diff --git a/docs/ecosystem/serpapi.md b/docs/ecosystem/serpapi.md
index b71be11e..c506da11 100644
--- a/docs/ecosystem/serpapi.md
+++ b/docs/ecosystem/serpapi.md
@@ -6,6 +6,7 @@ It is broken into two parts: installation and setup, and then references to the
 ## Installation and Setup
 - Install requirements with `pip install google-search-results`
 - Get a SerpAPI api key and either set it as an environment variable (`SERPAPI_API_KEY`)
+- Optional, if you are using a proxy, set environment variable (`SERPAPI_BASE_URL`) or pass it to the LLM constructor to your proxy url.
 
 ## Wrappers
 
diff --git a/docs/reference/integrations.md b/docs/reference/integrations.md
index 8e57ee69..ca5ab208 100644
--- a/docs/reference/integrations.md
+++ b/docs/reference/integrations.md
@@ -30,6 +30,7 @@ The following use cases require specific installs and api keys:
 - _SerpAPI_:
   - Install requirements with `pip install google-search-results`
   - Get a SerpAPI api key and either set it as an environment variable (`SERPAPI_API_KEY`) or pass it to the LLM constructor as `serpapi_api_key`.
+  - Optional, if you are using a proxy, set environment variable (`SERPAPI_BASE_URL`) or pass it to the LLM constructor to your proxy url.
 - _GoogleSearchAPI_:
   - Install requirements with `pip install google-api-python-client`
   - Get a Google api key and either set it as an environment variable (`GOOGLE_API_KEY`) or pass it to the LLM constructor as `google_api_key`. You will also need to set the `GOOGLE_CSE_ID` environment variable to your custom search engine id. You can pass it to the LLM constructor as `google_cse_id` as well.
diff --git a/langchain/agents/load_tools.py b/langchain/agents/load_tools.py
index 13427d19..1eb63106 100644
--- a/langchain/agents/load_tools.py
+++ b/langchain/agents/load_tools.py
@@ -285,7 +285,10 @@ _EXTRA_OPTIONAL_TOOLS: Dict[str, Tuple[Callable[[KwArg(Any)], BaseTool], List[st
         _get_google_serper_results_json,
         ["serper_api_key", "aiosession"],
     ),
-    "serpapi": (_get_serpapi, ["serpapi_api_key", "aiosession"]),
+    "serpapi": (
+        _get_serpapi,
+        ["serpapi_api_key", "serpapi_base_url", "aiosession"],
+    ),
     "searx-search": (_get_searx_search, ["searx_host", "engines", "aiosession"]),
     "wikipedia": (_get_wikipedia, ["top_k_results", "lang"]),
     "arxiv": (
diff --git a/langchain/utilities/serpapi.py b/langchain/utilities/serpapi.py
index 65042264..7f051a4d 100644
--- a/langchain/utilities/serpapi.py
+++ b/langchain/utilities/serpapi.py
@@ -30,8 +30,9 @@ class SerpAPIWrapper(BaseModel):
     """Wrapper around SerpAPI.
 
     To use, you should have the ``google-search-results`` python package installed,
-    and the environment variable ``SERPAPI_API_KEY`` set with your API key, or pass
-    `serpapi_api_key` as a named parameter to the constructor.
+    and the environment variable ``SERPAPI_API_KEY``, ``SERPAPI_BASE_URL``
+    set with your API key, or pass `serpapi_api_key`, `serpapi_base_url`
+    as a named parameter to the constructor.
 
     Example:
         .. code-block:: python
@@ -50,6 +51,7 @@ class SerpAPIWrapper(BaseModel):
         }
     )
     serpapi_api_key: Optional[str] = None
+    serpapi_base_url: Optional[str] = None
     aiosession: Optional[aiohttp.ClientSession] = None
 
     class Config:
@@ -60,11 +62,20 @@ class SerpAPIWrapper(BaseModel):
 
     @root_validator()
     def validate_environment(cls, values: Dict) -> Dict:
-        """Validate that api key and python package exists in environment."""
+        """Validate that api key, base url, and python package exists in environment."""
         serpapi_api_key = get_from_dict_or_env(
             values, "serpapi_api_key", "SERPAPI_API_KEY"
         )
         values["serpapi_api_key"] = serpapi_api_key
+
+        serpapi_base_url = get_from_dict_or_env(
+            values,
+            "serpapi_base_url",
+            "SERPAPI_BASE_URL",
+            default="https://serpapi.com/search",
+        )
+        values["serpapi_base_url"] = serpapi_base_url
+
         try:
             from serpapi import GoogleSearch
 
@@ -100,8 +111,9 @@ class SerpAPIWrapper(BaseModel):
             params["source"] = "python"
             if self.serpapi_api_key:
                 params["serp_api_key"] = self.serpapi_api_key
+            if self.serpapi_base_url:
+                params["serp_api_base_url"] = self.serpapi_base_url
             params["output"] = "json"
-            url = "https://serpapi.com/search"
             return url, params
 
         url, params = construct_url_and_params()
@@ -119,6 +131,7 @@ class SerpAPIWrapper(BaseModel):
         """Get parameters for SerpAPI."""
         _params = {
             "api_key": self.serpapi_api_key,
+            "api_base_url": self.serpapi_base_url,
             "q": query,
         }
         params = {**self.params, **_params}