diff --git a/packages/opencode/src/tool/websearch.ts b/packages/opencode/src/tool/websearch.ts
index bf16428dfb3..2a71185e9cd 100644
--- a/packages/opencode/src/tool/websearch.ts
+++ b/packages/opencode/src/tool/websearch.ts
@@ -6,10 +6,10 @@ import { abortAfterAny } from "../util/abort"
 const API_CONFIG = {
   BASE_URL: "https://mcp.exa.ai",
   ENDPOINTS: {
-    SEARCH: "/mcp",
+    SEARCH: process.env.EXA_API_KEY ? `/mcp?exaApiKey=${process.env.EXA_API_KEY}` : "/mcp",
   },
   DEFAULT_NUM_RESULTS: 8,
-} as const
+}
 
 interface McpSearchRequest {
   jsonrpc: string