diff --git a/vercel-build.sh b/vercel-build.sh
new file mode 100644
index 000000000..3bd6c4e45
--- /dev/null
+++ b/vercel-build.sh
@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+if ! command -v bun >/dev/null 2>&1; then
+  echo "Bun not found — installing..."
+  curl -fsSL https://bun.sh/install | bash
+  export PATH="$HOME/.bun/bin:$PATH"
+else
+  echo "Bun found: $(bun --version || true)"
+fi
+
+echo "Installing dependencies..."
+bun install
+
+echo "Running build..."
+if [ -n "${VERCEL_BUILD_COMMAND:-}" ]; then
+  eval "$VERCEL_BUILD_COMMAND"
+else
+  bun run build
+fi
diff --git a/vercel.json b/vercel.json
index 5565e540b..61dc63b23 100644
--- a/vercel.json
+++ b/vercel.json
@@ -1,14 +1,5 @@
 {
   "version": 2,
-  "builds": [
-    {
-      "src": "mcp-server/api/index.ts",
-      "use": "@vercel/node",
-      "config": {
-        "includeFiles": ["src/**", "mcp-server/src/**", "mcp-server/dist/**", "README.md"]
-      }
-    }
-  ],
   "routes": [
     { "src": "/health", "dest": "mcp-server/api/index.ts" },
     { "src": "/mcp", "dest": "mcp-server/api/index.ts" },