diff --git a/ops_bot/main.py b/ops_bot/main.py
index 2d8e6be..ea3045c 100644
--- a/ops_bot/main.py
+++ b/ops_bot/main.py
@@ -7,6 +7,7 @@ from typing import Any, AsyncIterator, Dict, List, Optional, Protocol, Tuple, ca
 
 import json_logging
 import uvicorn
+from prometheus_fastapi_instrumentator import Instrumentator
 from fastapi import Depends, FastAPI, HTTPException, Request, status
 from fastapi.security import (
     HTTPAuthorizationCredentials,
@@ -34,7 +35,7 @@ async def matrix_main(matrix_client: MatrixClient) -> None:
 
 @asynccontextmanager
 async def lifespan(app: FastAPI) -> AsyncIterator[None]:
-
+    instrumentator.expose(app)
     config_fname = os.environ.get("BOT_CONFIG_FILE", "config.yaml")
     bot_settings = load_config(config_fname)
     c = MatrixClient(settings=bot_settings.matrix, join_rooms=bot_settings.get_rooms())
@@ -46,6 +47,7 @@ async def lifespan(app: FastAPI) -> AsyncIterator[None]:
 
 
 app = FastAPI(lifespan=lifespan)
+instrumentator = Instrumentator().instrument(app)
 bearer_security = HTTPBearer(auto_error=False)
 basic_security = HTTPBasic(auto_error=False)
 
@@ -173,9 +175,9 @@ def start_dev() -> None:
     uvicorn.run("ops_bot.main:app", port=1111, host="127.0.0.1", reload=True)
 
 
-def start() -> None:
-    uvicorn.run("ops_bot.main:app", port=1111, host="0.0.0.0")  # nosec B104
+def main() -> None:
+    uvicorn.run(app, port=1111, host="0.0.0.0")  # nosec B104
 
 
 if __name__ == "__main__":
-    start()
+    main()