diff --git a/api.py b/api.py
index 3a20322..7b791df 100644
--- a/api.py
+++ b/api.py
@@ -1,4 +1,5 @@
 import requests
+from models.system import System
 from util import *
 
 class ApiError(Exception):
@@ -17,9 +18,8 @@ class Api:
       raise ApiError('no token. Please register', 1337)
     return self.agent.token
     
-  def request(self, method, path, data=None, need_token=True):
+  def request(self, method, path, data=None, need_token=True, params={}):
     headers = {}
-    params = {}
     if need_token:
       headers['Authorization'] = 'Bearer ' + self.token()
     if method == 'get':
@@ -53,4 +53,9 @@ class Api:
     data = self.request('get', 'my/agent')
     self.agent.update(data)
     return self.agent
+  
+  def list_systems(self, page=1):
+    data = self.request('get', 'systems', params={'page': page})
+    return self.store.update_list(System, data)
+    
     
diff --git a/commander.py b/commander.py
index cef7ef4..6395af7 100644
--- a/commander.py
+++ b/commander.py
@@ -29,15 +29,14 @@ class Commander(CommandLine):
   def after_cmd(self):
     self.store.flush()
       
-  def do_foo(self):
-    self.store.foo()
-    self.store.flush()
-  
   def do_info(self):
     pprint(self.api.info(), 100)
     
   def do_register(self, faction):
     self.api.register(faction.upper())
+  
+  def do_systems(self, page=1):
+    self.api.list_systems(int(page))
 
 def main(args):
   c = Commander(args.store_dir, args.agent)
diff --git a/models/agent.py b/models/agent.py
index 9a6ca80..ba8beac 100644
--- a/models/agent.py
+++ b/models/agent.py
@@ -5,7 +5,7 @@ class Agent(Base):
   credits: int = 0
   
   def update(self, d):
-    self.seta(d, 'credits')
+    self.seta('credits', d)
     
   def path(self):
     return f'{self.symbol}.{self.ext()}'
diff --git a/models/base.py b/models/base.py
index 294c6b6..1101d22 100644
--- a/models/base.py
+++ b/models/base.py
@@ -1,6 +1,6 @@
 from copy import deepcopy
 from dataclasses import dataclass
-
+from util import sg
 @dataclass
 class Base:
   symbol: str
@@ -11,9 +11,12 @@ class Base:
     self.store = store
     self.dirty = True
   
-  def seta(self, d, name):
-    if name in d:
-      setattr(self, name, d[name])
+  def seta(self, attr,  d, name=None):
+    if name is None:
+      name = attr
+    val = sg(d, name)
+    if val is not None:
+      setattr(self, attr, val)
       
   def __setattr__(self, name, value):
     if name != 'dirty':
diff --git a/models/system.py b/models/system.py
index 371ec75..ae7ad0b 100644
--- a/models/system.py
+++ b/models/system.py
@@ -3,6 +3,15 @@ from .base import Base
 
 
 class System(Base):
+  x:int = 0
+  y:int = 0
+  type:str = 'unknown'
+  
+  def update(self, d):
+    self.seta('x', d)
+    self.seta('y', d)
+    self.seta('type', d)
+    
   @classmethod
   def ext(self):
     return 'stm'
diff --git a/store.py b/store.py
index 9b84ada..0b3b077 100644
--- a/store.py
+++ b/store.py
@@ -6,6 +6,7 @@ from models.agent import Agent
 from os.path import isfile, dirname, isdir
 import os
 import json
+from util import *
 
 class Store:
   def __init__(self, data_dir):
@@ -41,6 +42,14 @@ class Store:
     self.data[symbol] = obj
     return obj
   
+  def update(self, typ, symbol, data):
+    obj = self.get(typ, symbol)
+    obj.update(data)
+    return obj
+  
+  def update_list(self, typ, lst):
+    return [self.update(typ, mg(d, 'symbol'), d) for d in lst]
+    
   def all(self, path, typ):
     if hasattr(path, 'path'):
       path = path.path()
@@ -62,7 +71,3 @@ class Store:
     for obj in self.data.values():
       if obj.dirty:
         self.store(obj)
-      
-  def foo(self):
-    s = self.get(System, 'dez-hq14')
-    print(s)