diff --git a/app/Users/Controllers/UserApiController.php b/app/Users/Controllers/UserApiController.php
index 880165e1b..1ccfecd73 100644
--- a/app/Users/Controllers/UserApiController.php
+++ b/app/Users/Controllers/UserApiController.php
@@ -90,7 +90,7 @@ class UserApiController extends ApiController
     public function create(Request $request)
     {
         $data = $this->validate($request, $this->rules()['create']);
-        $sendInvite = ($data['send_invite'] ?? false) === true;
+        $sendInvite = boolval($data['send_invite'] ?? false) === true;
 
         $user = null;
         DB::transaction(function () use ($data, $sendInvite, &$user) {
diff --git a/resources/views/api-docs/parts/getting-started.blade.php b/resources/views/api-docs/parts/getting-started.blade.php
index 75b71c6be..229fe7dce 100644
--- a/resources/views/api-docs/parts/getting-started.blade.php
+++ b/resources/views/api-docs/parts/getting-started.blade.php
@@ -66,6 +66,12 @@
     </em>
 </p>
 
+<p>
+    <em>
+        * Form requests can accept boolean (<code>true</code>/<code>false</code>) values via a <code>1</code> or <code>0</code>.
+    </em>
+</p>
+
 <p>
     Regardless of format chosen, ensure you set a <code>Content-Type</code> header on requests so that the system can correctly parse your request data.
     The API is primarily designed to be interfaced using JSON, since responses are always in JSON format, hence examples in this documentation will be shown as JSON.
@@ -82,17 +88,19 @@
 
 <pre><code class="language-json">{
   "name": "My new item",
+  "locked": true,
   "books": [105, 263],
   "tags": [{"name": "Tag Name", "value": "Tag Value"}],
 }</code></pre>
 
 <p><strong>x-www-form-urlencoded</strong></p>
 
-<pre><code class="language-text">name=My%20new%20item&books%5B0%5D=105&books%5B1%5D=263&tags%5B0%5D%5Bname%5D=Tag%20Name&tags%5B0%5D%5Bvalue%5D=Tag%20Value</code></pre>
+<pre><code class="language-text">name=My%20new%20item&locked=1&books%5B0%5D=105&books%5B1%5D=263&tags%5B0%5D%5Bname%5D=Tag%20Name&tags%5B0%5D%5Bvalue%5D=Tag%20Value</code></pre>
 
 <p><strong>x-www-form-urlencoded (Decoded for readability)</strong></p>
 
 <pre><code class="language-text">name=My new item
+locked=1
 books[0]=105
 books[1]=263
 tags[0][name]=Tag Name
diff --git a/tests/Api/UsersApiTest.php b/tests/Api/UsersApiTest.php
index 6ad727257..a0c67d0d2 100644
--- a/tests/Api/UsersApiTest.php
+++ b/tests/Api/UsersApiTest.php
@@ -143,6 +143,23 @@ class UsersApiTest extends TestCase
         Notification::assertSentTo($user, UserInviteNotification::class);
     }
 
+    public function test_create_with_send_invite_works_with_value_of_1()
+    {
+        $this->actingAsApiAdmin();
+        Notification::fake();
+
+        $resp = $this->postJson($this->baseEndpoint, [
+            'name'        => 'Benny Boris',
+            'email'       => 'bboris@example.com',
+            'send_invite' => '1', // Submissions via x-www-form-urlencoded/form-data may use 1 instead of boolean
+        ]);
+
+        $resp->assertStatus(200);
+        /** @var User $user */
+        $user = User::query()->where('email', '=', 'bboris@example.com')->first();
+        Notification::assertSentTo($user, UserInviteNotification::class);
+    }
+
     public function test_create_name_and_email_validation()
     {
         $this->actingAsApiAdmin();