---
title: "Signl4 (@signl4)"
description: "Mobile alerting and response software for IT and OT operations."
account: "signl4"
---

# Signl4

Mobile alerting and response software for IT and OT operations.

## APIs

1 public API with a stored document.
Each links to its markdown overview; the same address with
`/llms.txt` in place of `.md` lists its operations.
Changes across these APIs: https://skmtc.dev/signl4/feed.md

- [SIGNL4 API V1](https://skmtc.dev/signl4/apis/signl4-api-v1.md): Incident alerts, on-call schedules, teams and users: trigger alerts, manage duties and webhooks