diff --git a/client/lib/builder.ts b/client/lib/builder.ts
new file mode 100644
index 00000000..622cd030
--- /dev/null
+++ b/client/lib/builder.ts
@@ -0,0 +1,37 @@
+const API_ROOT = "https://cdn.builder.io/api/v3";
+
+export type BuilderResult<T = any> = {
+  results: Array<{
+    id: string;
+    name?: string;
+    data?: T & { slug?: string; image?: string; category?: string; author?: string; date?: string; excerpt?: string; readTime?: string };
+    url?: string;
+    published?: string;
+  }>;
+};
+
+export function getBuilderApiKey() {
+  return import.meta.env.VITE_BUILDER_API_KEY;
+}
+
+export async function fetchBuilderList<T = any>(model: string, opts: { limit?: number; query?: Record<string, any>; fields?: string } = {}) {
+  const apiKey = getBuilderApiKey();
+  if (!apiKey) throw new Error("Missing VITE_BUILDER_API_KEY");
+  const params = new URLSearchParams({ apiKey });
+  if (opts.limit) params.set("limit", String(opts.limit));
+  if (opts.fields) params.set("fields", opts.fields);
+  if (opts.query) params.set("query", JSON.stringify(opts.query));
+  const res = await fetch(`${API_ROOT}/content/${encodeURIComponent(model)}?${params.toString()}`);
+  if (!res.ok) throw new Error(`Builder fetch failed: ${res.status}`);
+  return (await res.json()) as BuilderResult<T>;
+}
+
+export async function fetchBuilderOne<T = any>(model: string, slug: string) {
+  const apiKey = getBuilderApiKey();
+  if (!apiKey) throw new Error("Missing VITE_BUILDER_API_KEY");
+  const params = new URLSearchParams({ apiKey, limit: "1", query: JSON.stringify({ "data.slug": slug }) });
+  const res = await fetch(`${API_ROOT}/content/${encodeURIComponent(model)}?${params.toString()}`);
+  if (!res.ok) throw new Error(`Builder fetch failed: ${res.status}`);
+  const json = (await res.json()) as BuilderResult<T>;
+  return json.results?.[0] || null;
+}