diff --git a/src/lib/blog.test.ts b/src/lib/blog.test.ts
new file mode 100644
index 0000000..a74f6b5
--- /dev/null
+++ b/src/lib/blog.test.ts
@@ -0,0 +1,26 @@
+import { expect, test } from "bun:test";
+import { readdir, readFile } from "node:fs/promises";
+import { createServer } from "vite";
+
+test("the voice archive includes the complete source and URL of every blog post", async () => {
+	const vite = await createServer({ server: { middlewareMode: true }, appType: "custom" });
+	try {
+		const { GET } = await vite.ssrLoadModule("/src/pages/blog.json.ts");
+		const response: Response = GET();
+		expect(response.headers.get("content-type")).toContain("application/json");
+		const { posts } = await response.json();
+		const directory = new URL("../pages/blog/", import.meta.url);
+		const files = (await readdir(directory)).filter((file) => file.endsWith(".mdx")).sort();
+		expect(files.length).toBeGreaterThan(0);
+		expect(posts).toEqual(
+			await Promise.all(
+				files.map(async (file) => ({
+					url: `https://moq.dev/blog/${file.slice(0, -4)}`,
+					content: await readFile(new URL(file, directory), "utf8"),
+				})),
+			),
+		);
+	} finally {
+		await vite.close();
+	}
+});
diff --git a/src/pages/blog.json.ts b/src/pages/blog.json.ts
new file mode 100644
index 0000000..5cb5264
--- /dev/null
+++ b/src/pages/blog.json.ts
@@ -0,0 +1,17 @@
+// Built with the site so the voice agent gets every post from the same release.
+const posts = import.meta.glob<string>("./blog/*.mdx", {
+	eager: true,
+	query: "?raw",
+	import: "default",
+});
+
+export function GET() {
+	return Response.json({
+		posts: Object.entries(posts)
+			.sort(([a], [b]) => a.localeCompare(b))
+			.map(([path, content]) => ({
+				url: `https://moq.dev/blog/${path.slice("./blog/".length, -".mdx".length)}`,
+				content,
+			})),
+	});
+}