Product / UX / Agent tools & protocols

Browserbase

Cloud-hosted headless browsers built for AI agents, handling authentication persistence, CAPTCHA solving and anti-bot detection that self-hosted Playwright does not manage easily. It exposes a Browser API, a Search API, a Fetch API, Functions for deploying and scheduling agents, and a Model Gateway, and it maintains Stagehand, a browser agent SDK, alongside.

The scored product is the managed platform, not the Stagehand SDK beside it. Browserbase publishes no usage figure of its own, so adoption stands on Stagehand's downloads as a proxy and is discounted for that. Verified 2026-08-13 via docs.browserbase.com.

Openness

1 high confidence

1.0

license: Proprietary(API-only managed browser infra)
source: closed(cloud browser fleet/session infra)
note: companion Stagehand SDK IS open source (Apache/MIT) but the Browserbase service being scored is the closed managed platform

The product scored here is the managed browser-infrastructure service, which is closed and proprietary. The companion Stagehand SDK is open source, but it is a client to the service rather than the service itself, so it does not make the scored platform open.

https://docs.browserbase.com/ recorded 2026-08-13
One API key across a hosted Browser API, Search API, Fetch API, Functions and Model Gateway. Stagehand documented as a separate SDK - "The SDK for browser agents. Natural language selectors, self-healing actions, and caching at scale ... Built by Browserbase" - on its own docs site. No self-hosting option for the platform itself.

Adoption

3 medium confidence

3.0

No primary usage figure for the Browserbase managed service itself was published. Best primary proxy is its own SDK, Stagehand, which Browserbase docs cite at 22k GitHub stars and 700k+ weekly downloads, a strong open-SDK adoption signal that approximates the platform's developer reach (100K-1M band). The closed service's own user/session count is undisclosed. 700k weekly downloads is roughly 3M monthly, which would band at 4 if it were the platform's own figure; it is a companion SDK standing in, so the level stays at 3 with the discount that substitution deserves.

https://docs.browserbase.com/ recorded 2026-08-13
"The SDK for browser agents. Natural language selectors, self-healing actions, and caching at scale. 22k GitHub stars, 700k+ weekly downloads. Built by Browserbase." No session, request, user or customer figure for the Browserbase platform itself appears anywhere in the docs.

Capability

4 medium confidence

4.0

Broad browser-automation-for-agents feature set (control + search + fetch + deploy + model routing) plus a capable agent SDK; near-frontier among agent browser/scrape platforms.

https://docs.browserbase.com/ recorded 2026-08-13
Browser API, Search API, Fetch API, Functions and Model Gateway documented as the platform surface; Stagehand's natural-language selectors, self-healing actions and caching at scale.

Verified 2026-08-13