diff --git a/yt_dlp/extractor/kaltura.py b/yt_dlp/extractor/kaltura.py
index f9b9c5c78..afad279bd 100644
--- a/yt_dlp/extractor/kaltura.py
+++ b/yt_dlp/extractor/kaltura.py
@@ -1,5 +1,6 @@
-import re
 import base64
+import json
+import re
 
 from .common import InfoExtractor
 from ..compat import (
@@ -13,6 +14,7 @@ from ..utils import (
     int_or_none,
     unsmuggle_url,
     smuggle_url,
+    traverse_obj,
 )
 
 
@@ -33,7 +35,7 @@ class KalturaIE(InfoExtractor):
                 )
                 '''
     _SERVICE_URL = 'http://cdnapi.kaltura.com'
-    _SERVICE_BASE = '/api_v3/index.php'
+    _SERVICE_BASE = '/api_v3/service/multirequest'
     # See https://github.com/kaltura/server/blob/master/plugins/content/caption/base/lib/model/enums/CaptionType.php
     _CAPTION_TYPES = {
         1: 'srt',
@@ -169,30 +171,35 @@ class KalturaIE(InfoExtractor):
 
     def _kaltura_api_call(self, video_id, actions, service_url=None, *args, **kwargs):
         params = actions[0]
-        if len(actions) > 1:
-            for i, a in enumerate(actions[1:], start=1):
-                for k, v in a.items():
-                    params['%d:%s' % (i, k)] = v
+        params.update({i: a for i, a in enumerate(actions[1:], start=1)})
 
         data = self._download_json(
             (service_url or self._SERVICE_URL) + self._SERVICE_BASE,
-            video_id, query=params, *args, **kwargs)
+            video_id, data=json.dumps(params).encode('utf-8'),
+            headers={
+                'Content-Type': 'application/json',
+                'Accept-Encoding': 'gzip, deflate, br',
+            }, *args, **kwargs)
+
+        for idx, status in enumerate(data):
+            if not isinstance(status, dict):
+                continue
+            if status.get('objectType') == 'KalturaAPIException':
+                raise ExtractorError(
+                    '%s said: %s (%d)' % (self.IE_NAME, status['message'], idx))
 
-        status = data if len(actions) == 1 else data[0]
-        if status.get('objectType') == 'KalturaAPIException':
-            raise ExtractorError(
-                '%s said: %s' % (self.IE_NAME, status['message']))
+        data[1] = traverse_obj(data, (1, 'objects', 0))
 
         return data
 
     def _get_video_info(self, video_id, partner_id, service_url=None):
         actions = [
             {
-                'action': 'null',
-                'apiVersion': '3.1.5',
-                'clientTag': 'kdp:v3.8.5',
+                'apiVersion': '3.3.0',
+                'clientTag': 'html5:v3.1.0',
                 'format': 1,  # JSON, 2 = XML, 3 = PHP
-                'service': 'multirequest',
+                'ks': '',
+                'partnerId': partner_id,
             },
             {
                 'expiry': 86400,
@@ -201,12 +208,14 @@ class KalturaIE(InfoExtractor):
                 'widgetId': '_%s' % partner_id,
             },
             {
-                'action': 'get',
-                'entryId': video_id,
+                'action': 'list',
+                'filter': {'redirectFromEntryId': video_id},
                 'service': 'baseentry',
                 'ks': '{1:result:ks}',
-                'responseProfile:fields': 'createdAt,dataUrl,duration,name,plays,thumbnailUrl,userId',
-                'responseProfile:type': 1,
+                'responseProfile': {
+                    'type': 1,
+                    'fields': 'createdAt,dataUrl,duration,name,plays,thumbnailUrl,userId',
+                },
             },
             {
                 'action': 'getbyentryid',