diff --git a/pysearpc/Makefile.am b/pysearpc/Makefile.am
index b81efe8..ac19fa5 100644
--- a/pysearpc/Makefile.am
+++ b/pysearpc/Makefile.am
@@ -1,5 +1,5 @@
 
 pysearpcdir=${pyexecdir}/pysearpc
 
-pysearpc_PYTHON = __init__.py client.py
+pysearpc_PYTHON = __init__.py common.py client.py server.py
 
diff --git a/pysearpc/__init__.py b/pysearpc/__init__.py
index 4703b7d..33c7fed 100644
--- a/pysearpc/__init__.py
+++ b/pysearpc/__init__.py
@@ -1,2 +1,3 @@
-
-from client import SearpcClient, searpc_func, SearpcError, SearpcObjEncoder
+from common import SearpcError
+from client import SearpcClient, searpc_func, SearpcObjEncoder
+from server import searpc_server
diff --git a/pysearpc/client.py b/pysearpc/client.py
index f44b1aa..2bd75e9 100644
--- a/pysearpc/client.py
+++ b/pysearpc/client.py
@@ -1,19 +1,12 @@
 import simplejson as json
-
-class SearpcError(Exception):
-
-    def __init__(self, msg):
-        self.msg = msg
-
-    def __str__(self):
-        return self.msg
+from common import SearpcError
 
 def _fret_int(ret_str):
     try:
         dicts = json.loads(ret_str)
     except:
         raise SearpcError('Invalid response format')
-        
+
     if dicts.has_key('err_code'):
         raise SearpcError(dicts['err_msg'])
 
@@ -27,7 +20,7 @@ def _fret_string(ret_str):
         dicts = json.loads(ret_str)
     except:
         raise SearpcError('Invalid response format')
-        
+
     if dicts.has_key('err_code'):
         raise SearpcError(dicts['err_msg'])
 
@@ -67,29 +60,29 @@ def _fret_obj(ret_str):
         dicts = json.loads(ret_str)
     except:
         raise SearpcError('Invalid response format')
-        
+
     if dicts.has_key('err_code'):
         raise SearpcError(dicts['err_msg'])
-        
+
     if dicts['ret']:
         return _SearpcObj(dicts['ret'])
     else:
         return None
-    
+
 def _fret_objlist(ret_str):
     try:
         dicts = json.loads(ret_str)
     except:
         raise SearpcError('Invalid response format')
-        
+
     if dicts.has_key('err_code'):
         raise SearpcError(dicts['err_msg'])
-        
+
     l = []
     if dicts['ret']:
         for elt in dicts['ret']:
             l.append(_SearpcObj(elt))
-        
+
     return l
 
 
diff --git a/pysearpc/common.py b/pysearpc/common.py
new file mode 100644
index 0000000..82b52ea
--- /dev/null
+++ b/pysearpc/common.py
@@ -0,0 +1,7 @@
+class SearpcError(Exception):
+
+    def __init__(self, msg):
+        self.msg = msg
+
+    def __str__(self):
+        return self.msg
diff --git a/pysearpc/server.py b/pysearpc/server.py
new file mode 100644
index 0000000..1e0a528
--- /dev/null
+++ b/pysearpc/server.py
@@ -0,0 +1,51 @@
+import simplejson as json
+
+from common import SearpcError
+
+class SearpcService(object):
+    def __init__(self, name):
+        self.name = name
+        self.func_table = {}
+
+class SearpcServer(object):
+    def __init__(self):
+        self.services = {}
+
+    def create_service(self, svcname):
+        service = SearpcService(svcname)
+        self.services[svcname] = service
+
+    def register_function(self, svcname, fn, fname=None):
+        service = self.services[svcname]
+        if fname == None:
+            fname = fn.__name__
+        service.func_table[fname] = fn
+
+    def _call_function(self, svcname, fcallstr):
+        """input str -> output str"""
+        try:
+            argv = json.loads(fcallstr)
+        except Exception, e:
+            raise SearpcError('bad call str: ' + str(e))
+
+        service = self.services[svcname]
+
+        fname = argv[0]
+        fn = service.func_table.get(fname, None)
+        if fn is None:
+            raise SearpcError('No such funtion %s' % fname)
+
+        ret = fn(*argv[1:])
+        return ret
+
+    def call_function(self, svcname, fcallstr):
+        try:
+            retVal = self._call_function(svcname, fcallstr)
+        except Exception, e:
+            ret = {'err_code': 555, 'err_msg': str(e)}
+        else:
+            ret = {'ret': retVal}
+
+        return json.dumps(ret)
+
+searpc_server = SearpcServer()