Browser Use builds browser agents. Its team chose Composio because it was easy to integrate and came with over a thousand hosted integrations, so users can hand structured work to an API instead of asking a browser agent to click through it.
Browser agents and APIs live disjointly
Reagan describes one big unsolved problem with browser agents: knowing when to call an API. If there is an API for Google Calendar or Google Sheets, an agent should use it, because a browser agent is less deterministic, can click around randomly and cause more errors, and is slower.
Building those integrations in-house is tedious. Setting up something like a Google OAuth client means obtaining a client ID and configuring a set of variables for every service. Reagan's back-of-envelope estimate is about 10 minutes per integration, which across a thousand integrations adds up to roughly 10,000 minutes.
Easy to integrate, with over a thousand integrations included
Browser Use opted for Composio largely because of how easy it was to integrate, and because Composio comes with over a thousand integrations. The team did not have to build or host any of them by hand.
The catalog also surfaced tools the team had not considered. Reagan says they had not even thought a GitHub integration could be useful, and it is now one of Browser Use's more popular integrations.
Users combine browser agents with real APIs
Reagan's own favourite use case pointed an agent at his personal website, his blog posts and his Google Drive and Google Docs to compile a reference document of his writing practices, which he now uses on the platform.
He also saw a Browser Use user scrape job listings into a Google Sheet, the kind of workflow that pairs browsing with a structured destination the agent can write to through an API.
