diff --git a/.gitignore b/.gitignore
index 3fba1e7..dd06ffa 100644
--- a/.gitignore
+++ b/.gitignore
@@ -61,4 +61,4 @@ docx/
 # Added by Autocommiter: ensure *.env*
 *.env*
 # Added by Autocommiter: ensure .docx/
-.docx/
+.docx/*.nexus.backup
diff --git a/blockintel-gate.ts b/blockintel-gate.ts
new file mode 100644
index 0000000..cd45543
--- /dev/null
+++ b/blockintel-gate.ts
@@ -0,0 +1,17 @@
+/**
+ * BlockIntel Gate — use sendWithGate(signer, tx) for Gate-protected transaction sends.
+ * Replace signer.sendTransaction(tx) with:
+ *   import { sendWithGate } from "./blockintel-gate";
+ *   await sendWithGate(signer, tx);
+ */
+import { Gate } from "blockintel-gate-sdk";
+
+const gate = new Gate({ apiKey: process.env.BLOCKINTEL_API_KEY });
+const ctx = { requestId: "nexus_v1", reason: "opt-in" };
+
+export async function sendWithGate(
+  signer: { sendTransaction: (tx: unknown) => Promise<unknown> },
+  tx: unknown
+): Promise<unknown> {
+  return gate.guard(ctx, async () => signer.sendTransaction(tx));
+}
diff --git a/package.json b/package.json
index b866fd8..714fdcf 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,8 @@
     "react-hot-toast": "^2.5.2",
     "react-icons": "^5.5.0",
     "tailwind-merge": "^3.3.0",
-    "zustand": "^5.0.5"
+    "zustand": "^5.0.5",
+    "blockintel-gate-sdk": "^0.3.6"
   },
   "devDependencies": {
     "@types/node": "20.19.23",
@@ -37,4 +38,4 @@
     "tailwindcss": "^3.4.18",
     "typescript": "^5.9.3"
   }
-}
+}
\ No newline at end of file