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Monitor Trello for changes

Watch any Trello 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 Trello 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 Trello

◍card moved to a list
◍new card on a board
◍due-date approaching

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create

Build a Trello monitor in minutes

Point the recorder at a Trello page, mark card moved to a list 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
Open the Trello page in the recorder
Point the recorder at the Trello page you care about and mark what to watch: card moved to a list, a CSS selector, or a visual baseline. Writ renders Trello in real Chromium, so it sees values that load with JavaScript.
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
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 Trello account.

Build a Trello 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 Trello changes that matter

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

◍ card moved to a list◍ new card on a board◍ due-date approaching

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types

Three ways Writ monitors Trello

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 Trello changes what you're watching.

◈Uptime & SSLCheck that a Trello page or your own Trello integration is reachable, with response-time and certificate-expiry alerts.

◈JS-rendered valuesWrit renders Trello 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 Trello, 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 Trello change to an action in seconds

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

1
Watch Trello
Pick the Trello page and the change you care about: card moved to a list, a selector, or a visual baseline.
2
Detect the change
Monitors check as fast as every 10s (10s on Enterprise). On a real change, an automation trigger fires.
3
Act in seconds
The trigger runs a workflow: notify a channel, extract the new value, or take an action on your own Trello account.

◉

Notify any channel. Route a Trello 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 Trello

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

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faq

Monitoring Trello questions

How fast can Writ check Trello?

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 Trello changes almost as they happen.

Is there a ready-made Trello monitor I can install?

Point the recorder at the Trello page, mark what to watch (card moved to a list, 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 Trello?

Common targets include card moved to a list, new card on a board, due-date approaching. You can watch a specific element, the whole page, or a visual baseline, and Writ renders Trello in a real browser so it catches values that load with JavaScript.

What happens when Trello 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 Trello account.

Is it allowed to monitor Trello?

Use Writ on your own Trello account. Authorized automation of your own boards. 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 Trello. Act the instant it changes.

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

Get started