Browserbase
Browser infrastructure that lets AI agents use the web
About Browserbase
Browserbase runs the browsers your agent needs so you do not have to. The pitch is that the web is the interface most systems actually expose, and an enormous amount of useful work sits behind a login and a form rather than behind a documented API that returns JSON.
Running headless browsers yourself is deceptively expensive. They leak memory, they get blocked, sessions expire, pages change, and concurrency means managing a fleet rather than a process. Browserbase turns that into a service with three access levels depending on how much control you need: a Search API for finding relevant pages from a query, a Fetch API for turning any URL into HTML, JSON or Markdown, and full browser-as-a-service when the agent genuinely needs to click through an interface and complete a task. That layering is the practical part, because most agent tasks do not need a real browser and paying for one when a fetch would do is waste. Pricing has a real free plan for evaluation, then $20 and $99 tiers, with usage rates on top for browser hours and API calls, and proxies costing extra. Be aware that automating sites you do not own sits in genuinely contested territory legally and in terms of service, and that is your call to make rather than something the tool decides for you.
You call the API to start a session and drive it with standard automation tooling, or you skip the browser entirely and use the higher-level endpoints. Search takes a query and returns relevant sites. Fetch takes a URL and hands back clean HTML, JSON or Markdown, which is often all an agent needed. When the task requires interaction, logging in, filling a form, clicking through a flow, you get a real browser that behaves like one, with the session infrastructure, concurrency and stability handled for you. Billing follows browser hours and API call volume, with proxy usage priced separately.
- •Three Levels of Access - Search, Fetch and full browser, so you are not paying for a browser when a fetch would do
- •Fetch to Markdown - Any URL converted to clean HTML, JSON or Markdown for direct model consumption
- •Managed Concurrency - Fleet, sessions and stability handled rather than being your operational problem
- •Real Interaction - Agents can log in, fill forms and complete multi-step flows, not just read pages
- •Proxy Support - Available where needed, priced separately and worth accounting for
- •Free Plan for Evaluation - 3 concurrent browsers and 1 browser hour before committing
Developers building agents that must reach systems with no usable API, which in practice is most interesting real-world automation. It suits teams who have already tried self-hosting Playwright at scale and concluded the maintenance is not their business. The layered APIs make it reasonable for cheap read-only tasks as well as full interaction. Consider the terms of service of whatever you automate before building on it, and if your targets all expose clean APIs, call those instead and skip this entirely.
Pricing
$0 - $99/mo
- Free Plan$0/mo
- Developer Plan$20/mo
- Startup Plan$99/mo
- Scale PlanContact sales
From the vendor pricing page, 2026-09-21
