diff --git a/docs/tools/web-fetch.md b/docs/tools/web-fetch.md
index 3c58d7aea..248d88def 100644
--- a/docs/tools/web-fetch.md
+++ b/docs/tools/web-fetch.md
@@ -52,3 +52,4 @@ web_fetch(url="https://github.com/google/gemini-react/blob/main/README.md", prom
 - **Content processing:** The tool fetches content directly and processes it using an AI model, converting HTML to readable text format.
 - **Output quality:** The quality of the output will depend on the clarity of the instructions in the prompt.
 - **MCP tools:** If an MCP-provided web fetch tool is available (starting with "mcp\_\_"), prefer using that tool as it may have fewer restrictions.
+- **Proxy support:** The tool will use a configured proxy if available. Additionally, when `GEMINI_SANDBOX_PROXY_COMMAND` is set, the tool will automatically use the sandbox proxy which listens on `http://localhost:8877`.
diff --git a/packages/core/src/tools/web-fetch.ts b/packages/core/src/tools/web-fetch.ts
index 60a97268f..9b7c2053c 100644
--- a/packages/core/src/tools/web-fetch.ts
+++ b/packages/core/src/tools/web-fetch.ts
@@ -204,9 +204,16 @@ export class WebFetchTool extends BaseDeclarativeTool<
         type: 'object',
       },
     );
+    
+    // Use the configured proxy if available
     const proxy = config.getProxy();
     if (proxy) {
       setGlobalDispatcher(new ProxyAgent(proxy as string));
+    } 
+    // If no configured proxy, check if sandbox proxy is set via GEMINI_SANDBOX_PROXY_COMMAND
+    else if (process.env['GEMINI_SANDBOX_PROXY_COMMAND']) {
+      // When GEMINI_SANDBOX_PROXY_COMMAND is set, the proxy listens on localhost:8877
+      setGlobalDispatcher(new ProxyAgent('http://localhost:8877'));
     }
   }