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Monitor Slack for changes

Watch any Slack page for the things that matter, and act the instant it changes. Monitors check as fast as every 10s on Scale; see the per-plan floors below.

Build a Slack monitor How Watch-and-Act works
Writ runs on your own accounts, with your own credentials and data, on sites you are authorized to use.
●Succeedinglast checked 8s ago

Watching on Slack

  • ◍analytics figure change
  • ◍new member
  • ◍setting change
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create

Build a Slack monitor in minutes

Point the recorder at a Slack page, mark analytics figure change or any selector, and Writ builds a Monitor that checks on a schedule and fires a workflow on a change, running on your own account, on a page you are authorized to use.

  1. 1
    Open the Slack page in the recorder

    Point the recorder at the Slack page you care about and mark what to watch: analytics figure change, a CSS selector, or a visual baseline. Writ renders Slack in real Chromium, so it sees values that load with JavaScript.

  2. 2
    Set the schedule and threshold

    Choose how often Writ checks (as fast as every 10s, 10s on Enterprise) and what counts as a change worth acting on.

  3. 3
    Connect a workflow to the change

    On a real change, an automation trigger runs a workflow: notify a channel, log the new value, or take an action on your own authenticated Slack account.

Build a Slack monitor See how it works

See how Watch-and-Act works, build on workflows, or search for another site. Free to start. See pricing.

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watch

Track the Slack changes that matter

These are the signals teams most often watch on Slack. Each can trigger a workflow when it changes.

◍ analytics figure change◍ new member◍ setting change
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types

Three ways Writ monitors Slack

Content, availability, and dynamic values, all rendered in a real browser.

◈Content changeTrack a selector, the full page, or a visual baseline and get notified the moment Slack changes what you're watching.
◈Uptime & SSLCheck that a Slack page or your own Slack integration is reachable, with response-time and certificate-expiry alerts.
◈JS-rendered valuesWrit renders Slack in real Chromium, so it sees prices, stock, and status that load dynamically, not just the raw HTML.
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frequency

How fast Writ checks Slack, by plan

A faster cadence is a paid capability: a lightweight HTTP check costs far less than a full JS render, so the tightest intervals live on higher plans.

Plan Static page Dynamic (JS-rendered)
Free 5 min 15 min
Starter 60s 10 min
Growth 30s 5 min
Scale 10s 2 min

Enterprise checks down to 10s. Local and BYO runs carry no compute charge; cloud checks are metered from your plan’s included usage, and past it from your wallet.

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flow

From a Slack change to an action in seconds

A Monitor detects the change; an automation trigger runs your workflow.

  1. 1
    Watch Slack

    Pick the Slack page and the change you care about: analytics figure change, a selector, or a visual baseline.

  2. 2
    Detect the change

    Monitors check as fast as every 10s (10s on Enterprise). On a real change, an automation trigger fires.

  3. 3
    Act in seconds

    The trigger runs a workflow: notify a channel, extract the new value, or take an action on your own Slack account.

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Notify any channel. Route a Slack change to any of six providers (Email, SMS, WhatsApp, Signal, Pushover, or a custom webhook), or run a full workflow that takes an action on your own account.

Built on the same engine as the recorder and workflows.

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other ways

Other ways to work with Slack

Turn Slack into an APICall Slack as a REST endpoint.REST Slack MCP toolsExpose Slack as MCP tools for your agent.For AI agents Automate SlackBuild Slack actions without an API.Automation
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faq

Monitoring Slack questions

How fast can Writ check Slack?
It depends on your plan. Static-page checks run every 5 min on Free, 60s on Starter, 30s on Growth, and 10s on Scale; JS-rendered pages are slower (15 min down to 2 min), and Enterprise checks down to 10s. A detected change fires the connected workflow in seconds, so you act on Slack changes almost as they happen.
Is there a ready-made Slack monitor I can install?
Point the recorder at the Slack page, mark what to watch (analytics figure change, a selector, or a visual baseline), and Writ builds a Monitor that checks on a schedule and fires a workflow on a change. It takes minutes.
What can I monitor on Slack?
Common targets include analytics figure change, new member, setting change. You can watch a specific element, the whole page, or a visual baseline, and Writ renders Slack in a real browser so it catches values that load with JavaScript.
What happens when Slack changes?
A change becomes an automation trigger that runs a workflow you choose: send a notification through one of six providers, extract the new data, push it to a destination, or take an action on your own authenticated Slack account.
Is it allowed to monitor Slack?
Use Writ on your own Slack workspace. Authorized automation of your own account. These are Monitors and change detection on pages you are authorized to access. Writ runs on your own accounts, with your own credentials and data, on sites you are authorized to use.
rec ▸ ready ●

Watch Slack. Act the instant it changes.

Set up a Monitor, connect a workflow, and let Writ do the watching. Get started free.

Get started