diff --git a/src/app.ts b/src/app.ts
index 3fcd970..8a90aba 100644
--- a/src/app.ts
+++ b/src/app.ts
@@ -28,6 +28,7 @@ import {
 import { streamingController } from './controllers/api/streaming.ts';
 import { indexController } from './controllers/site.ts';
 import { hostMetaController } from './controllers/well-known/host-meta.ts';
+import { nodeInfoController, nodeInfoSchemaController } from './controllers/well-known/nodeinfo.ts';
 import { nostrController } from './controllers/well-known/nostr.ts';
 import { webfingerController } from './controllers/well-known/webfinger.ts';
 import { auth19, requireAuth } from './middleware/auth19.ts';
@@ -61,8 +62,11 @@ app.use('*', cors({ origin: '*', exposeHeaders: ['link'] }), auth19, auth98());
 
 app.get('/.well-known/webfinger', webfingerController);
 app.get('/.well-known/host-meta', hostMetaController);
+app.get('/.well-known/nodeinfo', nodeInfoController);
 app.get('/.well-known/nostr.json', nostrController);
 
+app.get('/nodeinfo/:version', nodeInfoSchemaController);
+
 app.get('/api/v1/instance', instanceController);
 
 app.get('/api/v1/apps/verify_credentials', appCredentialsController);
diff --git a/src/controllers/well-known/nodeinfo.ts b/src/controllers/well-known/nodeinfo.ts
new file mode 100644
index 0000000..47bf6d8
--- /dev/null
+++ b/src/controllers/well-known/nodeinfo.ts
@@ -0,0 +1,55 @@
+import { Conf } from '@/config.ts';
+
+import type { AppController } from '@/app.ts';
+
+const nodeInfoController: AppController = (c) => {
+  return c.json({
+    links: [
+      {
+        rel: 'http://nodeinfo.diaspora.software/ns/schema/2.0',
+        href: Conf.local('/nodeinfo/2.0'),
+      },
+      {
+        rel: 'http://nodeinfo.diaspora.software/ns/schema/2.1',
+        href: Conf.local('/nodeinfo/2.1'),
+      },
+    ],
+  });
+};
+
+const nodeInfoSchemaController: AppController = (c) => {
+  return c.json({
+    version: '2.1',
+    software: {
+      name: 'ditto',
+      version: '0.0.0',
+      repository: 'https://gitlab.com/soapbox-pub/ditto',
+      homepage: 'https://soapbox.pub',
+    },
+    protocols: [
+      'activitypub',
+    ],
+    services: {
+      inbound: [],
+      outbound: [],
+    },
+    openRegistrations: false,
+    usage: {
+      users: {
+        total: 0,
+        activeMonth: 0,
+        activeHalfyear: 0,
+      },
+      localPosts: 0,
+      localComments: 0,
+    },
+    metadata: {
+      features: [
+        'nip05',
+        'nostr_bridge',
+      ],
+    },
+  });
+};
+
+export { nodeInfoController, nodeInfoSchemaController };