diff --git a/cic_syncer/backend.py b/chainsyncer/backend.py
similarity index 90%
rename from cic_syncer/backend.py
rename to chainsyncer/backend.py
index 8a8a564..d265ab7 100644
--- a/cic_syncer/backend.py
+++ b/chainsyncer/backend.py
@@ -1,9 +1,10 @@
 # standard imports
 import logging
+import uuid
 
 # local imports
-from cic_syncer.db.models.sync import BlockchainSync
-from cic_syncer.db.models.base import SessionBase
+from chainsyncer.db.models.sync import BlockchainSync
+from chainsyncer.db.models.base import SessionBase
 
 logg = logging.getLogger()
 
@@ -194,3 +195,22 @@ class SyncerBackend:
         session.close()
 
         return SyncerBackend(chain, object_id)
+
+
+class MemBackend:
+
+    def __init__(self, chain_spec, object_id):
+        self.object_id = object_id
+        self.chain_spec = chain_spec
+        self.block_height = 0
+        self.tx_height = 0
+
+
+    def set(self, block_height, tx_height):
+        logg.debug('stateless backend received {} {}'.format(block_height, tx_height))
+        self.block_height = block_height
+        self.tx_height = tx_height
+
+
+    def get(self):
+        return (self.block_height, self.tx_height)
diff --git a/cic_syncer/client/__init__.py b/chainsyncer/client/__init__.py
similarity index 100%
rename from cic_syncer/client/__init__.py
rename to chainsyncer/client/__init__.py
diff --git a/cic_syncer/client/block.py b/chainsyncer/client/block.py
similarity index 100%
rename from cic_syncer/client/block.py
rename to chainsyncer/client/block.py
diff --git a/cic_syncer/client/evm/response.py b/chainsyncer/client/evm/response.py
similarity index 89%
rename from cic_syncer/client/evm/response.py
rename to chainsyncer/client/evm/response.py
index 9d4f17a..bac12f2 100644
--- a/cic_syncer/client/evm/response.py
+++ b/chainsyncer/client/evm/response.py
@@ -1,8 +1,8 @@
 import json
 
-from cic_syncer.client import translate
-from cic_syncer.client.block import Block
-from cic_syncer.client.tx import Tx
+from chainsyncer.client import translate
+from chainsyncer.client.block import Block
+from chainsyncer.client.tx import Tx
 
 
 translations = {
diff --git a/cic_syncer/client/evm/websocket.py b/chainsyncer/client/evm/websocket.py
similarity index 92%
rename from cic_syncer/client/evm/websocket.py
rename to chainsyncer/client/evm/websocket.py
index 3a3ba4a..f857800 100644
--- a/cic_syncer/client/evm/websocket.py
+++ b/chainsyncer/client/evm/websocket.py
@@ -9,8 +9,8 @@ from hexathon import add_0x
 
 # local imports
 from .response import EVMResponse
-from cic_syncer.error import RequestError
-from cic_syncer.client.evm.response import EVMBlock
+from chainsyncer.error import RequestError
+from chainsyncer.client.evm.response import EVMBlock
 
 logg = logging.getLogger()
 
@@ -44,7 +44,7 @@ class EVMWebsocketClient:
         return res.get_result()
 
 
-    def get_block_by_integer(self, n):
+    def block_by_integer(self, n):
         req_id = str(uuid.uuid4())
         nhx = '0x' + n.to_bytes(8, 'big').hex()
         req = {
@@ -67,7 +67,7 @@ class EVMWebsocketClient:
         return EVMBlock(o['hash'], o)
 
 
-    def get_block_by_hash(self, hx_in):
+    def block_by_hash(self, hx_in):
         req_id = str(uuid.uuid4())
         hx = add_0x(hx_in)
         req ={
diff --git a/cic_syncer/client/translate.py b/chainsyncer/client/translate.py
similarity index 100%
rename from cic_syncer/client/translate.py
rename to chainsyncer/client/translate.py
diff --git a/cic_syncer/client/tx.py b/chainsyncer/client/tx.py
similarity index 100%
rename from cic_syncer/client/tx.py
rename to chainsyncer/client/tx.py
diff --git a/cic_syncer/db/__init__.py b/chainsyncer/db/__init__.py
similarity index 96%
rename from cic_syncer/db/__init__.py
rename to chainsyncer/db/__init__.py
index 6a33fef..bfb64c9 100644
--- a/cic_syncer/db/__init__.py
+++ b/chainsyncer/db/__init__.py
@@ -3,7 +3,7 @@ import os
 import logging
 
 # local imports
-from cic_syncer.db.models.base import SessionBase
+from chainsyncer.db.models.base import SessionBase
 
 logg = logging.getLogger()
 
diff --git a/cic_syncer/db/models/base.py b/chainsyncer/db/models/base.py
similarity index 100%
rename from cic_syncer/db/models/base.py
rename to chainsyncer/db/models/base.py
diff --git a/cic_syncer/db/models/sync.py b/chainsyncer/db/models/sync.py
similarity index 100%
rename from cic_syncer/db/models/sync.py
rename to chainsyncer/db/models/sync.py
diff --git a/cic_syncer/driver.py b/chainsyncer/driver.py
similarity index 78%
rename from cic_syncer/driver.py
rename to chainsyncer/driver.py
index 2068ea3..28073da 100644
--- a/cic_syncer/driver.py
+++ b/chainsyncer/driver.py
@@ -10,12 +10,11 @@ class Syncer:
 
     running_global = True
 
-    def __init__(self, backend, handler):
+    def __init__(self, backend):
         self.cursor = None
         self.running = True
         self.backend = backend
         self.filter = []
-        self.handler = handler
 
 
     def chain(self):
@@ -27,11 +26,14 @@ class Syncer:
         return self.bc_cache.chain()
 
 
+    def add_filter(self, f):
+        self.filter.append(f)
+
 
 class MinedSyncer(Syncer):
 
-    def __init__(self, backend, handler):
-        super(MinedSyncer, self).__init__(backend, handler)
+    def __init__(self, backend):
+        super(MinedSyncer, self).__init__(backend)
 
 
     def loop(self, interval, getter):
@@ -46,13 +48,13 @@ class MinedSyncer(Syncer):
 
 class HeadSyncer(MinedSyncer):
 
-    def __init__(self, backend, handler):
-        super(HeadSyncer, self).__init__(backend, handler)
+    def __init__(self, backend):
+        super(HeadSyncer, self).__init__(backend)
 
 
     def process(self, getter, block):
         logg.debug('process {}'.format(block))
-        block = getter.get_block_by_hash(block.hash)
+        block = getter.block_by_hash(block.hash)
         i = 0
         tx = None
         while True:
@@ -62,7 +64,7 @@ class HeadSyncer(MinedSyncer):
                 logg.debug('tx {}'.format(tx))
                 self.backend.set(block.number(), i)
                 for f in self.filter:
-                    f.handle(getter, block, tx)
+                    f(getter, block, tx)
             except IndexError as e:
                 self.backend.set(block.number() + 1, 0)
                 break
@@ -73,7 +75,7 @@ class HeadSyncer(MinedSyncer):
         (block_number, tx_number) = self.backend.get()
         block_hash = []
         uu = uuid.uuid4()
-        res = getter.get_block_by_integer(block_number)
+        res = getter.block_by_integer(block_number)
         logg.debug('get {}'.format(res))
 
         return res
diff --git a/cic_syncer/error.py b/chainsyncer/error.py
similarity index 100%
rename from cic_syncer/error.py
rename to chainsyncer/error.py
diff --git a/cic_syncer/runnable/tracker.py b/chainsyncer/runnable/tracker.py
similarity index 59%
rename from cic_syncer/runnable/tracker.py
rename to chainsyncer/runnable/tracker.py
index 7b9c5e3..9a46d90 100644
--- a/cic_syncer/runnable/tracker.py
+++ b/chainsyncer/runnable/tracker.py
@@ -9,12 +9,12 @@ import re
 
 # third-party imports
 import confini
-from cic_syncer.driver import HeadSyncer
-from cic_syncer.db import dsn_from_config
-from cic_syncer.db.models.base import SessionBase
-from cic_syncer.client.evm.websocket import EVMWebsocketClient
-from cic_syncer.backend import SyncerBackend
-from cic_syncer.error import LoopDone
+from chainlib.eth.connection import HTTPConnection
+from chainsyncer.driver import HeadSyncer
+from chainsyncer.db import dsn_from_config
+from chainsyncer.db.models.base import SessionBase
+from chainsyncer.backend import SyncerBackend
+from chainsyncer.error import LoopDone
 
 logging.basicConfig(level=logging.WARNING)
 logg = logging.getLogger()
@@ -55,7 +55,7 @@ config = confini.Config(config_dir, args.env_prefix)
 config.process()
 # override args
 args_override = {
-        'CIC_CHAIN_SPEC': getattr(args, 'i'),
+        'CHAIN_SPEC': getattr(args, 'i'),
         'ETH_PROVIDER': getattr(args, 'p'),
         }
 config.dict_override(args_override, 'cli flag')
@@ -70,58 +70,15 @@ queue = args.q
 dsn = dsn_from_config(config)
 SessionBase.connect(dsn)
 
-
-transfer_callbacks = []
-for cb in config.get('TASKS_SYNCER_CALLBACKS', '').split(','):
-    task_split = cb.split(':')
-    task_queue = queue
-    if len(task_split) > 1:
-        task_queue = task_split[0]
-    task_pair = (task_split[1], task_queue)
-    transfer_callbacks.append(task_pair)
-
-
-def tx_filter(w3, tx, rcpt, chain_spec):
-    tx_hash_hex = tx.hash.hex()
-    otx = Otx.load(tx_hash_hex)
-    if otx == None:
-        logg.debug('tx {} not found locally, skipping'.format(tx_hash_hex))
-        return None
-    logg.info('otx found {}'.format(otx.tx_hash))
-    s = celery.signature(
-            'cic_eth.queue.tx.set_final_status',
-            [
-                tx_hash_hex,
-                rcpt.blockNumber,
-                rcpt.status == 0,
-                ],
-            queue=queue,
-            )
-    t = s.apply_async()
-    return t
-
-
-re_websocket = re.compile('^wss?://')
-re_http = re.compile('^https?://')
-c = EVMWebsocketClient(config.get('ETH_PROVIDER'))
-chain = config.get('CIC_CHAIN_SPEC')
+c = HTTPConnection(config.get('ETH_PROVIDER'))
+chain = config.get('CHAIN_SPEC')
 
 
 def main(): 
     block_offset = c.block_number()
 
-    #syncer_backend = SyncerBackend.live(chain, block_offset+1)
     syncer_backend = SyncerBackend.live(chain, 0)
-    syncer = HeadSyncer(syncer_backend, handler)
-
-    for cb in config.get('TASKS_SYNCER_CALLBACKS', '').split(','):
-        task_split = cb.split(':')
-        task_queue = queue
-        if len(task_split) > 1:
-            task_queue = task_split[0]
-        task_pair = (task_split[1], task_queue)
-        h = Handler(task_pair[0], task_pair[1])
-        syncer.filter.append(h)
+    syncer = HeadSyncer(syncer_backend)
 
     try:
         logg.debug('block offset {} {}'.format(block_offset, c))
diff --git a/requirements.txt b/requirements.txt
index b2a8af7..6deff1c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,9 +1,8 @@
-websocket-client==0.57.0
 psycopg2==2.8.6
 SQLAlchemy==1.3.20
 py-evm==0.3.0a20
 eth-tester==0.5.0b3
-web3==5.12.2
 confini==0.3.6b2
 semver==2.13.0
 hexathon==0.0.1a2
+chainlib=0.0.1a4