Actionist·SIGNL4
SIGNL4

SIGNL4

· #283 most-used

Mobile alerting and on-call management for critical operations teams

CommunicationProductivityDeveloperSecurityAutomationMonitoring & Alerts

SIGNL4 is a mobile alerting and on-call management platform that delivers push, SMS, voice, and email notifications to the right on-call team member within about a minute of an event. It provides inbound webhook and REST API integration for sending and resolving alerts, managing duty schedules, tracking acknowledgements, and automating on-call rotations. Connect SIGNL4 to Actionist and your agents can route enriched alerts from any monitoring or business tool to the correct on-call responder, automatically resolve incidents when the triggering condition clears, keep duty rosters in sync with your HRIS, and report on alert response performance across teams — all without anyone manually watching a dashboard or updating a schedule.

Try SIGNL4 with ActionistVisit SIGNL4
Average time saved
10 hours
per person · per month
≈ 1 workdays back

Eliminates manual work. Agents eliminate manual alert triage, on-call schedule maintenance, and dashboard monitoring by routing enriched alerts to the right person automatically and keeping duty rosters in sync with source-of-truth scheduling systems.

Schedule

What your SIGNL4 agent runs on autopilot

A week of scheduled jobs your Actionist agent will execute on your behalf.

28Scheduled jobs
7Agents at work
24/7Always on
Agents
Tue–Thu
Tue
Wed
Thu
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
Multi-app workflows

SIGNL4 × every other app you use

End-to-end automations that span multiple apps — each one a real business outcome.

6Workflows
9Apps spanned
~20 hrsSaved / week
6Personas served
For operations
Featured4 apps

Enriched infrastructure alert routing with auto-resolve

When a Datadog monitor transitions to ALERT, the agent checks who is on duty, enriches the payload with the linked Jira issue and current metric value, sends the alert to SIGNL4, and opens a Slack incident thread. When the monitor recovers, the agent resolves the SIGNL4 alert automatically — no manual close required.

~8 hrs

Time saved for your team — every week, on autopilot

The flow
Trigger·When a Datadog monitor enters ALERT state
Trigger
Step 1
D
Datadog
Detect monitor alert transition to ALERT state
read
Step 2
SIGNL4
Get User Duty Status for the on-call infrastructure team
read
Step 3
J
Jira
Look up any open Jira issue linked to the affected service
write
Step 4
SIGNL4
Send enriched alert with Datadog metric, Jira link, and severity
write
Step 5
Slack
Post incident thread to #incidents channel with alert details
write
Step 6
SIGNL4
Resolve Alert when Datadog monitor recovers to OK
Result
Send enriched alert with Datadog metric, Jira link, and severityPost incident thread to #incidents channel with alert detailsResolve Alert when Datadog monitor recovers to OK
The win
Saved per run
12 min
Runs / week
~40×
On-call engineers receive full context on their phone, not a raw metric
Driven byOperations Agent
ROI

Savings

What your team gets back — two angles: what you stop doing manually, and what that's worth.

Without Actionist

What you do manually today

With Actionist

What your agent runs for you

  • Sales
    45 min / week
    Manual deal monitoring and phone chasing

    Sales managers manually track deal timelines in the CRM, notice missed follow-ups at end of day, and send urgent Slack messages or make calls to find who is available to act.

    Sales Agent
    0 min
    Agent alerts on-duty rep automatically

    When a deal event meets a configured threshold — an SLA deadline, a contract expiry, a stalled renewal — the agent checks who is on duty and sends a SIGNL4 alert with full context. The rep receives an actionable push on their phone within about a minute.

  • Marketing
    30 min / week
    Manually checking dashboards for campaign anomalies

    Marketing managers log in to multiple ad platforms and analytics dashboards at irregular intervals to spot budget overruns or performance drops — anomalies discovered hours after they occurred.

    Marketing Agent
    0 min
    Agent sends campaign threshold alert to on-duty manager

    When a campaign budget or performance metric crosses a threshold, the agent sends a SIGNL4 alert to the on-duty marketing manager with campaign name, metric, and a dashboard link — actionable within about a minute of detection.

  • Customer Support
    40 min / week
    Reactive ticket queue monitoring

    Support team leads manually scan the ticket queue for approaching SLA deadlines, catching some before they breach but regularly discovering breaches only after the counter has run out.

    Customer Support Agent
    0 min
    Agent dispatches SLA breach warning before the clock runs out

    The support agent monitors SLA windows and sends a SIGNL4 alert to the on-duty engineer when a ticket reaches 80% of its response window — giving the team time to act before a breach is recorded.

  • Human Resources
    25 min / week
    Manual duty schedule maintenance in SIGNL4

    HR coordinators manually log in to SIGNL4 to update duty schedules after each leave approval or shift swap — a time-consuming process often done in bulk, introducing lag between approval and schedule update.

    Human Resources Agent
    0 min
    Agent keeps duty roster in sync with approved leave automatically

    When a leave request is approved in the HRIS, the HR agent updates the SIGNL4 duty schedule and sets the covering team member on duty — the on-call roster is accurate before the absence begins.

  • Finance
    35 min / week
    Email-based financial alert notification

    Finance teams rely on email notifications for payment failures and budget alerts — emails sit unread for hours during evenings and weekends, delaying response to time-sensitive financial events.

    Finance Agent
    0 min
    Agent alerts finance team on phone within a minute of financial event

    When a payment fails, a budget is exceeded, or a treasury alert fires, the finance agent sends an enriched SIGNL4 alert to the on-duty finance team member so the issue can be investigated immediately, not the next morning.

  • Operations
    60 min / week
    Manual alert triage and on-call assignment

    Operations managers manually review monitoring tool alerts, determine which team to contact, find the right on-call person by checking a spreadsheet rota, and then call or message them directly — adding 10–20 minutes to every incident.

    Operations Agent
    0 min
    Agent reads duty schedule and routes every alert to the right responder

    Before sending any alert, the operations agent reads the SIGNL4 duty schedule to confirm who is on call, enriches the payload from monitoring tools, sends the alert to the correct team, and tracks acknowledgement — all without manual triage.

  • Legal
    20 min / week
    Calendar-based deadline monitoring

    Legal teams track compliance deadlines via calendar reminders and email digests — reminders are easily dismissed during busy periods, and no one person has full visibility of all upcoming obligations in a shared inbox.

    Legal Agent
    0 min
    Agent pushes compliance deadlines to on-duty legal team's phone

    The legal agent monitors contract and regulatory calendars and sends SIGNL4 alerts to the on-duty legal team member for upcoming deadlines, so obligations surface on their mobile device — not buried in an email thread.

+ 100s of other SIGNL4 automations
Average time saved
26 hrs / person / month
Calculator

Calculate what your team saves

Team size
5 people
Hourly rate
$75 / hr
Hours saved / week
13
Hours saved / year
625
Annual ROI
$46,875

Based on SIGNL4's typical team usage — the visible tasks plus a few other automations the agent runs: ~2.5 hrs / person / week of admin work automated.

Connect

How to plug SIGNL4 into Actionist

Pick the connection method that suits your environment.

Connect via your SIGNL4 team webhook secret to enable alert sending and resolution. For duty schedule management and alert history, also add a REST API key from SIGNL4 Account → API Keys.

1
Copy your team webhook secret from SIGNL4

Log in to SIGNL4, open Teams, select your team, and open the Inbound Webhook section. The webhook URL contains your team secret — copy the alphanumeric string after the last slash.

2
Paste the secret into Actionist

Paste the webhook secret into the Team Webhook Secret field below and click Test connection. Actionist will send a test alert to verify the handshake.

3
Confirm the test alert on your phone

Check your SIGNL4 mobile app — the test alert should appear within about a minute. Acknowledge it to clear it from your queue.

Credentials you'll need
Team Webhook Secret*
SIGNL4 → Teams → select your team → Inbound Webhook — copy the team secret from the webhook URL
Actions

14 actions your agent can call

Read and write operations available to your Actionist agent.

Triggers

0 events your agent can react to

Events your agent watches for, and the actions it kicks off in response.

This app has no triggers yet.
FAQs

Questions about SIGNL4 + Actionist

How does Actionist connect to SIGNL4?
Go to the Apps tab, find SIGNL4, and click Connect. Paste your team's webhook secret (also called the team secret or team API key) — you'll find it in your SIGNL4 account under Teams → select your team → Inbound Webhook. Actionist runs a test alert to verify the handshake before any automated actions run. If you also want Actionist to manage duty schedules and acknowledge alerts programmatically, generate a REST API key in SIGNL4 Account → API Keys and add it in the second field.
What credentials does Actionist need and when does it need each one?
SIGNL4 uses two separate credentials depending on what you need to do. The inbound webhook secret lets Actionist send and resolve alerts into a specific team channel — it's the primary credential for alert delivery. The REST API key is needed for configuration-level operations: reading alert history, managing user duty status, updating on-call schedules, and reading team or user metadata. For most alert-routing automations you only need the webhook secret. Add the REST API key when you want agents to also manage duty rosters or read alert acknowledgement status.
Can SIGNL4 alert acknowledgements trigger actions in other apps?
Yes. SIGNL4 outbound webhooks fire when an alert is acknowledged, closed, or annotated by an on-call team member. You register your Actionist webhook receiver URL in SIGNL4 Account → Webhooks → Outbound. Once registered, any alert status change in SIGNL4 — an engineer acknowledging a PagerDuty-equivalent alert on their phone, for example — can trigger downstream actions in any of Actionist's 200+ connected apps: update a ticket status in Jira, close a row in Google Sheets, or post a resolution note to Slack.
What are the most common things agents do with SIGNL4?
The most common patterns are: (1) alert routing — monitoring tools or IoT sensors detect an anomaly, Actionist enriches the payload with context from other systems (a Jira issue, a PagerDuty escalation, a database query), then sends the enriched alert to the right SIGNL4 team; (2) duty-aware notifications — Actionist checks who is currently on duty via the REST API before dispatching so alerts only go to available staff; (3) alert lifecycle tracking — when SIGNL4 fires an outbound webhook on acknowledgement or closure, Actionist updates source systems and posts a team digest; (4) scheduled on-call roster sync — Actionist reads or updates duty schedules on a weekly cadence so schedules stay consistent with your HRIS.
What SIGNL4 plan do I need to use it with Actionist?
SIGNL4 offers a forever-free plan for up to 5 users and three paid tiers starting at around $9 per user per month (Notify & Connect) up to $29 per user per month (Maximize). The 30-day free trial includes the full Maximize plan for up to 10 users with no credit card required. Actionist connects to any paid or free SIGNL4 plan — webhook-based alert delivery works on all plans; REST API key generation requires at least the Notify & Connect tier.
How does SIGNL4 actually deliver alerts and how can Actionist enrich them?
SIGNL4 delivers alerts via push notification, SMS, voice call, and email, with automatic escalation if the first responder does not acknowledge within a configurable window. Actionist enriches the alert payload before sending — appending source-system links, severity labels, contextual notes from your CRM or monitoring tool — so the on-call engineer receives actionable information rather than a raw event dump. You control the alert payload fields (title, message, severity, priority, color coding, attachment URLs) through the Send Alert action parameters.
Can Actionist automatically resolve a SIGNL4 alert when an incident clears?
Yes. The Resolve Alert action calls the SIGNL4 REST API to close an open alert by its external ID (the ID your source system provided). This is useful in auto-remediation workflows: if a monitoring tool detects that a previously triggered condition has cleared, Actionist can send a Resolve Alert call to SIGNL4 at the same time so the on-call engineer's app shows the incident as resolved without manual intervention. The external ID must match the value passed when the original alert was sent.
Can I route alerts to different SIGNL4 categories or teams based on alert type?
Yes. SIGNL4 supports alert categories that control routing, color coding, and escalation rules within a team. The Send Alert action accepts a category parameter that maps to an existing SIGNL4 category. You can pre-create categories in SIGNL4 (for example: 'critical', 'warning', 'info', or department-specific categories) and then set the appropriate category in the Actionist action based on the source event's severity or type. Category routing in SIGNL4 determines which subset of on-call team members receive the alert.