diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index f2dc99a..c343ebb 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -22,16 +22,28 @@ jobs:
       - name: Setup environment & install dependencies
         run: make setup
 
+      - name: Run unit tests
+        run: make test
+
+      - name: Install wick
+        run: sudo snap install wick --classic
+
+      - name: Run Integration tests
+        run: |
+          make install-nxt
+          nxt start -c tests/ &
+          timeout 30 bash -c 'until wick --url ws://localhost:8079/ws publish test; do sleep 1; done'
+          make integration
+
       - name: Setup AAT
         run: |
           git clone https://github.com/xconnio/xconn-aat-setup.git
           cd xconn-aat-setup
           make up
-          sudo snap install wick --classic
           timeout 30 bash -c 'until wick --url ws://localhost:8081/ws publish test; do sleep 1; done'
 
-      - name: Run tests
-        run: make test
+      - name: Run AAT tests
+        run: make aat
 
   ruff:
     runs-on: ubuntu-latest
diff --git a/Makefile b/Makefile
index 30e1e06..b5ea7d4 100644
--- a/Makefile
+++ b/Makefile
@@ -17,7 +17,7 @@ lint:
 	./.venv/bin/ruff check .
 
 test:
-	./.venv/bin/pytest -s -v
+	./.venv/bin/pytest -s -v tests/unit
 
 run:
 	./.venv/bin/xconn example:app --directory examples/simple
@@ -37,3 +37,16 @@ build-docs:
 
 clean-docs:
 	rm -rf site/
+
+install-nxt:
+	@if ! command -v nxt >/dev/null 2>&1; then \
+  		sudo snap install nxt-router --classic --edge; \
+  	fi
+
+
+integration:
+	make install-nxt
+	./.venv/bin/pytest -s -v tests/integration/
+
+aat:
+	./.venv/bin/pytest -s -v tests/aat/
diff --git a/tests/.nxt/config.yaml b/tests/.nxt/config.yaml
new file mode 100644
index 0000000..9670b52
--- /dev/null
+++ b/tests/.nxt/config.yaml
@@ -0,0 +1,55 @@
+version: '1'
+
+config:
+  loglevel: debug
+  management: true
+
+realms:
+  - name: realm1
+    roles:
+      - name: anonymous
+        permissions:
+          - uri: ""
+            match: prefix
+            allow_call: true
+            allow_register: true
+            allow_publish: true
+            allow_subscribe: true
+
+transports:
+  - type: websocket
+    listener: tcp
+    address: localhost:8079
+    serializers:
+      - json
+      - cbor
+      - msgpack
+
+authenticators:
+  cryptosign:
+    - authid: john
+      realm: realm1
+      role: anonymous
+      authorized_keys:
+        - 20e6ff0eb2552204fac19a15a61da586e437abd64a545bedce61a89b48184fcb
+
+  wampcra:
+    - authid: john
+      realm: realm1
+      role: anonymous
+      secret: hello
+
+  ticket:
+    - authid: john
+      realm: realm1
+      role: anonymous
+      ticket: hello
+
+  anonymous:
+    - authid: john
+      realm: realm1
+      role: anonymous
+
+    - authid: john
+      realm: io.xconn.mgmt
+      role: anonymous
diff --git a/tests/aat/__init__.py b/tests/aat/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tests/client_test.py b/tests/aat/client_test.py
similarity index 100%
rename from tests/client_test.py
rename to tests/aat/client_test.py
diff --git a/tests/interop_test.py b/tests/aat/interop_test.py
similarity index 100%
rename from tests/interop_test.py
rename to tests/aat/interop_test.py
diff --git a/tests/integration/__init__.py b/tests/integration/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tests/integration/async_pubsub_test.py b/tests/integration/async_pubsub_test.py
new file mode 100644
index 0000000..eb54f63
--- /dev/null
+++ b/tests/integration/async_pubsub_test.py
@@ -0,0 +1,70 @@
+import os
+import asyncio
+import hashlib
+
+import pytest
+from wampproto import serializers
+
+from xconn import AsyncClient
+from xconn.types import Event
+from xconn.async_client import connect_anonymous
+
+
+async def test_pubsub():
+    client1 = await connect_anonymous("ws://localhost:8079/ws", "realm1")
+    client2 = await connect_anonymous("ws://localhost:8079/ws", "realm1")
+
+    args = ["client1", "client2"]
+
+    async def event_handler_with_args(event: Event):
+        assert event.args == args
+        assert event.kwargs is None
+
+    args_subscription = await client1.subscribe("io.xconn.pubsub.args", event_handler_with_args)
+    await client2.publish("io.xconn.pubsub.args", args, options={"acknowledge": True})
+    await args_subscription.unsubscribe()
+
+    kwargs = {"foo": "bar", "baz": {"k": "v"}}
+
+    async def event_handler_with_kwargs(event: Event):
+        assert event.args == []
+        assert event.kwargs == kwargs
+
+    subscription = await client1.subscribe("io.xconn.pubsub.kwargs", event_handler_with_kwargs)
+    await client2.publish("io.xconn.pubsub.kwargs", kwargs=kwargs, options={"acknowledge": True})
+
+    await subscription.unsubscribe()
+
+    await client2.leave()
+    await client1.leave()
+
+
+@pytest.mark.parametrize("serializer", [serializers.CBORSerializer(), serializers.MsgPackSerializer()])
+async def test_pubsub_with_various_data(serializer: serializers.Serializer):
+    async_client = AsyncClient(serializer=serializer)
+    client1 = await async_client.connect("ws://localhost:8079/ws", "realm1")
+    async_client2 = AsyncClient(serializer=serializer)
+    client2 = await async_client2.connect("ws://localhost:8079/ws", "realm1")
+
+    async def event_handler(inv: Event):
+        payload: bytes = inv.kwargs["payload"]
+        checksum: bytes = inv.kwargs["checksum"]
+
+        calculated_checksum = hashlib.sha256(payload).digest()
+        assert calculated_checksum == checksum, f"Checksum mismatch! got {calculated_checksum}, expected {checksum}"
+
+    await client1.subscribe("io.xconn.pubsub.event_handler", event_handler)
+
+    async def send_payload(size_bytes: int):
+        payload = os.urandom(size_bytes)
+        checksum = hashlib.sha256(payload).digest()
+
+        await client2.publish("io.xconn.pubsub.event_handler", kwargs={"payload": payload, "checksum": checksum})
+
+    # test call with different payload sizes
+    sizes = [1024 * n for n in [1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1023]]
+
+    await asyncio.gather(*(send_payload(size) for size in sizes))
+
+    await client1.leave()
+    await client2.leave()
diff --git a/tests/integration/async_rpc_test.py b/tests/integration/async_rpc_test.py
new file mode 100644
index 0000000..570867c
--- /dev/null
+++ b/tests/integration/async_rpc_test.py
@@ -0,0 +1,76 @@
+import os
+import asyncio
+import hashlib
+
+import pytest
+from wampproto import serializers
+
+from xconn import AsyncClient
+from xconn.types import Invocation
+from xconn.async_client import connect_anonymous
+from xconn.exception import ApplicationError
+
+
+async def test_rpc():
+    client1 = await connect_anonymous("ws://localhost:8079/ws", "realm1")
+    client2 = await connect_anonymous("ws://localhost:8079/ws", "realm1")
+
+    args = ["client1", "client2"]
+
+    async def inv_handler_with_args(inv: Invocation):
+        assert inv.args == args
+        assert inv.kwargs is None
+
+    args_registration = await client1.register("io.xconn.rpc.args", inv_handler_with_args)
+    await client2.call("io.xconn.rpc.args", args)
+    await args_registration.unregister()
+
+    with pytest.raises(ApplicationError, match="wamp.error.no_such_procedure"):
+        await client2.call("io.xconn.rpc.args", args)
+
+    kwargs = {"foo": "bar", "baz": {"k": "v"}}
+
+    async def inv_handler_with_kwargs(inv: Invocation):
+        assert inv.args == []
+        assert inv.kwargs == kwargs
+
+    registration = await client1.register("io.xconn.rpc.kwargs", inv_handler_with_kwargs)
+    await client2.call("io.xconn.rpc.kwargs", kwargs=kwargs)
+
+    await registration.unregister()
+
+    await client2.leave()
+    await client1.leave()
+
+
+@pytest.mark.parametrize(
+    "serializer", [serializers.CBORSerializer(), serializers.MsgPackSerializer()]
+)
+async def test_rpc_with_various_data(serializer: serializers.Serializer):
+    async_client = AsyncClient(serializer=serializer)
+    client1 = await async_client.connect("ws://localhost:8079/ws", "realm1")
+    async_client2 = AsyncClient(serializer=serializer)
+    client2 = await async_client2.connect("ws://localhost:8079/ws", "realm1")
+
+    async def inv_handler(inv: Invocation):
+        payload: bytes = inv.kwargs["payload"]
+        checksum: bytes = inv.kwargs["checksum"]
+
+        calculated_checksum = hashlib.sha256(payload).digest()
+        assert calculated_checksum == checksum, f"Checksum mismatch! got {calculated_checksum}, expected {checksum}"
+
+    await client1.register("io.xconn.rpc.inv_handler", inv_handler)
+
+    async def send_payload(size_bytes: int):
+        payload = os.urandom(size_bytes)
+        checksum = hashlib.sha256(payload).digest()
+
+        await client2.call("io.xconn.rpc.inv_handler", kwargs={"payload": payload, "checksum": checksum})
+
+    # test call with different payload sizes
+    sizes = [1024 * n for n in [1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1023]]
+
+    await asyncio.gather(*(send_payload(size) for size in sizes))
+
+    await client1.leave()
+    await client2.leave()
diff --git a/tests/integration/pubsub_test.py b/tests/integration/pubsub_test.py
new file mode 100644
index 0000000..045336c
--- /dev/null
+++ b/tests/integration/pubsub_test.py
@@ -0,0 +1,73 @@
+import concurrent
+import os
+import hashlib
+from concurrent.futures import ThreadPoolExecutor
+
+import pytest
+from wampproto import serializers
+
+from xconn import Client
+from xconn.types import Event
+from xconn.client import connect_anonymous
+
+
+def test_pubsub():
+    client1 = connect_anonymous("ws://localhost:8079/ws", "realm1")
+    client2 = connect_anonymous("ws://localhost:8079/ws", "realm1")
+
+    args = ["client1", "client2"]
+
+    def event_handler_with_args(event: Event):
+        assert event.args == args
+        assert event.kwargs is None
+
+    args_subscription = client1.subscribe("io.xconn.pubsub.args", event_handler_with_args)
+    client2.publish("io.xconn.pubsub.args", args, options={"acknowledge": True})
+    args_subscription.unsubscribe()
+
+    kwargs = {"foo": "bar", "baz": {"k": "v"}}
+
+    def event_handler_with_kwargs(event: Event):
+        assert event.args == []
+        assert event.kwargs == kwargs
+
+    registration = client1.subscribe("io.xconn.pubsub.kwargs", event_handler_with_kwargs)
+    client2.publish("io.xconn.pubsub.kwargs", kwargs=kwargs, options={"acknowledge": True})
+
+    registration.unsubscribe()
+
+    client2.leave()
+    client1.leave()
+
+
+@pytest.mark.parametrize("serializer", [serializers.CBORSerializer(), serializers.MsgPackSerializer()])
+def test_pubsub_with_various_data(serializer: serializers.Serializer):
+    client1 = Client(serializer=serializer).connect("ws://localhost:8079/ws", "realm1")
+    client2 = Client(serializer=serializer).connect("ws://localhost:8079/ws", "realm1")
+
+    def event_handler(inv: Event):
+        payload: bytes = inv.kwargs["payload"]
+        checksum: bytes = inv.kwargs["checksum"]
+
+        calculated_checksum = hashlib.sha256(payload).digest()
+        assert calculated_checksum == checksum, f"Checksum mismatch! got {calculated_checksum}, expected {checksum}"
+
+    client1.subscribe("io.xconn.pubsub.event_handler", event_handler)
+
+    def send_payload(size_bytes: int):
+        payload = os.urandom(size_bytes)
+        checksum = hashlib.sha256(payload).digest()
+
+        client2.publish("io.xconn.pubsub.event_handler", kwargs={"payload": payload, "checksum": checksum})
+
+    # test call with different payload sizes
+    sizes = [1024 * n for n in [1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1023]]
+
+    with ThreadPoolExecutor(max_workers=8) as executor:
+        futures = [executor.submit(send_payload, size) for size in sizes]
+
+        for future in concurrent.futures.as_completed(futures):
+            future.result()
+
+    client1.leave()
+    client2.leave()
diff --git a/tests/integration/rpc_test.py b/tests/integration/rpc_test.py
new file mode 100644
index 0000000..8e5fb95
--- /dev/null
+++ b/tests/integration/rpc_test.py
@@ -0,0 +1,79 @@
+import concurrent
+import os
+import hashlib
+from concurrent.futures import ThreadPoolExecutor
+
+import pytest
+from wampproto import serializers
+
+from xconn import Client
+from xconn.types import Invocation
+from xconn.client import connect_anonymous
+from xconn.exception import ApplicationError
+
+
+def test_rpc():
+    client1 = connect_anonymous("ws://localhost:8079/ws", "realm1")
+    client2 = connect_anonymous("ws://localhost:8079/ws", "realm1")
+
+    args = ["client1", "client2"]
+
+    def inv_handler_with_args(inv: Invocation):
+        assert inv.args == args
+        assert inv.kwargs is None
+
+    args_registration = client1.register("io.xconn.rpc.args", inv_handler_with_args)
+    client2.call("io.xconn.rpc.args", args)
+    args_registration.unregister()
+
+    with pytest.raises(ApplicationError, match="wamp.error.no_such_procedure"):
+        client2.call("io.xconn.rpc.args", args)
+
+    kwargs = {"foo": "bar", "baz": {"k": "v"}}
+
+    def inv_handler_with_kwargs(inv: Invocation):
+        assert inv.args == []
+        assert inv.kwargs == kwargs
+
+    registration = client1.register("io.xconn.rpc.kwargs", inv_handler_with_kwargs)
+    client2.call("io.xconn.rpc.kwargs", kwargs=kwargs)
+
+    registration.unregister()
+
+    client2.leave()
+    client1.leave()
+
+
+@pytest.mark.parametrize(
+    "serializer", [serializers.CBORSerializer(), serializers.MsgPackSerializer()]
+)
+def test_rpc_with_various_data(serializer: serializers.Serializer):
+    client1 = Client(serializer=serializer).connect("ws://localhost:8079/ws", "realm1")
+    client2 = Client(serializer=serializer).connect("ws://localhost:8079/ws", "realm1")
+
+    def inv_handler(inv: Invocation):
+        payload: bytes = inv.kwargs["payload"]
+        checksum: bytes = inv.kwargs["checksum"]
+
+        calculated_checksum = hashlib.sha256(payload).digest()
+        assert calculated_checksum == checksum, f"Checksum mismatch! got {calculated_checksum}, expected {checksum}"
+
+    client1.register("io.xconn.rpc.inv_handler", inv_handler)
+
+    def send_payload(size_bytes: int):
+        payload = os.urandom(size_bytes)
+        checksum = hashlib.sha256(payload).digest()
+
+        client2.call("io.xconn.rpc.inv_handler", kwargs={"payload": payload, "checksum": checksum})
+
+    # test call with different payload sizes
+    sizes = [1024 * n for n in [1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1023]]
+
+    with ThreadPoolExecutor(max_workers=8) as executor:
+        futures = [executor.submit(send_payload, size) for size in sizes]
+
+        for future in concurrent.futures.as_completed(futures):
+            future.result()
+
+    client1.leave()
+    client2.leave()
diff --git a/tests/unit/__init__.py b/tests/unit/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tests/acceptor_test.py b/tests/unit/acceptor_test.py
similarity index 100%
rename from tests/acceptor_test.py
rename to tests/unit/acceptor_test.py
diff --git a/tests/router_test.py b/tests/unit/router_test.py
similarity index 100%
rename from tests/router_test.py
rename to tests/unit/router_test.py