Hi HA community,
I'd like to share Alarmio — a cloud proxy service that connects Ajax Security Systems to Home Assistant using the official Ajax Enterprise API.
What it does
Ajax doesn't expose a local API, and the SIA integration is limited and unreliable. Alarmio sits between Home Assistant and the Ajax Cloud, giving you a proper native integration:
- Real-time events via Server-Sent Events (SSE) — arm/disarm, alarms, sensor triggers arrive in under 1 second
- Full security control — arm, disarm, night mode, partial arming by group
- All devices as HA entities — every sensor, detector, siren, keypad, relay, socket, camera, and Ajax accessory
- Multi-hub support — manage multiple hubs from one HA instance
- Enterprise-grade security — AES-256 credential encryption, TLS 1.3, rate limiting, full audit logging
How it works
Home Assistant ──SSE/REST──► Alarmio Proxy ──REST/SQS──► Ajax Cloud API
(api.alarmio.net) (api.ajax.systems)
Alarmio is built on the official Ajax Enterprise API — the same API Ajax makes available to approved commercial integrations. The proxy handles authentication, session management, SQS event routing, and state polling so HA always has fresh device state even when the system is disarmed.
Home Assistant Integration
Alarmio is compatible with the excellent foXaCe/ajax-security-hass HACS integration running in Proxy Mode. Big thanks to foXaCe for building and maintaining that integration.
Install via HACS:
https://github.com/foXaCe/ajax-security-hass
During setup, choose Proxy Mode and set the proxy URL to:
https://api.alarmio.net
Then enter your Ajax account email and password — that's it.
Supported hubs
- Ajax Hub 2
- Ajax Hub 2 Plus
- Ajax Hub Plus
- Ajax Hub Hybrid
Pricing
| Plan | Hubs | Monthly | Annual |
|---|---|---|---|
| Starter | 1 hub | €3 | R55/mo |
| Pro | Up to 3 hubs | €5 | R95/mo |
| Enterprise | Unlimited | €98 | R1850/mo |
7-day free trial available — no credit card required.
A note on the name
Some of you may have seen an earlier version of this under the name "Ajax Connect". We rebranded to Alarmio at Ajax Systems' request, to make it clear this is an independent service — not an official Ajax product. The technology and team are the same.
Happy to answer any questions about setup, supported devices, or how the proxy handles specific scenarios. If you're running Ajax hardware and want it properly inside HA, give it a try.