diff --git a/user_api/call2api.py b/user_api/call2api.py
new file mode 100644
index 0000000..9b7b133
--- /dev/null
+++ b/user_api/call2api.py
@@ -0,0 +1,50 @@
+from aiohttp import ClientSession
+from json import dumps, loads
+import asyncio
+
+from db import read, write
+CONFIG = asyncio.run(read())
+global url_prefix
+url_prefix = CONFIG['system_api_url']
+
+async def call(api_url, data, pre=True, fix=True):
+	url = (url_prefix + api_url) if pre else api_url
+	async with ClientSession() as session:
+		async with session.post(url, json=data) as response:
+			text = await response.text()
+			try:
+				json = loads(text)
+				if 'detail' in json:
+					return json['detail']
+				else:
+					return json
+			except:
+				if fix:
+					return text.replace('"', '')
+				else:
+					return text
+
+async def check_user_token(token, username, user_token):
+	data = {'token': token, 'username': username, 'user_token': user_token}
+	return await call('api/check_user_token/', data)
+
+async def user_in_db(token, username=None, creator_id=None, tg_id=None, ds_id=None, mine_name=None):
+	data = {'token': token}
+	if username:
+		data['username'] = username
+	if creator_id:
+		data['creator_id'] = creator_id
+	if tg_id:
+		data['tg_id'] = tg_id
+	if ds_id:
+		data['ds_id'] = ds_id
+	if mine_name:
+		data['mine_name'] = mine_name
+	return await call('api/user_in_db/', data)
+
+async def transfer_coins(token, src_username, dst_username, amount):
+	data = {'token': token, 'src_username': src_username, 'dst_username': dst_username, 'amount': amount}
+	return await call('api/transfer_coins/', data)
+
+async def get_stats(token):
+	return await call('api/get_stats/', token)
\ No newline at end of file
diff --git a/user_api/call2user_api.py b/user_api/call2user_api.py
new file mode 100644
index 0000000..30ecfe1
--- /dev/null
+++ b/user_api/call2user_api.py
@@ -0,0 +1,57 @@
+from aiohttp import ClientSession
+from json import dumps, loads
+import asyncio
+
+from db import read, write
+
+global url_prefix
+url_prefix = 'http://127.0.0.1:8010/'
+
+# async def call(api_url, data, pre=True, fix=True):
+# 	url = (url_prefix + api_url) if pre else api_url
+# 	async with ClientSession() as session:
+# 		async with session.post(url, json=data) as response:
+# 			text = await response.text()
+# 			try:
+# 				json = loads(text)
+# 				if 'detail' in json:
+# 					return json['detail']
+# 				else:
+# 					return json
+# 			except:
+# 				if fix:
+# 					return text.replace('"', '')
+# 				else:
+# 					return text
+from call2api import call
+
+#------------------------------------------------------------
+# UserAPI
+#------------------------------------------------------------
+async def get_user_token_info(username, user_token):
+	data = {'username': username, 'user_token': user_token}
+	return await call('api/get_user_token_info/', data)
+
+async def user_in_db(username, user_token):
+	data = {'username': username, 'user_token': user_token}
+	return await call('api/user_in_db/', data)
+
+async def transfer_coins(username, user_token,
+						 dst_username, amount):
+	data = {'username': username, 'user_token': user_token,
+			'dst_username': dst_username, 'amount': amount}
+	return await call('api/transfer_coins/', data)
+#------------------------- END ------------------------------
+
+
+#------------------------------------------------------------
+# SystemAPI usage only
+#------------------------------------------------------------
+async def register_user_token(token, user_token):
+	data = {'token': token, 'user_token': user_token}
+	return await call('api/register_user_token/', data)
+
+async def unregister_user_token(token, user_token):
+	data = {'token': token, 'user_token': user_token}
+	return await call('api/unregister_user_token/', data)
+#------------------------- END ------------------------------
\ No newline at end of file
diff --git a/user_api/db.py b/user_api/db.py
new file mode 100644
index 0000000..53c3593
--- /dev/null
+++ b/user_api/db.py
@@ -0,0 +1,80 @@
+# SQL
+from sqlmodel import Field, SQLModel, or_, select
+from sqlmodel.ext.asyncio.session import AsyncSession
+from sqlalchemy.ext.asyncio import create_async_engine
+# CONFIGS
+from os import path
+import json
+import aiofiles
+
+from datetime import datetime
+
+#------------------------------------------------------------
+# INIT
+#------------------------------------------------------------
+global engine
+def init_engine():
+	global engine
+	sqlite_file_name = "database.db"
+	sqlite_url = f"sqlite+aiosqlite:///{sqlite_file_name}"
+	engine = create_async_engine(sqlite_url)
+
+async def create_db_and_tables():
+	async with engine.begin() as conn:
+		await conn.run_sync(SQLModel.metadata.create_all)
+
+async def get_session():
+	async with AsyncSession(engine) as session:
+		yield session
+
+#------------------------- END ------------------------------
+
+
+#------------------------------------------------------------
+# TABLES
+#------------------------------------------------------------
+class UserToken(SQLModel, table=True):
+	def __init__(self, token, logs=""):
+		self.token = token
+		self.logs = logs
+		self.issue_date = datetime.today().strftime('%Y-%m-%d')
+	token: str = Field(max_length=200, primary_key=True)
+	logs: str = Field()
+	issue_date: str = Field()
+#------------------------- END ------------------------------
+
+
+#------------------------------------------------------------
+# JSONS / CONFIGS
+#------------------------------------------------------------
+config_file = 'config.json'
+if not path.exists(config_file):
+	db = {'system_api_token': 'None',
+		  'system_api_url': 'None'}
+	js = json.dumps(db, indent=2)
+	with open(config_file, "w") as outfile:
+		outfile.write(js)
+	print(f'Created new {config_file}')
+
+async def read(file=config_file):
+	async with aiofiles.open(file, "r", encoding="utf-8") as openfile:
+		content = await openfile.read()
+		db = json.loads(content)
+	return db
+
+async def write(db, file=config_file):
+	js = json.dumps(db, indent=2, ensure_ascii=False)
+	async with aiofiles.open(file, "w", encoding="utf-8") as outfile:
+		await outfile.write(js)
+
+#------------------------- END ------------------------------
+
+async def user_token_in_db_func(
+	session: AsyncSession,
+	user_token: str
+):
+	statement = select(UserToken).where(UserToken.token == user_token)
+	result = await session.exec(statement)
+	# Get the first result or None if not found
+	user_token_obj = result.first()
+	return user_token_obj
\ No newline at end of file
diff --git a/user_api/user_api.py b/user_api/user_api.py
new file mode 100644
index 0000000..e770ed8
--- /dev/null
+++ b/user_api/user_api.py
@@ -0,0 +1,129 @@
+from fastapi import Depends, FastAPI, HTTPException, Query, Body
+from contextlib import asynccontextmanager
+import asyncio
+from statistics import median
+
+from db import *
+from call2api import check_user_token, user_in_db, transfer_coins, get_stats
+
+
+#------------------------------------------------------------
+# INIT
+#------------------------------------------------------------
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+	init_engine()
+	await create_db_and_tables()
+	yield
+
+app = FastAPI(lifespan=lifespan)
+
+CONFIG = asyncio.run(read())
+SYSTEM_API_TOKEN = CONFIG['system_api_token']
+#------------------------- END ------------------------------
+
+
+#------------------------------------------------------------
+# APIs (main code)
+#------------------------------------------------------------
+async def token_check(username, user_token):
+	return await check_user_token(SYSTEM_API_TOKEN, username, user_token)
+
+@app.post('/api/register_user_token/')
+async def register_user_token_api(
+	token: str = Body(),
+	user_token: str = Body(),
+	session: AsyncSession = Depends(get_session)
+):
+	if token != SYSTEM_API_TOKEN:
+		raise HTTPException(status_code=401, detail='Invalid token')
+	user_token_db = await user_token_in_db_func(session, user_token)
+	if user_token_db:
+		raise HTTPException(status_code=409, detail='Token already exist')
+	new_user_token = UserToken(token=user_token)
+	try:
+		session.add(new_user_token)
+		await session.commit()
+		await session.refresh(new_user_token)
+		return 'OK'
+	except Exception as e:
+		await session.rollback()
+		raise HTTPException(status_code=500, detail=str(e))
+
+@app.post('/api/unregister_user_token/')
+async def unregister_user_token_api(
+	token: str = Body(),
+	user_token: str = Body(),
+	session: AsyncSession = Depends(get_session)
+):
+	if token != SYSTEM_API_TOKEN:
+		raise HTTPException(status_code=401, detail='Invalid token')
+	user_token_db = await user_token_in_db_func(session, user_token)
+	if not user_token_db:
+		raise HTTPException(status_code=409, detail='Token not exist')
+	try:
+		await session.delete(user_token_db)
+		await session.commit()
+		return 'OK'
+	except Exception as e:
+		await session.rollback()
+		raise HTTPException(status_code=500, detail=str(e))
+
+@app.post('/api/get_user_token_info/')
+async def get_user_token_info_api(
+	username: str | None = Body(None),
+	user_token: str = Body(),
+	session: AsyncSession = Depends(get_session)
+):
+	if not token_check(username, user_token):
+		raise HTTPException(status_code=401, detail='Invalid username or token')
+	user_token_db = await user_token_in_db_func(session, user_token)
+	if not user_token_db:
+		raise HTTPException(status_code=409, detail='Token not exist')
+	# Force data retrieval (DB can not load it properly, because it "lazy")
+	issue_date = await session.run_sync(lambda sess: user_token_db.issue_date)
+	logs = await session.run_sync(lambda sess: user_token_db.logs)
+	return {'issue_date': issue_date, 'logs': logs}
+
+@app.post('/api/user_in_db/')
+async def user_in_db_api(
+	username: str | None = Body(None),
+	user_token: str = Body(),
+	session: AsyncSession = Depends(get_session)
+):
+	if not token_check(username, user_token):
+		raise HTTPException(status_code=401, detail='Invalid username or token')
+	return await user_in_db(token=SYSTEM_API_TOKEN, username=username)
+
+@app.post('/api/transfer_coins/')
+async def transfer_coins_api(
+	username: str = Body(),
+	user_token: str = Body(),
+	dst_username: str = Body(),
+	amount: float = Body(),
+	session: AsyncSession = Depends(get_session)
+):
+	if not token_check(username, user_token):
+		raise HTTPException(status_code=401, detail='Invalid username or token')
+	return await transfer_coins(token=SYSTEM_API_TOKEN, src_username=username
+								, dst_username=dst_username, amount=amount)
+
+@app.post('/api/get_stats/')
+async def get_stats_api(
+	username: str = Body(),
+	user_token: str = Body()
+):
+	if not token_check(username, user_token):
+		raise HTTPException(status_code=401, detail='Invalid username or token')
+	return await get_stats(token=SYSTEM_API_TOKEN)
+
+#------------------------- END ------------------------------
+
+
+#------------------------------------------------------------
+# START
+#------------------------------------------------------------
+if __name__ == '__main__':
+	import uvicorn
+	uvicorn.run(app, host='0.0.0.0', port=8010)
+#------------------------- END ------------------------------
\ No newline at end of file