diff --git a/packages/pl-api/lib/client.ts b/packages/pl-api/lib/client.ts
index c5a075ac8..25444e2a3 100644
--- a/packages/pl-api/lib/client.ts
+++ b/packages/pl-api/lib/client.ts
@@ -181,6 +181,7 @@ import type {
   GetJoinedEventsParams,
 } from './params/events';
 import type {
+  BlockAccountParams,
   CreateFilterParams,
   GetBlocksParams,
   GetDomainBlocksParams,
@@ -2050,9 +2051,10 @@ class PlApiClient {
      * Block account
      * Block the given account. Clients should filter statuses from this account if received (e.g. due to a boost in the Home timeline)
      * @see {@link https://docs.joinmastodon.org/methods/accounts/#block}
+     * `duration` parameter requires features{@link Features.blocksDuration}.
      */
-    blockAccount: async (accountId: string) => {
-      const response = await this.request(`/api/v1/accounts/${accountId}/block`, { method: 'POST' });
+    blockAccount: async (accountId: string, params?: BlockAccountParams) => {
+      const response = await this.request(`/api/v1/accounts/${accountId}/block`, { method: 'POST', body: params });
 
       return v.parse(relationshipSchema, response.json);
     },
@@ -2461,7 +2463,7 @@ class PlApiClient {
      * Delete a status
      * Delete one of your own statuses.
      *
-     * `delete_media` parameters requires features{@link Features.deleteMedia}.
+     * `delete_media` parameter requires features{@link Features.deleteMedia}.
      * @see {@link https://docs.joinmastodon.org/methods/statuses/#delete}
      */
     deleteStatus: async (statusId: string, deleteMedia?: boolean) => {
diff --git a/packages/pl-api/lib/features.ts b/packages/pl-api/lib/features.ts
index f5115cb1e..6ecbbcef1 100644
--- a/packages/pl-api/lib/features.ts
+++ b/packages/pl-api/lib/features.ts
@@ -420,6 +420,12 @@ const getFeatures = (instance: Instance) => {
     /** Whether people who blocked you are visible through the API. */
     blockersVisible: instance.api_versions['blockers_visible.pleroma.pl-api'] >= 1,
 
+    /**
+     * Ability to specify how long the account block should last.
+     * @see PUT /api/v1/accounts/:id/block
+     */
+    blocksDuration: instance.api_versions['block_expiration.pleroma.pl-api'] >= 1,
+
     bookmarkFolderEmojis: instance.api_versions['bookmark_folders.pleroma.pl-api'] >= 1,
 
     /**
diff --git a/packages/pl-api/lib/params/filtering.ts b/packages/pl-api/lib/params/filtering.ts
index 599a1eab9..0cc0bc37e 100644
--- a/packages/pl-api/lib/params/filtering.ts
+++ b/packages/pl-api/lib/params/filtering.ts
@@ -1,5 +1,13 @@
 import type { PaginationParams, WithRelationshipsParam } from './common';
 
+/**
+ * @category Request params
+ */
+interface BlockAccountParams {
+  /** Number. How long the block should last, in seconds. Defaults to 0 (indefinite). */
+  duration?: number;
+}
+
 /**
  * @category Request params
  */
@@ -61,6 +69,7 @@ interface UpdateFilterParams {
 }
 
 export type {
+  BlockAccountParams,
   MuteAccountParams,
   GetMutesParams,
   GetBlocksParams,