diff --git a/langchain/chains/api/base.py b/langchain/chains/api/base.py
index e5af03a0..7e199fe4 100644
--- a/langchain/chains/api/base.py
+++ b/langchain/chains/api/base.py
@@ -78,6 +78,7 @@ class APIChain(Chain):
             callbacks=_run_manager.get_child(),
         )
         _run_manager.on_text(api_url, color="green", end="\n", verbose=self.verbose)
+        api_url = api_url.strip()
         api_response = self.requests_wrapper.get(api_url)
         _run_manager.on_text(
             api_response, color="yellow", end="\n", verbose=self.verbose
@@ -106,6 +107,7 @@ class APIChain(Chain):
         await _run_manager.on_text(
             api_url, color="green", end="\n", verbose=self.verbose
         )
+        api_url = api_url.strip()
         api_response = await self.requests_wrapper.aget(api_url)
         await _run_manager.on_text(
             api_response, color="yellow", end="\n", verbose=self.verbose