Kasa KP125M: what it works with

TP-Link · model Kasa KP125M · sold in US

Yes to Apple Home, Google Home, Alexa and SmartThings: the Kasa KP125M joins all four over Matter, and Home Assistant can add it through its TP-Link integration or Matter. It's a slim 2.4 GHz Wi-Fi plug for US outlets, rated 15 A / 1800 W at 100–120 V, set up in the Kasa app with no hub, and it keeps LAN control if your internet drops. The Kasa or Tapo app shows energy use. Firmware 1.4.1 sends those readings over Matter to SmartThings and Home Assistant, but Apple Home doesn't display them.

Checked against 9 sources on

Ecosystem compatibility

PlatformWorks?Details
MatterYes, over Wi-FiTP-Link calls it Kasa's first Matter-certified plug. We did not find a CSA listing that names the KP125M model number.[1],[2],[5] Other Matter plugs
Apple HomeVia MatterSet up in Apple Home by scanning the Matter code. We found no separate HomeKit (HAP) support for this model.[1],[7]
Google HomeVia MatterSet up in the Google Home app through Matter; needs a Google Matter controller.[1],[7]
Amazon AlexaVia MatterTP-Link says Matter Kasa devices connect to Alexa directly and don't need the Kasa skill. Needs an Echo that works as a Matter controller.[2],[6]
SmartThingsVia MatterTP-Link lists Samsung SmartThings; setup is through Matter.[1],[7]
Home AssistantYesHome Assistant's TP-Link Smart Home integration lists the KP125M with a footnote we could not read; it needs TP-Link account credentials for newer devices. It can also be added through the Matter integration.[8],[9]

“Via Matter” means you add it with that platform's Matter controller instead of a brand skill or app. “Unconfirmed” means we couldn't find an official source either way. How we verify.

Specs that matter for setup

Radio
Wi-Fi, Bluetooth[2]
Hub required
No[2],[3]
Local control
Yes[5]
Energy monitoring
Yes[1],[2],[3],[4]
Max load
1,800 W[2]

Before you buy

Quick answers

Does the Kasa KP125M work with Apple Home?
Yes, through Matter: add it with Apple Home's Matter pairing. Set up in Apple Home by scanning the Matter code. We found no separate HomeKit (HAP) support for this model. More plugs for Apple Home
Does the Kasa KP125M work with Google Home?
Yes, through Matter: add it with Google Home's Matter pairing. Set up in the Google Home app through Matter; needs a Google Matter controller. More plugs for Google Home
Does the Kasa KP125M work with Amazon Alexa?
Yes, through Matter: add it with Amazon Alexa's Matter pairing. TP-Link says Matter Kasa devices connect to Alexa directly and don't need the Kasa skill. Needs an Echo that works as a Matter controller. More plugs for Amazon Alexa
Does the Kasa KP125M work with SmartThings?
Yes, through Matter: add it with SmartThings' Matter pairing. TP-Link lists Samsung SmartThings; setup is through Matter. More plugs for SmartThings
Does the Kasa KP125M work with Home Assistant?
Yes. The Kasa KP125M works with Home Assistant directly. Home Assistant's TP-Link Smart Home integration lists the KP125M with a footnote we could not read; it needs TP-Link account credentials for newer devices. It can also be added through the Matter integration. More plugs for Home Assistant

Sources

  1. KP125M — TP-Link manufacturer · accessed Oct 10, 2026
  2. KP125M Kasa Smart Wi-Fi Plug Slim Energy Monitoring Datasheet — TP-Link manufacturer · accessed Oct 10, 2026
  3. User Guide Kasa Smart Wi-Fi Plug Slim, Energy Monitoring — TP-Link manufacturer · accessed Oct 10, 2026
  4. Download for KP125M V1.60 — TP-Link manufacturer · accessed Oct 10, 2026
  5. Kasa Smart Launches its First Matter-Certified Smart Plug with Energy Monitoring — TP-Link manufacturer · accessed Oct 10, 2026
  6. Matter - Home Assistant — Home Assistant ecosystem · accessed Oct 10, 2026

Official product page: www.tp-link.com

Other plugs for the same region