diff --git a/docs/extras/modules/chains/additional/openapi_openai.ipynb b/docs/extras/modules/chains/additional/openapi_openai.ipynb
index 90bdf10015f..97ec9c7a147 100644
--- a/docs/extras/modules/chains/additional/openapi_openai.ipynb
+++ b/docs/extras/modules/chains/additional/openapi_openai.ipynb
@@ -20,18 +20,10 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 1,
+   "execution_count": null,
    "id": "08e19b64",
    "metadata": {},
-   "outputs": [
-    {
-     "name": "stderr",
-     "output_type": "stream",
-     "text": [
-      "Attempting to load an OpenAPI 3.0.1 spec.  This may result in degraded performance. Convert your OpenAPI spec to 3.1.* spec for better support.\n"
-     ]
-    }
-   ],
+   "outputs": [],
    "source": [
     "from langchain.chains.openai_functions.openapi import get_openapi_chain\n",
     "\n",
@@ -103,19 +95,10 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 6,
+   "execution_count": null,
    "id": "bf6cd695",
    "metadata": {},
-   "outputs": [
-    {
-     "name": "stderr",
-     "output_type": "stream",
-     "text": [
-      "Attempting to load an OpenAPI 3.0.1 spec.  This may result in degraded performance. Convert your OpenAPI spec to 3.1.* spec for better support.\n",
-      "Attempting to load an OpenAPI 3.0.1 spec.  This may result in degraded performance. Convert your OpenAPI spec to 3.1.* spec for better support.\n"
-     ]
-    }
-   ],
+   "outputs": [],
    "source": [
     "chain = get_openapi_chain(\"https://api.speak.com/openapi.yaml\")"
    ]
@@ -152,18 +135,10 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 8,
+   "execution_count": null,
    "id": "a9198f62",
    "metadata": {},
-   "outputs": [
-    {
-     "name": "stderr",
-     "output_type": "stream",
-     "text": [
-      "Attempting to load an OpenAPI 3.0.0 spec.  This may result in degraded performance. Convert your OpenAPI spec to 3.1.* spec for better support.\n"
-     ]
-    }
-   ],
+   "outputs": [],
    "source": [
     "chain = get_openapi_chain(\"https://gist.githubusercontent.com/roaldnefs/053e505b2b7a807290908fe9aa3e1f00/raw/0a212622ebfef501163f91e23803552411ed00e4/openapi.yaml\")"
    ]
diff --git a/langchain/chains/openai_functions/openapi.py b/langchain/chains/openai_functions/openapi.py
index 63ae84f00e3..57574ab6a5f 100644
--- a/langchain/chains/openai_functions/openapi.py
+++ b/langchain/chains/openai_functions/openapi.py
@@ -207,6 +207,15 @@ def get_openapi_chain(
     prompt: Optional[BasePromptTemplate] = None,
     request_chain: Optional[Chain] = None,
 ) -> SequentialChain:
+    """Create a chain for querying an API from a OpenAPI spec.
+
+    Args:
+        spec: OpenAPISpec or url/file/text string corresponding to one.
+        llm: language model, should be an OpenAI function-calling model, e.g.
+            `ChatOpenAI(model="gpt-3.5-turbo-0613")`.
+        prompt: Main prompt template to use.
+        request_chain: Chain for taking the functions output and executing the request.
+    """
     if isinstance(spec, str):
         for conversion in (
             OpenAPISpec.from_url,