diff --git a/app/llms.txt/route.ts b/app/llms.txt/route.ts
new file mode 100644
index 0000000..761ae00
--- /dev/null
+++ b/app/llms.txt/route.ts
@@ -0,0 +1,34 @@
+import { source } from '@/lib/source';
+import { siteConfig } from '@/lib/config';
+import { llms } from 'fumadocs-core/source/llms';
+
+export const dynamic = 'force-static';
+
+const generator = llms(source);
+
+export function GET() {
+  const index = generator
+    .index()
+    // The shared loader must keep site-relative URLs for the app's own routing,
+    // so the generated index is absolutized here instead — agents fetch this
+    // file standalone, with no base URL to resolve against.
+    .replaceAll('](/', `](${siteConfig.url}/`)
+    // llms.txt expects a single H1 (ours, below); demote the generator's root
+    // heading by position rather than by literal text.
+    .replace(/^# /m, '## ');
+
+  const body = [
+    '# Next Commerce Merchant Documentation',
+    '',
+    '> Merchant documentation for Next Commerce (NEXT), an ecommerce platform for direct-to-consumer brands and performance marketers — storefronts, orders, subscriptions, payments, fulfillment, apps, and analytics.',
+    '',
+    `Related resources: [Developer Docs](https://developers.nextcommerce.com/) (APIs, themes, campaigns), [Platform Changelog](${siteConfig.url}/changelog), [nextcommerce.com](https://nextcommerce.com) (product and pricing).`,
+    '',
+    index,
+    '',
+  ].join('\n');
+
+  return new Response(body, {
+    headers: { 'Content-Type': 'text/plain; charset=utf-8' },
+  });
+}
diff --git a/lib/config.ts b/lib/config.ts
index c666225..1f05ced 100644
--- a/lib/config.ts
+++ b/lib/config.ts
@@ -1,5 +1,9 @@
 export const siteConfig = {
   companyName: 'Next Commerce',
+  // Canonical origin for absolute links in machine-readable outputs (llms.txt).
+  // Must match the route in wrangler.jsonc. No trailing slash — consumers
+  // concatenate `/${path}` onto this value.
+  url: 'https://docs.nextcommerce.com',
   githubOrg: 'NextCommerceCo',
   githubRepo: 'docs',
   get githubUrl() {