSONInterface/JsonRequestHandlerFactory.h"
 
 #include "model/Profiler.h"
 
@@ -81,6 +82,7 @@ int Gradido_LoginServer::main(const std::vector<std::string>& args)
 	else
 	{
 		unsigned short port = (unsigned short)config().getInt("HTTPServer.port", 9980);
+		unsigned short json_port = (unsigned short)config().getInt("JSONServer.port", 1201);
 	
 		// load word lists
 		if (!ServerConfig::loadMnemonicWordLists()) {
@@ -155,27 +157,33 @@ int Gradido_LoginServer::main(const std::vector<std::string>& args)
 		requestLog.setChannel(requestLogAsyncChannel);
 		requestLog.setLevel("information");
 
+		// HTTP Interface Server
 		// set-up a server socket
 		Poco::Net::ServerSocket svs(port);
 		// set-up a HTTPServer instance
 		Poco::ThreadPool& pool = Poco::ThreadPool::defaultPool();
 		Poco::Net::HTTPServer srv(new PageRequestHandlerFactory, svs, new Poco::Net::HTTPServerParams);
 		ServerConfig::g_ServerKeySeed->put(7, 918276611);
-		Poco::Int64 key[6];
-		const unsigned char* seed = *ServerConfig::g_ServerKeySeed;
-		// skip first two values
-		seed += 16;
-		memcpy(key, seed, 6 * 8);
-		printf("key: 0x%llx 0x%llx 0x%llx 0x%llx 0x%llx 0x%llx\n", 
-			key[0], key[1], key[2], key[3], key[4], key[5]);
+		
 		// start the HTTPServer
 		srv.start();
+
+		// JSON Interface Server
+		Poco::Net::ServerSocket json_svs(json_port);
+		Poco::Net::HTTPServer json_srv(new JsonRequestHandlerFactory, json_svs, new Poco::Net::HTTPServerParams);
+
+		// start the json server
+		json_srv.start();
+
 		printf("[Gradido_LoginServer::main] started in %s\n", usedTime.string().data());
 		// wait for CTRL-C or kill
 		waitForTerminationRequest();
 
 		// Stop the HTTPServer
 		srv.stop();
+		// Stop the json server
+		json_srv.stop();
+
 		ServerConfig::unload();
 		Poco::Net::uninitializeSSL();
 	}
diff --git a/src/cpp/JSONInterface/JsonGetLogin.cpp b/src/cpp/JSONInterface/JsonGetLogin.cpp
new file mode 100644
index 000000000..c9d973cc7
--- /dev/null
+++ b/src/cpp/JSONInterface/JsonGetLogin.cpp
@@ -0,0 +1,81 @@
+#include "JsonGetLogin.h"
+#include "Poco/URI.h"
+
+#include "../SingletonManager/SessionManager.h"
+
+Poco::JSON::Object JsonGetLogin::handle(Poco::Dynamic::Var params)
+{
+	
+	int session_id = 0;
+	Poco::JSON::Object result;
+	if (params.isStruct()) {
+		session_id = params["session_id"];
+		//std::string miau = params["miau"];
+	}
+	else if (params.isVector()) {
+		try {
+			const Poco::URI::QueryParameters queryParams = params.extract<Poco::URI::QueryParameters>();
+			for (auto it = queryParams.begin(); it != queryParams.end(); it++) {
+				if (it->first == "session_id") {
+					session_id = stoi(it->second);
+					break;
+				}
+			}
+			//auto var = params[0];
+		}
+		catch (const std::invalid_argument& ia) {
+			result.set("state", "error");
+			result.set("msg", "error parsing query params, invalid argument: ");
+			result.set("details", ia.what());
+			return result;
+		}
+		catch (const std::out_of_range& oor) {
+			result.set("state", "error");
+			result.set("msg", "error parsing query params, Out of Range error: ");
+			result.set("details", oor.what());
+			return result;
+		}
+		catch (const std::logic_error & ler) {
+			result.set("state", "error");
+			result.set("msg", "error parsing query params, Logical error: ");
+			result.set("details", ler.what());
+			return result;
+		}
+		catch (Poco::Exception& ex) {
+			//printf("[JsonGetLogin::handle] exception: %s\n", ex.displayText().data());
+			result.set("state", "error");
+			result.set("msg", "error parsing query params, Poco Error");
+			result.set("details", ex.displayText());
+			return result;
+		}
+	}
+	
+	if (session_id) {
+		auto sm = SessionManager::getInstance();
+		auto session = sm->getSession(session_id);
+		if (session) {
+			auto user = session->getUser();
+			if (!user) {
+				result.set("state", "not found");
+				result.set("msg", "Session didn't contain user");
+				return result;
+			}
+			result.set("state", "success");
+			result.set("clientIP", session->getClientIp());
+			result.set("user", user->getJson());
+			return result;
+		}
+		else {
+			result.set("state", "not found");
+			result.set("msg", "Session not found");
+			return result;
+		}
+		
+	}
+	else {
+		result.set("state", "error");
+		result.set("msg", "empty session id");
+	}
+
+	return result;
+}
\ No newline at end of file
diff --git a/src/cpp/JSONInterface/JsonGetLogin.h b/src/cpp/JSONInterface/JsonGetLogin.h
new file mode 100644
index 000000000..e80435e25
--- /dev/null
+++ b/src/cpp/JSONInterface/JsonGetLogin.h
@@ -0,0 +1,16 @@
+#ifndef __JSON_INTERFACE_JSON_GET_LOGIN_
+#define __JSON_INTERFACE_JSON_GET_LOGIN_
+
+#include "JsonRequestHandler.h"
+
+class JsonGetLogin : public JsonRequestHandler
+{
+public:
+	Poco::JSON::Object handle(Poco::Dynamic::Var params);
+
+protected:
+	
+
+};
+
+#endif // __JSON_INTERFACE_JSON_GET_LOGIN_
\ No newline at end of file
diff --git a/src/cpp/JSONInterface/JsonRequestHandler.cpp b/src/cpp/JSONInterface/JsonRequestHandler.cpp
new file mode 100644
index 000000000..6d4058e42
--- /dev/null
+++ b/src/cpp/JSONInterface/JsonRequestHandler.cpp
@@ -0,0 +1,48 @@
+#include "JsonRequestHandler.h"
+
+#include "Poco/Net/HTTPServerRequest.h"
+#include "Poco/Net/HTTPServerResponse.h"
+
+#include "Poco/URI.h"
+#include "Poco/DeflatingStream.h"
+
+#include "Poco/JSON/Parser.h"
+
+
+
+void JsonRequestHandler::handleRequest(Poco::Net::HTTPServerRequest& request, Poco::Net::HTTPServerResponse& response)
+{
+
+	response.setChunkedTransferEncoding(true);
+	response.setContentType("application/json");
+	bool _compressResponse(request.hasToken("Accept-Encoding", "gzip"));
+	if (_compressResponse) response.set("Content-Encoding", "gzip");
+
+	std::ostream& _responseStream = response.send();
+	Poco::DeflatingOutputStream _gzipStream(_responseStream, Poco::DeflatingStreamBuf::STREAM_GZIP, 1);
+	std::ostream& responseStream = _compressResponse ? _gzipStream : _responseStream;
+
+	auto method = request.getMethod();
+	std::istream& request_stream = request.stream();
+	Poco::JSON::Object json_result;
+	if (method == "POST") {
+		// extract parameter from request
+		Poco::JSON::Parser jsonParser;
+		try {
+			auto params = jsonParser.parse(request_stream);
+			// call logic
+			json_result = handle(params);
+		}
+		catch (Poco::Exception& ex) {
+			printf("[JsonRequestHandler::handleRequest] Exception: %s\n", ex.displayText().data());
+		}
+	}
+	else if(method == "GET") {		
+		Poco::URI uri(request.getURI());
+		auto queryParameters = uri.getQueryParameters();
+		json_result = handle(queryParameters);
+	}
+	json_result.stringify(responseStream);
+
+	if (_compressResponse) _gzipStream.close();
+}
diff --git a/src/cpp/JSONInterface/JsonRequestHandler.h b/src/cpp/JSONInterface/JsonRequestHandler.h
new file mode 100644
index 000000000..57068b7fa
--- /dev/null
+++ b/src/cpp/JSONInterface/JsonRequestHandler.h
@@ -0,0 +1,19 @@
+#ifndef __JSON_INTERFACE_JSON_REQUEST_HANDLER_
+#define __JSON_INTERFACE_JSON_REQUEST_HANDLER_
+
+#include "Poco/Net/HTTPRequestHandler.h"
+#include "Poco/JSON/Object.h"
+
+class JsonRequestHandler : public Poco::Net::HTTPRequestHandler
+{
+public:
+	void handleRequest(Poco::Net::HTTPServerRequest& request, Poco::Net::HTTPServerResponse& response);
+
+	virtual Poco::JSON::Object handle(Poco::Dynamic::Var params) = 0;
+
+protected:
+
+
+};
+
+#endif // __JSON_INTERFACE_JSON_REQUEST_HANDLER_
\ No newline at end of file
diff --git a/src/cpp/JSONInterface/JsonRequestHandlerFactory.cpp b/src/cpp/JSONInterface/JsonRequestHandlerFactory.cpp
new file mode 100644
index 000000000..31bb61775
--- /dev/null
+++ b/src/cpp/JSONInterface/JsonRequestHandlerFactory.cpp
@@ -0,0 +1,26 @@
+#include "JsonRequestHandlerFactory.h"
+
+#include "Poco/Net/HTTPServerRequest.h"
+
+#include "../SingletonManager/SessionManager.h"
+
+#include "JsonGetLogin.h"
+#include "JsonUnknown.h"
+
+JsonRequestHandlerFactory::JsonRequestHandlerFactory()	
+	: mRemoveGETParameters("^/([a-zA-Z0-9_-]*)")
+{
+}
+
+Poco::Net::HTTPRequestHandler* JsonRequestHandlerFactory::createRequestHandler(const Poco::Net::HTTPServerRequest& request)
+{
+	std::string uri = request.getURI();
+	std::string url_first_part;
+	mRemoveGETParameters.extract(uri, url_first_part);
+
+	if (url_first_part == "/login") {
+		return new JsonGetLogin;
+	}
+
+	return new JsonUnknown;
+}
diff --git a/src/cpp/JSONInterface/JsonRequestHandlerFactory.h b/src/cpp/JSONInterface/JsonRequestHandlerFactory.h
new file mode 100644
index 000000000..26fe5c023
--- /dev/null
+++ b/src/cpp/JSONInterface/JsonRequestHandlerFactory.h
@@ -0,0 +1,19 @@
+#ifndef __DR_JSON_REQUEST_HANDLER_FACTORY_H
+#define __DR_JSON_REQUEST_HANDLER_FACTORY_H
+
+#include "Poco/Net/HTTPRequestHandlerFactory.h"
+#include "Poco/RegularExpression.h"
+
+#define HTTP_PAGES_COUNT 1
+
+class JsonRequestHandlerFactory : public Poco::Net::HTTPRequestHandlerFactory
+{
+public:
+	JsonRequestHandlerFactory();
+	Poco::Net::HTTPRequestHandler* createRequestHandler(const Poco::Net::HTTPServerRequest& request);
+
+protected:
+	Poco::RegularExpression mRemoveGETParameters;
+};
+
+#endif // __DR_JSON_REQUEST_HANDLER_FACTORY_H
\ No newline at end of file
diff --git a/src/cpp/JSONInterface/JsonUnknown.cpp b/src/cpp/JSONInterface/JsonUnknown.cpp
new file mode 100644
index 000000000..07612c2ec
--- /dev/null
+++ b/src/cpp/JSONInterface/JsonUnknown.cpp
@@ -0,0 +1,11 @@
+#include "JsonUnknown.h"
+
+Poco::JSON::Object JsonUnknown::handle(Poco::Dynamic::Var params)
+{
+	Poco::JSON::Object result;
+
+	result.set("state", "error");
+	result.set("msg", "unknown call");
+
+	return result;
+}
\ No newline at end of file
diff --git a/src/cpp/JSONInterface/JsonUnknown.h b/src/cpp/JSONInterface/JsonUnknown.h
new file mode 100644
index 000000000..62c8eb34c
--- /dev/null
+++ b/src/cpp/JSONInterface/JsonUnknown.h
@@ -0,0 +1,16 @@
+#ifndef __JSON_INTERFACE_JSON_UNKNOWN_
+#define __JSON_INTERFACE_JSON_UNKNOWN_
+
+#include "JsonRequestHandler.h"
+
+class JsonUnknown : public JsonRequestHandler
+{
+public:
+	Poco::JSON::Object handle(Poco::Dynamic::Var params);
+
+protected:
+
+
+};
+
+#endif // __JSON_INTERFACE_JSON_UNKNOWN_
\ No newline at end of file
diff --git a/src/cpp/model/Session.h b/src/cpp/model/Session.h
index db563a9cf..e32588e3d 100644
--- a/src/cpp/model/Session.h
+++ b/src/cpp/model/Session.h
@@ -78,7 +78,7 @@ public:
 	bool generateKeys(bool savePrivkey, bool savePassphrase);
 
 	inline void setClientIp(Poco::Net::IPAddress ip) { mClientLoginIP = ip; }
-	
+	inline Poco::Net::IPAddress getClientIp() { return mClientLoginIP; }
 	 
 	inline bool isIPValid(Poco::Net::IPAddress ip) { return mClientLoginIP == ip; }
 	bool isPwdValid(const std::string& pwd);
diff --git a/src/cpp/model/User.cpp b/src/cpp/model/User.cpp
index 8b2614084..ad5066e4f 100644
--- a/src/cpp/model/User.cpp
+++ b/src/cpp/model/User.cpp
@@ -361,6 +361,19 @@ UserStates User::getUserState()
 	return state;
 }
 
+Poco::JSON::Object User::getJson()
+{
+	lock();
+	Poco::JSON::Object userObj;
+	userObj.set("first_name", mFirstName);
+	userObj.set("last_name", mLastName);
+	userObj.set("email", mEmail);
+	userObj.set("public_hex", mPublicHex);
+	userObj.set("state", userStateToString(mState));
+	unlock();
+	return userObj;
+}
+
 // TODO: if a password and privkey already exist, load current private key and re encrypt with new crypto key
 bool User::setNewPassword(const std::string& newPassword)
 {
@@ -692,4 +705,18 @@ bool User::loadEntryDBId(Poco::Data::Session session)
 	}
 
 	return true;
+}
+
+const char* User::userStateToString(UserStates state)
+{
+	switch (state) {
+	case USER_EMPTY: return "empty";
+	case USER_LOADED_FROM_DB: return "loaded from db";
+	case USER_PASSWORD_INCORRECT: return "password incorrect";
+	case USER_EMAIL_NOT_ACTIVATED: return "email not activated";
+	case USER_NO_KEYS: return "no keys";
+	case USER_NO_PRIVATE_KEY: return "no private key";
+	case USER_COMPLETE: return "complete";
+	}
+	return "- unknown -";
 }
\ No newline at end of file
diff --git a/src/cpp/model/User.h b/src/cpp/model/User.h
index f277cba6b..75599f872 100644
--- a/src/cpp/model/User.h
+++ b/src/cpp/model/User.h
@@ -8,6 +8,7 @@
 #include "Poco/Thread.h"
 #include "Poco/Types.h"
 #include "Poco/Data/Session.h"
+#include "Poco/JSON/Object.h"
 #include "../tasks/CPUTask.h"
 
 class NewUser;
@@ -57,6 +58,7 @@ public:
 
 	static std::string generateNewPassphrase(Mnemonic* word_source);
 	static bool validatePassphrase(const std::string& passphrase);
+	static const char* userStateToString(UserStates state);
 	//static User* login(const std::string& email, const std::string& password, ErrorList* errorContainer = nullptr);
 
 	bool generateKeys(bool savePrivkey, const std::string& passphrase, Session* session);
@@ -83,7 +85,7 @@ public:
 	
 	Poco::Data::BLOB* encrypt(const ObfusArray* data);
 
-	
+	Poco::JSON::Object getJson();
 
 	// for poco auto ptr
 	void duplicate();