Yes, if the agent can use a browser the way a person does. Kaer and Manus both do this work in a browser. The useful differences are where that browser runs and whose logins it uses.
What does an agent do on a site with no integration?
Kaer's guide to working a website with no integration says it opens the site in its own browser, does the steps you ask for, and hands control back to you for signing in, paying and confirming. Manus's cloud browser documentation says that when a task needs web access, Manus opens its cloud browser and goes to the relevant websites.
Where does the browser run, and whose logins does it use?
Manus offers two modes: a cloud browser that Manus runs, and Browser Operator, an extension that works in your own browser. The table sets them beside Kaer.
| Question | Kaer | Manus cloud browser | Manus Browser Operator |
|---|---|---|---|
| Where it runs | Its own sandboxed machine, kept apart from your computer | An isolated, sandboxed cloud environment | Your local desktop browser |
| Logins | Signs in with logins you have saved; you type a site password yourself | Manus doesn't store your passwords | Uses your existing logins and sessions |
| Activity record | Each task keeps the steps the agent took and the tools it used | Recent Cloud Browser activity is listed in its settings | All actions are logged |
Each side says something about where the work happens. Kaer's computer page says that if something goes wrong on a website, it goes wrong on Kaer's machine, not yours. Manus's cloud browser documentation says it runs from network addresses that are not home connections, so some sites may add verification, and it suggests its local browser mode for security-sensitive accounts.
What happens when the site asks for a password or a code?
On Kaer, when a site asks for a password, a one-time code or card details, the footer says it is your turn: you click Take over, type the details, then Hand back. Kaer can't see or keep a password you type. Manus's cloud browser prompts you to take over for SMS codes, CAPTCHA and multi-factor authentication, then you hand control back.
Kaer's supplier portal ordering use case says a portal that asks for a code at each sign-in still needs a person at that step, because only you receive it. As advice: plan for that before you put a run on a schedule.
Can you watch it work, and stop it?
Yes, on both. In Kaer, a live browser opens beside the chat, with the site's address and a Live badge, and you see Kaer's cursor and every step as it happens. The browser closes when the job is done, or after ten minutes with nothing to do; ask again and it opens a fresh one.
Manus's cloud browser documentation says you can watch Manus navigate websites in real time. With Browser Operator, Manus asks for permission to control your browser when a task needs web access, and you can stop the agent at any time by closing the browser tab.
What does Kaer do at the step that spends money?
Kaer's computer page says it stops to ask before it pays for anything, and a click its browser recognises as a payment is held until you approve it. The supplier page adds a limit: if a portal's final button only says Submit, Kaer may not read it as an order, so tell it to stop before that button or add an approval step.
What does a supplier order look like, step by step?
This is a hypothetical example: a five-person print studio that reorders paper from a supplier portal once a month, with a brief along these lines:
Log in to the supplier portal, repeat last month's order, change the paper line to 40 boxes, and stop before the button that places the order.
- Start a chat in Kaer and brief it the way you would a colleague, naming the site.
- Type your sign-in when the portal asks for it.
- Watch the steps in the live browser that opens beside the chat.
- Approve the final click, or check the order yourself first.
What should you check before you start?
Three points from Kaer's supplier portal page are worth settling first. Your supplier does not need to do anything: Kaer signs in the way your team does, on the site your supplier already runs. Read the portal's terms of use, since some suppliers restrict automated access. And changing the password on the portal ends Kaer's access.
Does it work on every website?
Kaer's guide says it works on sites that work in an ordinary browser. Some sites block automated browsers outright; when one does, Kaer tells you and offers you control rather than trying to get past it. Manus's Browser Operator documentation says some websites with aggressive anti-bot measures may require manual intervention.
Which one fits a small business?
Choose by where you want the browser to run. If you want the work kept off your own computer, Kaer runs it on its own machine, which is destroyed when the run ends. If you want the agent inside the browser you already use, signed in to your sites, Manus's Browser Operator is the mode its documentation describes for that.
As advice rather than a claim from either vendor: give both the same job on a site you already use and see which setup your team is comfortable with.
Kaer pages read on 10 November 2026: the guide to working a website with no integration, the Kaer computer page, the security page and the supplier portal ordering use case. Manus pages read the same day: its cloud browser documentation and its Browser Operator documentation. No prices are compared.
Frequently asked questions
Does Kaer solve captchas?
No. Kaer doesn't solve or get around security checks. It hands you the browser, you complete the check, and you hand back.
Which Kaer plans include its own browser?
Kaer's own computer and browser come with paid plans.