Send and receive SMS through your own Android device with a SIM card. No third-party SMS providers. No per-message fees. Your phone, your messages, your API.
Three steps from zero to a working SMS API.
Download the Signalhouse SMS Gateway APK and install it on any spare Android phone with an active SIM card.
Create an account, open your dashboard, and scan the QR code with the Android app to pair your phone in seconds.
Use the REST API to send SMS from any app or script. Inbound messages stream back to your dashboard in real time.
A simple, self-hosted-friendly SMS gateway.
Messages go through your own device and carrier. No Twilio, no middleman, no per-message surcharges.
One POST to send, one GET to list. API keys, JSON payloads, webhooks for inbound. That's it.
Your account, your device, your data. No analytics, no message content mining.
Incoming SMS arrive via webhook within seconds and show up on your dashboard instantly.
Create an account, download the app, and scan a QR code. You'll be sending SMS from the API in under five minutes.