diff --git a/src/app.ts b/src/app.ts
index cbfe5b1..0d38e34 100644
--- a/src/app.ts
+++ b/src/app.ts
@@ -53,9 +53,11 @@ import {
   createStatusController,
   favouriteController,
   favouritedByController,
+  pinController,
   rebloggedByController,
   statusController,
   unbookmarkController,
+  unpinController,
 } from './controllers/api/statuses.ts';
 import { streamingController } from './controllers/api/streaming.ts';
 import {
@@ -158,6 +160,8 @@ app.get('/api/v1/statuses/:id{[0-9a-f]{64}}', statusController);
 app.post('/api/v1/statuses/:id{[0-9a-f]{64}}/favourite', requirePubkey, favouriteController);
 app.post('/api/v1/statuses/:id{[0-9a-f]{64}}/bookmark', requirePubkey, bookmarkController);
 app.post('/api/v1/statuses/:id{[0-9a-f]{64}}/unbookmark', requirePubkey, unbookmarkController);
+app.post('/api/v1/statuses/:id{[0-9a-f]{64}}/pin', requirePubkey, pinController);
+app.post('/api/v1/statuses/:id{[0-9a-f]{64}}/unpin', requirePubkey, unpinController);
 app.post('/api/v1/statuses', requirePubkey, createStatusController);
 
 app.post('/api/v1/media', requireRole('user', { validatePayload: false }), mediaController);
diff --git a/src/controllers/api/accounts.ts b/src/controllers/api/accounts.ts
index b25dbe4..6ad3944 100644
--- a/src/controllers/api/accounts.ts
+++ b/src/controllers/api/accounts.ts
@@ -7,12 +7,12 @@ import { type DittoFilter } from '@/filter.ts';
 import { getAuthor, getFollowedPubkeys } from '@/queries.ts';
 import { booleanParamSchema, fileSchema } from '@/schema.ts';
 import { jsonMetaContentSchema } from '@/schemas/nostr.ts';
-import { addTag, deleteTag } from '@/tags.ts';
+import { addTag, deleteTag, getTagSet } from '@/tags.ts';
 import { uploadFile } from '@/upload.ts';
 import { lookupAccount, nostrNow } from '@/utils.ts';
 import { paginated, paginationSchema, parseBody, updateListEvent } from '@/utils/web.ts';
 import { createEvent } from '@/utils/web.ts';
-import { renderAccounts, renderEventAccounts } from '@/views.ts';
+import { renderAccounts, renderEventAccounts, renderStatuses } from '@/views.ts';
 import { accountFromPubkey, renderAccount } from '@/views/mastodon/accounts.ts';
 import { renderRelationship } from '@/views/mastodon/relationships.ts';
 import { renderStatus } from '@/views/mastodon/statuses.ts';
@@ -134,9 +134,14 @@ const accountStatusesController: AppController = async (c) => {
   const { since, until } = paginationSchema.parse(c.req.query());
   const { pinned, limit, exclude_replies, tagged } = accountStatusesQuerySchema.parse(c.req.query());
 
-  // Nostr doesn't support pinned statuses.
   if (pinned) {
-    return c.json([]);
+    const [pinEvent] = await eventsDB.getEvents([{ kinds: [10001], authors: [pubkey], limit: 1 }]);
+    if (pinEvent) {
+      const pinnedEventIds = getTagSet(pinEvent.tags, 'e');
+      return renderStatuses(c, [...pinnedEventIds].reverse());
+    } else {
+      return c.json([]);
+    }
   }
 
   const filter: DittoFilter<1> = {
diff --git a/src/controllers/api/statuses.ts b/src/controllers/api/statuses.ts
index 1ba82b3..9cb789b 100644
--- a/src/controllers/api/statuses.ts
+++ b/src/controllers/api/statuses.ts
@@ -207,13 +207,69 @@ const unbookmarkController: AppController = async (c) => {
   }
 };
 
+/** https://docs.joinmastodon.org/methods/statuses/#pin */
+const pinController: AppController = async (c) => {
+  const pubkey = c.get('pubkey')!;
+  const eventId = c.req.param('id');
+
+  const event = await getEvent(eventId, {
+    kind: 1,
+    relations: ['author', 'event_stats', 'author_stats'],
+  });
+
+  if (event) {
+    await updateListEvent(
+      { kinds: [10001], authors: [pubkey] },
+      (tags) => addTag(tags, ['e', eventId]),
+      c,
+    );
+
+    const status = await renderStatus(event, pubkey);
+    if (status) {
+      status.pinned = true;
+    }
+    return c.json(status);
+  } else {
+    return c.json({ error: 'Event not found.' }, 404);
+  }
+};
+
+/** https://docs.joinmastodon.org/methods/statuses/#unpin */
+const unpinController: AppController = async (c) => {
+  const pubkey = c.get('pubkey')!;
+  const eventId = c.req.param('id');
+
+  const event = await getEvent(eventId, {
+    kind: 1,
+    relations: ['author', 'event_stats', 'author_stats'],
+  });
+
+  if (event) {
+    await updateListEvent(
+      { kinds: [10001], authors: [pubkey] },
+      (tags) => deleteTag(tags, ['e', eventId]),
+      c,
+    );
+
+    const status = await renderStatus(event, pubkey);
+    if (status) {
+      status.pinned = false;
+    }
+    return c.json(status);
+  } else {
+    return c.json({ error: 'Event not found.' }, 404);
+  }
+};
+
 export {
   bookmarkController,
   contextController,
   createStatusController,
   favouriteController,
   favouritedByController,
+  pinController,
   rebloggedByController,
   statusController,
   unbookmarkController,
+  unpinController,
 };
diff --git a/src/queries.ts b/src/queries.ts
index 95020d0..de60553 100644
--- a/src/queries.ts
+++ b/src/queries.ts
@@ -4,6 +4,7 @@ import { type Event, findReplyTag } from '@/deps.ts';
 import { type AuthorMicrofilter, type DittoFilter, type IdMicrofilter, type Relation } from '@/filter.ts';
 import { reqmeister } from '@/reqmeister.ts';
 import { type DittoEvent } from '@/store.ts';
+import { getTagSet } from '@/tags.ts';
 
 interface GetEventOpts<K extends number> {
   /** Signal to abort the request. */
@@ -87,10 +88,7 @@ const getFollows = async (pubkey: string, signal?: AbortSignal): Promise<Event<3
 async function getFollowedPubkeys(pubkey: string, signal?: AbortSignal): Promise<string[]> {
   const event = await getFollows(pubkey, signal);
   if (!event) return [];
-
-  return event.tags
-    .filter((tag) => tag[0] === 'p')
-    .map((tag) => tag[1]);
+  return [...getTagSet(event.tags, 'p')];
 }
 
 /** Get pubkeys the user follows, including the user's own pubkey. */
diff --git a/src/views.ts b/src/views.ts
index 7c22170..b87baad 100644
--- a/src/views.ts
+++ b/src/views.ts
@@ -47,6 +47,10 @@ async function renderAccounts(c: AppContext, authors: string[], signal = AbortSi
 
 /** Render statuses by event IDs. */
 async function renderStatuses(c: AppContext, ids: string[], signal = AbortSignal.timeout(1000)) {
+  if (!ids.length) {
+    return c.json([]);
+  }
+
   const { limit } = paginationSchema.parse(c.req.query());
 
   const events = await eventsDB.getEvents(
diff --git a/src/views/mastodon/statuses.ts b/src/views/mastodon/statuses.ts
index d869563..d840c36 100644
--- a/src/views/mastodon/statuses.ts
+++ b/src/views/mastodon/statuses.ts
@@ -38,6 +38,7 @@ async function renderStatus(event: DittoEvent<1>, viewerPubkey?: string) {
         ? await eventsDB.getEvents([
           { kinds: [6], '#e': [event.id], authors: [viewerPubkey], limit: 1 },
           { kinds: [7], '#e': [event.id], authors: [viewerPubkey], limit: 1 },
+          { kinds: [10001], '#e': [event.id], authors: [viewerPubkey], limit: 1 },
           { kinds: [10003], '#e': [event.id], authors: [viewerPubkey], limit: 1 },
         ])
         : [],
@@ -45,6 +46,7 @@ async function renderStatus(event: DittoEvent<1>, viewerPubkey?: string) {
 
   const reactionEvent = relatedEvents.find((event) => event.kind === 6);
   const repostEvent = relatedEvents.find((event) => event.kind === 7);
+  const pinEvent = relatedEvents.find((event) => event.kind === 10001);
   const bookmarkEvent = relatedEvents.find((event) => event.kind === 10003);
 
   const content = buildInlineRecipients(mentions) + html;
@@ -79,6 +81,7 @@ async function renderStatus(event: DittoEvent<1>, viewerPubkey?: string) {
     reblogged: Boolean(repostEvent),
     muted: false,
     bookmarked: Boolean(bookmarkEvent),
+    pinned: Boolean(pinEvent),
     reblog: null,
     application: null,
     media_attachments: media.map(renderAttachment),