diff --git a/src/evidently/collector/app.py b/src/evidently/collector/app.py
index 49e44847e9..5b1288e0b6 100644
--- a/src/evidently/collector/app.py
+++ b/src/evidently/collector/app.py
@@ -4,6 +4,7 @@
 from typing import AsyncGenerator
 from typing import Dict
 from typing import List
+from typing import Optional
 
 import pandas as pd
 import uvicorn
@@ -148,7 +149,7 @@ async def create_snapshot(collector: CollectorConfig, storage: CollectorStorage)
         storage.log(collector.id, LogEvent(ok=True))
 
 
-def run(host: str = "0.0.0.0", port: int = 8001, config_path: str = CONFIG_PATH, secret: str = None):
+def create_app(config_path: str = CONFIG_PATH, secret: Optional[str] = None) -> Litestar:
     service = CollectorServiceConfig.load_or_default(config_path)
     service.storage.init_all(service)
 
@@ -205,7 +206,7 @@ async def check_service_snapshots_periodically():
             stop_event.set()
             await task
 
-    app = Litestar(
+    return Litestar(
         route_handlers=[
             create_collector,
             get_collector,
@@ -222,12 +223,12 @@ async def check_service_snapshots_periodically():
         guards=[is_authenticated],
         lifespan=[check_snapshots_factory_lifespan],
     )
-    uvicorn.run(app, host=host, port=port)
 
 
-def main():
-    run()
+def run(host: str = "0.0.0.0", port: int = 8001, config_path: str = CONFIG_PATH, secret: Optional[str] = None):
+    app = create_app(config_path, secret)
+    uvicorn.run(app, host=host, port=port)
 
 
 if __name__ == "__main__":
-    main()
+    run()
diff --git a/tests/collector/test_app.py b/tests/collector/test_app.py
new file mode 100644
index 0000000000..1e05618912
--- /dev/null
+++ b/tests/collector/test_app.py
@@ -0,0 +1,98 @@
+import socket
+import time
+from multiprocessing import Process
+from typing import Optional
+
+import pandas as pd
+import pytest
+
+from evidently.collector.app import run
+from evidently.collector.client import CollectorClient
+from evidently.collector.config import CollectorConfig
+from evidently.collector.config import IntervalTrigger
+from evidently.collector.config import ReportConfig
+from evidently.test_suite import TestSuite
+from evidently.tests import TestNumberOfOutRangeValues
+
+COLLECTOR_ID = "1"
+PROJECT_ID = "2"
+
+HOST = "localhost"
+PORT = 8080
+BASE_URL = f"http://{HOST}:{PORT}"
+
+
+def create_test_data() -> pd.DataFrame:
+    return pd.DataFrame([{"values1": 5.0, "values2": 0.0}])
+
+
+def create_test_suite() -> TestSuite:
+    return TestSuite(tests=[TestNumberOfOutRangeValues("values1", left=5)], tags=["quality"])
+
+
+def create_report_config(
+    current_data: pd.DataFrame,
+    test_suite: TestSuite,
+    references: Optional[pd.DataFrame] = None,
+):
+    test_suite.run(reference_data=references, current_data=current_data)
+    return ReportConfig.from_test_suite(test_suite)
+
+
+def create_collector_config(data: pd.DataFrame, test_suite: TestSuite) -> CollectorConfig:
+    return CollectorConfig(
+        trigger=IntervalTrigger(interval=1),
+        report_config=create_report_config(current_data=data, test_suite=test_suite),
+        project_id=PROJECT_ID,
+    )
+
+
+def create_collector_client(base_url: str = BASE_URL) -> CollectorClient:
+    return CollectorClient(base_url=base_url)
+
+
+def wait_server_start(host: str = HOST, port: int = PORT, timeout: float = 10.0, check_interval: float = 0.01) -> None:
+    start_time = time.time()
+    while time.time() - start_time < timeout:
+        time.sleep(check_interval)
+        with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
+            try:
+                s.connect((host, port))
+            except ConnectionRefusedError:
+                continue
+            return
+    raise TimeoutError()
+
+
+@pytest.fixture
+def server() -> None:
+    proc = Process(target=run, args=(HOST, PORT), daemon=True)
+    proc.start()
+    wait_server_start()
+    try:
+        yield
+    except Exception as e:
+        proc.kill()
+        raise e
+
+
+def test_create_collector_handler_work_with_collector_client(server: None):
+    collector_config = create_collector_config(create_test_data(), create_test_suite())
+    client = create_collector_client()
+    resp = client.create_collector(COLLECTOR_ID, collector_config)
+    assert resp["id"] == COLLECTOR_ID
+    assert resp["project_id"] == PROJECT_ID
+
+
+def test_data_handler_work_with_collector_client(server: None):
+    collector_config = create_collector_config(create_test_data(), create_test_suite())
+    client = create_collector_client()
+    client.create_collector(COLLECTOR_ID, collector_config)
+    client.send_data(COLLECTOR_ID, create_test_data())
+
+
+def test_references_handler_work_with_collector_client(server: None):
+    collector_config = create_collector_config(create_test_data(), create_test_suite())
+    client = create_collector_client()
+    client.create_collector(COLLECTOR_ID, collector_config)
+    client.set_reference(COLLECTOR_ID, create_test_data())