diff --git a/lib/REST/Miniflux/V1.php b/lib/REST/Miniflux/V1.php
index 47decbf..51884ea 100644
--- a/lib/REST/Miniflux/V1.php
+++ b/lib/REST/Miniflux/V1.php
@@ -71,6 +71,8 @@ class V1 extends \JKingWeb\Arsse\REST\AbstractHandler {
         'disabled'          => "boolean",
         'ignore_http_cache' => "boolean",
         'fetch_via_proxy'   => "boolean",
+        'entry_ids'         => "array", // this is a special case: it is an array of integers
+        'status'            => "string",
     ];
     protected const USER_META_MAP = [
         // Miniflux ID             // Arsse ID        Default value
@@ -146,7 +148,7 @@ class V1 extends \JKingWeb\Arsse\REST\AbstractHandler {
         ],
         '/entries'                       => [
             'GET'                        => ["getEntries",            false, false, false, true,  []],
-            'PUT'                        => ["updateEntries",         false, false, true,  false, []],
+            'PUT'                        => ["updateEntries",         false, false, true,  false, ["entry_ids", "status"]],
         ],
         '/entries/1'                     => [
             'GET'                        => ["getEntry",              false, true,  false, false, []],
@@ -349,8 +351,17 @@ class V1 extends \JKingWeb\Arsse\REST\AbstractHandler {
                 (in_array($k, ["keeplist_rules", "blocklist_rules"]) && !Rule::validate($body[$k]))
                 || (in_array($k, ["url", "feed_url"]) && !URL::absolute($body[$k])) 
                 || ($k === "category_id" && $body[$k] < 1)
+                || ($k === "status" && !in_array($body[$k], ["read", "unread", "removed"]))
             ) {
                 return new ErrorResponse(["InvalidInputValue", 'field' => $k], 422);
+            } elseif ($k === "entry_ids") {
+                foreach ($body[$k] as $v) {
+                    if (gettype($v) !== "integer") {
+                        return new ErrorResponse(["InvalidInputType", 'field' => $k, 'expected' => "integer", 'actual' => gettype($v)], 422);
+                    } elseif ($v < 1) {
+                        return new ErrorResponse(["InvalidInputValue", 'field' => $k], 422);
+                    }
+                }
             }
         }
         //normalize user-specific input
@@ -368,7 +379,7 @@ class V1 extends \JKingWeb\Arsse\REST\AbstractHandler {
         }
         // check for any missing required values
         foreach ($req as $k) {
-            if (!isset($body[$k])) {
+            if (!isset($body[$k]) || (is_array($body[$k]) && !$body[$k])) {
                 return new ErrorResponse(["MissingInputValue", 'field' => $k], 422);
             }
         }
@@ -629,16 +640,6 @@ class V1 extends \JKingWeb\Arsse\REST\AbstractHandler {
         return new EmptyResponse(204);
     }
 
-    protected function markUserByNum(array $path): ResponseInterface {
-        // this function is restricted to the logged-in user
-        $user = Arsse::$user->propertiesGet(Arsse::$user->id, false);
-        if (((int) $path[1]) !== $user['num']) {
-            return new ErrorResponse("403", 403);
-        }
-        Arsse::$db->articleMark(Arsse::$user->id, ['read' => true], (new Context)->hidden(false));
-        return new EmptyResponse(204);
-    }
-
     /** Returns a useful subset of user metadata
      * 
      * The following keys are included:
@@ -729,23 +730,6 @@ class V1 extends \JKingWeb\Arsse\REST\AbstractHandler {
         return new EmptyResponse(204);
     }
 
-    protected function markCategory(array $path): ResponseInterface {
-        $folder = $path[1] - 1;
-        $c = new Context;
-        if ($folder === 0) {
-            // if we're marking the root folder don't also mark its child folders, since Miniflux organizes it as a peer of other folders
-            $c = $c->folderShallow($folder);
-        } else {
-            $c = $c->folder($folder);
-        }
-        try {
-            Arsse::$db->articleMark(Arsse::$user->id, ['read' => true], $c);
-        } catch (ExceptionInput $e) {
-            return new ErrorResponse("404", 404);
-        }
-        return new EmptyResponse(204);
-    }
-
     protected function transformFeed(array $sub, int $uid, string $rootName, \DateTimeZone $tz): array {
         $url = new Uri($sub['url']);
         return [
@@ -1106,6 +1090,77 @@ class V1 extends \JKingWeb\Arsse\REST\AbstractHandler {
         }
     }
 
+    protected function updateEntries(array $data): ResponseInterface {
+        if ($data['status'] === "read") {
+            $in = ['read' => true, 'hidden' => false];
+        } elseif ($data['status'] === "unread") {
+            $in = ['read' => false, 'hidden' => false];
+        } elseif ($data['status'] === "removed") {
+            $in = ['read' => true, 'hidden' => true];
+        }
+        assert(isset($in), new \Exception("Unknown status specified"));
+        Arsse::$db->articleMark(Arsse::$user->id, $in, (new Context)->articles($data['entry_ids']));
+        return new EmptyResponse(204);
+    }
+
+    protected function massRead(Context $c): void {
+        Arsse::$db->articleMark(Arsse::$user->id, ['read' => true], $c->hidden(false));
+    }
+
+    protected function markUserByNum(array $path): ResponseInterface {
+        // this function is restricted to the logged-in user
+        $user = Arsse::$user->propertiesGet(Arsse::$user->id, false);
+        if (((int) $path[1]) !== $user['num']) {
+            return new ErrorResponse("403", 403);
+        }
+        $this->massRead(new Context);
+        return new EmptyResponse(204);
+    }
+
+    protected function markFeed(array $path): ResponseInterface {
+        try {
+            $this->massRead((new Context)->subscription((int) $path[1]));
+        } catch (ExceptionInput $e) {
+            return new ErrorResponse("404", 404);
+        }
+        return new EmptyResponse(204);
+    }
+
+    protected function markCategory(array $path): ResponseInterface {
+        $folder = $path[1] - 1;
+        $c = new Context;
+        if ($folder === 0) {
+            // if we're marking the root folder don't also mark its child folders, since Miniflux organizes it as a peer of other folders
+            $c->folderShallow($folder);
+        } else {
+            $c->folder($folder);
+        }
+        try {
+            $this->massRead($c);
+        } catch (ExceptionInput $e) {
+            return new ErrorResponse("404", 404);
+        }
+        return new EmptyResponse(204);
+    }
+
+    protected function toggleEntryBookmark(array $path): ResponseInterface {
+        // NOTE: A toggle is bad design, but we have no choice but to implement what Miniflux does
+        $id = (int) $path[1];
+        $c = (new Context)->article($id);
+        try {
+            $tr = Arsse::$db->begin();
+            if (Arsse::$db->articleCount(Arsse::$user->id, (clone $c)->starred(false))) {
+                Arsse::$db->articleMark(Arsse::$user->id, ['starred' => true], $c);
+            } else {
+                Arsse::$db->articleMark(Arsse::$user->id, ['starred' => false], $c);
+            }
+            $tr->commit();
+        } catch (ExceptionInput $e) {
+            return new ErrorResponse("404", 404);
+        }
+        return new EmptyResponse(204);
+    }
+
     public static function tokenGenerate(string $user, string $label): string {
         // Miniflux produces tokenss in base64url alphabet
         $t = str_replace(["+", "/"], ["-", "_"], base64_encode(random_bytes(self::TOKEN_LENGTH)));
diff --git a/tests/cases/REST/Miniflux/TestV1.php b/tests/cases/REST/Miniflux/TestV1.php
index a2c6aa8..18982f3 100644
--- a/tests/cases/REST/Miniflux/TestV1.php
+++ b/tests/cases/REST/Miniflux/TestV1.php
@@ -398,13 +398,6 @@ class TestV1 extends \JKingWeb\Arsse\Test\AbstractTest {
         $this->assertMessage(new ErrorResponse("403", 403), $this->req("DELETE", "/users/2112"));
     }
 
-    public function testMarkAllArticlesAsRead(): void {
-        \Phake::when(Arsse::$db)->articleMark->thenReturn(true);
-        $this->assertMessage(new ErrorResponse("403", 403), $this->req("PUT", "/users/1/mark-all-as-read"));
-        $this->assertMessage(new EmptyResponse(204), $this->req("PUT", "/users/42/mark-all-as-read"));
-        \Phake::verify(Arsse::$db)->articleMark("john.doe@example.com", ['read' => true], (new Context)->hidden(false));
-    }
-
     public function testListCategories(): void {
         \Phake::when(Arsse::$db)->folderList->thenReturn(new Result($this->v([
             ['id' => 1,  'name' => "Science"],
@@ -512,18 +505,6 @@ class TestV1 extends \JKingWeb\Arsse\Test\AbstractTest {
         );
     }
 
-    public function testMarkACategoryAsRead(): void {
-        \Phake::when(Arsse::$db)->articleMark->thenReturn(1)->thenReturn(1)->thenThrow(new ExceptionInput("idMissing"));
-        $this->assertMessage(new EmptyResponse(204), $this->req("PUT", "/categories/2/mark-all-as-read"));
-        $this->assertMessage(new EmptyResponse(204), $this->req("PUT", "/categories/1/mark-all-as-read"));
-        $this->assertMessage(new ErrorResponse("404", 404), $this->req("PUT", "/categories/2112/mark-all-as-read"));
-        \Phake::inOrder(
-            \Phake::verify(Arsse::$db)->articleMark("john.doe@example.com", ['read' => true], (new Context)->folder(1)),
-            \Phake::verify(Arsse::$db)->articleMark("john.doe@example.com", ['read' => true], (new Context)->folderShallow(0)),
-            \Phake::verify(Arsse::$db)->articleMark("john.doe@example.com", ['read' => true], (new Context)->folder(2111))
-        );
-    }
-
     public function testListFeeds(): void {
         \Phake::when(Arsse::$db)->subscriptionList->thenReturn(new Result($this->v(self::FEEDS)));
         $exp = new Response(self::FEEDS_OUT);
@@ -831,6 +812,7 @@ class TestV1 extends \JKingWeb\Arsse\Test\AbstractTest {
     }
 
     public function provideSingleEntryQueries(): iterable {
+        self::clearData();
         $c = new Context;
         return [
             ["/entries/42",                 (clone $c)->article(42),                     [self::ENTRIES[1]],                   new Response(self::ENTRIES_OUT[1])],
@@ -846,4 +828,97 @@ class TestV1 extends \JKingWeb\Arsse\Test\AbstractTest {
             ["/categories/1/entries/42",    (clone $c)->folderShallow(0)->article(42),   [self::ENTRIES[1]],                   new Response(self::ENTRIES_OUT[1])],
         ];
     }
+
+    /** @dataProvider provideEntryMarkings */
+    public function testMarkEntries(array $in, ?array $data, ResponseInterface $exp): void {
+        \Phake::when(Arsse::$db)->articleMark->thenReturn(0);
+        $this->assertMessage($exp, $this->req("PUT", "/entries", $in));
+        if ($data) {
+            \Phake::verify(Arsse::$db)->articleMark(Arsse::$user->id, $data, (new Context)->articles($in['entry_ids']));
+        } else {
+            \Phake::verify(Arsse::$db, \Phake::times(0))->articleMark;
+        }
+    }
+
+    public function provideEntryMarkings(): iterable {
+        self::clearData();
+        return [
+            [['status' => "read"],                           null,                                 new ErrorResponse(["MissingInputValue", 'field' => "entry_ids"], 422)],
+            [['entry_ids' => [1]],                           null,                                 new ErrorResponse(["MissingInputValue", 'field' => "status"], 422)],
+            [['entry_ids' => [], 'status' => "read"],        null,                                 new ErrorResponse(["MissingInputValue", 'field' => "entry_ids"], 422)],
+            [['entry_ids' => 1, 'status' => "read"],         null,                                 new ErrorResponse(["InvalidInputType", 'field' => "entry_ids", 'expected' => "array", 'actual' => "integer"], 422)],
+            [['entry_ids' => ["1"], 'status' => "read"],     null,                                 new ErrorResponse(["InvalidInputType", 'field' => "entry_ids", 'expected' => "integer", 'actual' => "string"], 422)],
+            [['entry_ids' => [1], 'status' => 1],            null,                                 new ErrorResponse(["InvalidInputType", 'field' => "status", 'expected' => "string", 'actual' => "integer"], 422)],
+            [['entry_ids' => [0], 'status' => "read"],       null,                                 new ErrorResponse(["InvalidInputValue", 'field' => "entry_ids",], 422)],
+            [['entry_ids' => [1], 'status' => "reread"],     null,                                 new ErrorResponse(["InvalidInputValue", 'field' => "status",], 422)],
+            [['entry_ids' => [1, 2], 'status' => "read"],    ['read' => true,  'hidden' => false], new EmptyResponse(204)],
+            [['entry_ids' => [1, 2], 'status' => "unread"],  ['read' => false, 'hidden' => false], new EmptyResponse(204)],
+            [['entry_ids' => [1, 2], 'status' => "removed"], ['read' => true,  'hidden' => true],  new EmptyResponse(204)],
+        ];
+    }
+
+    /** @dataProvider provideMassMarkings */
+    public function testMassMarkEntries(string $url, Context $c, $out, ResponseInterface $exp): void {
+        if ($out instanceof \Exception) {
+            \Phake::when(Arsse::$db)->articleMark->thenThrow($out);
+        } else {
+            \Phake::when(Arsse::$db)->articleMark->thenReturn($out);
+        }
+        $this->assertMessage($exp, $this->req("PUT", $url));
+        if ($out !== null) {
+            \Phake::verify(Arsse::$db)->articleMark(Arsse::$user->id, ['read' => true], $c);
+        } else {
+            \Phake::verify(Arsse::$db, \Phake::times(0))->articleMark;
+        }
+    }
+
+    public function provideMassMarkings(): iterable {
+        self::clearData();
+        $c = (new Context)->hidden(false);
+        return [
+            ["/users/42/mark-all-as-read",        $c,                             1123,                            new EmptyResponse(204)],
+            ["/users/2112/mark-all-as-read",      $c,                             null,                            new ErrorResponse("403", 403)],
+            ["/feeds/47/mark-all-as-read",        (clone $c)->subscription(47),   2112,                            new EmptyResponse(204)],
+            ["/feeds/2112/mark-all-as-read",      (clone $c)->subscription(2112), new ExceptionInput("idMissing"), new ErrorResponse("404", 404)],
+            ["/categories/47/mark-all-as-read",   (clone $c)->folder(46),         1337,                            new EmptyResponse(204)],
+            ["/categories/2112/mark-all-as-read", (clone $c)->folder(2111),       new ExceptionInput("idMissing"), new ErrorResponse("404", 404)],
+            ["/categories/1/mark-all-as-read",    (clone $c)->folderShallow(0),   6666,                            new EmptyResponse(204)],
+        ];
+    }
+
+    /** @dataProvider provideBookmarkTogglings */
+    public function testToggleABookmark($before, ?bool $after, ResponseInterface $exp): void {
+        $c = (new Context)->article(2112);
+        \Phake::when(Arsse::$db)->articleMark->thenReturn(1);
+        if ($before instanceof \Exception) {
+            \Phake::when(Arsse::$db)->articleCount->thenThrow($before);
+        } else {
+            \Phake::when(Arsse::$db)->articleCount->thenReturn($before);
+        }
+        $this->assertMessage($exp, $this->req("PUT", "/entries/2112/bookmark"));
+        if ($after !== null) {
+            \Phake::inOrder(
+                \Phake::verify(Arsse::$db)->begin(),
+                \Phake::verify(Arsse::$db)->articleCount(Arsse::$user->id, (clone $c)->starred(false)),
+                \Phake::verify(Arsse::$db)->articleMark(Arsse::$user->id, ['starred' => $after], $c),
+                \Phake::verify($this->transaction)->commit()
+            );
+        } else {
+            \Phake::inOrder(
+                \Phake::verify(Arsse::$db)->begin(),
+                \Phake::verify(Arsse::$db)->articleCount(Arsse::$user->id, (clone $c)->starred(false))
+            );
+            \Phake::verify(Arsse::$db, \Phake::times(0))->articleMark;
+            \Phake::verifyNoInteraction($this->transaction);
+        }
+    }
+
+    public function provideBookmarkTogglings(): iterable {
+        self::clearData();
+        return [
+            [1,                                    true,  new EmptyResponse(204)],
+            [0,                                    false, new EmptyResponse(204)],
+            [new ExceptionInput("subjectMissing"), null,  new ErrorResponse("404", 404)],
+        ];
+    }
 }