diff --git a/main.py b/main.py
index 0ecf2a2..7c66a0d 100644
--- a/main.py
+++ b/main.py
@@ -2211,8 +2211,9 @@ async def fastapi_get_pipe_risk_probability(network: str, pipe_id: str) -> dict[
     return get_pipe_risk_probability(network, pipe_id)
 
 @app.get('/getpipesriskprobability/')
-async def fastapi_get_pipes_risk_probability(network: str, pipe_ids: list[str]) -> list[dict[str, Any]]:
-    return get_pipes_risk_probability(network, pipe_ids)
+async def fastapi_get_pipes_risk_probability(network: str, pipe_ids: str) -> list[dict[str, Any]]:
+    pipeids = pipe_ids.split(',')
+    return get_pipes_risk_probability(network, pipeids)
 
 @app.get('/getnetworkpiperiskprobabilitynow/')
 async def fastapi_get_network_pipe_risk_probability_now(network: str) -> list[dict[str, Any]]: