diff --git a/piker/brokers/_util.py b/piker/brokers/_util.py
index b2183a95..5c974c06 100644
--- a/piker/brokers/_util.py
+++ b/piker/brokers/_util.py
@@ -28,6 +28,9 @@ import json
 import httpx
 import logging
 from msgspec import Struct
+from tractor._exceptions import (
+    reg_err_types,
+)
 
 from piker.log import (
     colorize_json,
@@ -107,6 +110,13 @@ class SchemaMismatch(BrokerError):
 
     '''
 
+# auto-register all `BrokerError` subtypes for
+# tractor IPC exc-marshalling.
+reg_err_types([
+    BrokerError,
+    *BrokerError.__subclasses__(),
+])
+
 
 def resproc(
     resp: httpx.Response,
diff --git a/piker/brokers/kraken/api.py b/piker/brokers/kraken/api.py
index b360ef04..fbf9d6a9 100644
--- a/piker/brokers/kraken/api.py
+++ b/piker/brokers/kraken/api.py
@@ -118,6 +118,9 @@ class InvalidKey(ValueError):
 
     '''
 
+from tractor._exceptions import reg_err_types
+reg_err_types([InvalidKey])
+
 
 class Client:
 
diff --git a/piker/brokers/kraken/broker.py b/piker/brokers/kraken/broker.py
index c2bdada4..303a923e 100644
--- a/piker/brokers/kraken/broker.py
+++ b/piker/brokers/kraken/broker.py
@@ -97,6 +97,9 @@ MsgUnion = Union[
 class TooFastEdit(Exception):
     'Edit requests faster then api submissions'
 
+from tractor._exceptions import reg_err_types
+reg_err_types([TooFastEdit])
+
 
 # TODO: make this wrap the `Client` and `ws` instances
 # and give it methods to submit cancel vs. add vs. edit
diff --git a/piker/brokers/kraken/symbols.py b/piker/brokers/kraken/symbols.py
index 34756008..2f290271 100644
--- a/piker/brokers/kraken/symbols.py
+++ b/piker/brokers/kraken/symbols.py
@@ -90,7 +90,7 @@ class Pair(Struct):
     long_position_limit: float = float('inf')
 
     # TODO, add API note when this was added!
-    # execution_venue: str|None = None
+    execution_venue: str|None = None
 
     # TODO: should we make this a literal NamespacePath ref?
     ns_path: str = 'piker.brokers.kraken:Pair'
diff --git a/piker/brokers/questrade.py b/piker/brokers/questrade.py
index 69c888cb..5535af3f 100644
--- a/piker/brokers/questrade.py
+++ b/piker/brokers/questrade.py
@@ -95,6 +95,9 @@ _time_frames = {
 class QuestradeError(Exception):
     "Non-200 OK response code"
 
+from tractor._exceptions import reg_err_types
+reg_err_types([QuestradeError])
+
 
 class ContractsKey(NamedTuple):
     symbol: str
diff --git a/piker/config.py b/piker/config.py
index bcdf8121..80d094f2 100644
--- a/piker/config.py
+++ b/piker/config.py
@@ -36,6 +36,7 @@ except ModuleNotFoundError:
     import tomli as tomllib
 
 
+from tractor._exceptions import reg_err_types
 from .log import get_logger
 
 log = get_logger('broker-config')
@@ -172,6 +173,12 @@ class ConfigurationError(Exception):
 class NoSignature(ConfigurationError):
     'No credentials setup for broker backend!'
 
+# auto-register for tractor IPC exc-marshalling.
+reg_err_types([
+    ConfigurationError,
+    *ConfigurationError.__subclasses__(),
+])
+
 
 def _override_config_dir(
     path: str
diff --git a/piker/data/validate.py b/piker/data/validate.py
index c5317ede..fc82c799 100644
--- a/piker/data/validate.py
+++ b/piker/data/validate.py
@@ -34,6 +34,7 @@ from piker.accounting import (
     Asset,
     MktPair,
 )
+from tractor._exceptions import reg_err_types
 from ._util import log
 
 
@@ -43,6 +44,8 @@ class FeedInitializationError(ValueError):
 
     '''
 
+reg_err_types([FeedInitializationError])
+
 
 class FeedInit(Struct, frozen=True):
     '''
diff --git a/piker/service/_ahab.py b/piker/service/_ahab.py
index 94b18c9d..1e87c445 100644
--- a/piker/service/_ahab.py
+++ b/piker/service/_ahab.py
@@ -49,6 +49,7 @@ from requests.exceptions import (
     ReadTimeout,
 )
 
+from tractor._exceptions import reg_err_types
 from piker.log import (
     get_console_log,
     get_logger,
@@ -66,6 +67,11 @@ class DockerNotStarted(Exception):
 class ApplicationLogError(Exception):
     'App in container reported an error in logs'
 
+reg_err_types([
+    DockerNotStarted,
+    ApplicationLogError,
+])
+
 
 @acm
 async def open_docker(
diff --git a/piker/service/marketstore.py b/piker/service/marketstore.py
index 9cfc7a13..c21a8bad 100644
--- a/piker/service/marketstore.py
+++ b/piker/service/marketstore.py
@@ -382,6 +382,9 @@ def quote_to_marketstore_structarray(
 class MarketStoreError(Exception):
     "Generic marketstore client error"
 
+from tractor._exceptions import reg_err_types
+reg_err_types([MarketStoreError])
+
 
 # def err_on_resp(response: dict) -> None:
 #     """Raise any errors found in responses from client request.
diff --git a/piker/storage/__init__.py b/piker/storage/__init__.py
index 361eaadc..90d1f80c 100644
--- a/piker/storage/__init__.py
+++ b/piker/storage/__init__.py
@@ -151,6 +151,13 @@ class StorageConnectionError(ConnectionError):
 
     '''
 
+from tractor._exceptions import reg_err_types
+reg_err_types([
+    TimeseriesNotFound,
+    StorageConnectionError,
+])
+
+
 def get_storagemod(
     name: str,