OncallRelay
Add to Slack

Nobody misses who's on call. Not this week, not next.

Oncall Relay reads your PagerDuty schedule and tags the right people in Slack — automatically, on a schedule you set, with upcoming rotations included.

Runs as a step inside Slack's own Workflow Builder. No dashboard to log into.

#incidents
Oncall Relay APP
PRIMARY
Now: @priya
Rotation 2: @devon — Thu 9:00 AM PST
LEVEL 2 (BACKUP)
Now: @sam
What it does

More than "who's on call right now"

Most tools stop at the current shift. Oncall Relay shows the full picture — every level, every timezone, before the handoff even happens.

Every escalation level, not just primary

See who's covering as backup too, not just who's first in line — most tools only show the primary on-call.

Times in their timezone

"Starts Thu, 9:00 AM" means their morning, not yours. No more mental timezone math for distributed teams.

A heads-up before the handoff

DM the incoming on-call person a configurable amount of time before their shift starts — so nobody finds out they're on call from an incident.

How it works

Three steps, then it runs itself

01

Connect PagerDuty

Authorize read-only access to your on-call schedules. Oncall Relay never sees or stores your PagerDuty credentials — Slack holds the connection.

02

Pick a schedule, a channel, and how far ahead to look

Add the step to a Slack workflow. Choose the PagerDuty schedule, the channel to post in, and how many upcoming rotations to include (free plans: 1 schedule, current + next rotation — Pro removes both limits). Pro plans can also turn on direct DMs to whoever's tagged.

03

Set it and let it run

Slack's own scheduler triggers the post — daily, weekly, whatever cadence fits your team. No servers, no cron jobs to maintain.

04

Optional: add a handoff reminder

Pro plans can add a second step that DMs the incoming on-call person a configurable amount of time before their shift starts — 15 minutes, an hour, a full day ahead, whatever fits.

Pricing

Free to try. Cheap to keep.

Free
$0
  • 1 schedule
  • Current + next rotation
  • Primary on-call only
  • Channel posts
Add to Slack
Pro
$12/month
  • Unlimited schedules
  • Unlimited rotation lookahead
  • All escalation levels (primary + backup)
  • Channel posts + direct DMs
  • Configurable handoff reminders
Add to Slack

Add Oncall Relay to your workspace

Takes about two minutes. You'll connect PagerDuty and pick a channel from inside Slack.

Add to Slack