--- title: Browserbase slug: browserbase url: "https://toolweight.com/options/browserbase" homepage: "https://www.browserbase.com" categories: browser-automation-apis last_verified: 2026-07-01 license: CC-BY-4.0 --- # Browserbase > Managed headless browsers for AI agents, with Stagehand as the SDK Browserbase runs Chromium sessions you connect to over CDP, plus the surrounding machinery agents actually need: reusable contexts, an embeddable live view, extension loading and a download API. Stagehand, its open-source TypeScript SDK, layers model-driven act/extract calls over ordinary Playwright so you can drop back to selectors whenever the model gets it wrong. The infrastructure itself is closed and priced by the browser-hour, with residential proxy bandwidth billed separately. ## Identity | | | | --- | --- | | Name | Browserbase | | Company | Browserbase, Inc. | | One-liner | Managed headless browsers for AI agents, with Stagehand as the SDK | | Site | https://www.browserbase.com | | Docs | https://docs.browserbase.com | | Repo | https://github.com/browserbase/stagehand | | Founded | 2024 | | Funding | Series B | | Open source | No | | Brand | https://toolweight.com/vendors/Browserbase | | Compared in | 1 | ## Where it is compared ### [Browser APIs](https://toolweight.com/compare/browser-automation-apis) Ranked **#2 of 13** on default weights. | Field | Value | Confidence | Verified | Source | Note | | --- | --- | --- | --- | --- | --- | | Anti-bot pass rate | - | Unknown | - | - | Panel not yet run. | | Stealth mode | ● | Vendor-claimed | 2026-07-01 | https://docs.browserbase.com/features/stealth-mode | - | | CAPTCHA solving | ● | Vendor-claimed | 2026-07-01 | https://docs.browserbase.com/features/stealth-mode | Automatic solving on advanced stealth; solve events surface in the session log. | | Residential proxy | metered-extra | Inferred | - | - | Vendor-managed residential egress billed per GB on top of browser-hours. | | Cold start | 1 s | Inferred | - | - | Vendor markets sub-second starts; not independently timed. | | CDP endpoint | ● | Vendor-claimed | 2026-07-01 | https://docs.browserbase.com/introduction | - | | Playwright | ● | Vendor-claimed | 2026-07-01 | https://docs.browserbase.com/welcome/quickstarts/playwright | - | | Puppeteer | ● | Vendor-claimed | 2026-07-01 | https://docs.browserbase.com/welcome/quickstarts/puppeteer | - | | Session persistence | ● | Vendor-claimed | 2026-07-01 | https://docs.browserbase.com/features/contexts | Contexts persist cookies and localStorage across sessions. | | Live view | ● | Vendor-claimed | 2026-07-01 | https://docs.browserbase.com/platform/browser/observability/session-live-view | - | | Session replay | ● | Vendor-claimed | 2026-07-01 | https://docs.browserbase.com/platform/browser/observability/session-replay | - | | Max concurrency | 50 sessions | Inferred | - | - | Approximate ceiling on the top self-serve tier; enterprise is higher. | | File downloads | ● | Vendor-claimed | 2026-07-01 | https://docs.browserbase.com/platform/browser/files/downloads | - | | Chrome extensions | ● | Vendor-claimed | 2026-07-01 | https://docs.browserbase.com/platform/browser/core-features/browser-extensions | - | | Browser regions | us-east, us-west, eu-central, ap-southeast | Inferred | - | - | No Australian region; ap-southeast is Singapore. | | Agent API | ◐ | Inferred | - | - | Stagehand and Director are the agent layer; Stagehand runs in your process, not theirs. | | MCP server | ● | Vendor-claimed | 2026-07-01 | https://docs.browserbase.com/integrations/mcp/introduction | - | | Human handoff | ◐ | Inferred | - | - | Live view supports takeover, but there is no formal pause/resume primitive. | | Pricing model | per-hour | Inferred | - | - | - | | Per browser-hour | $0.1 /browser-hour | Inferred | - | - | Approximate blended rate on paid self-serve plans with bundled hours; excludes proxy GB. | | Free tier | ● | Vendor-claimed | 2026-07-01 | https://www.browserbase.com/pricing | - | | GitHub stars | 15,000 | Inferred | - | - | Stagehand repo, rounded. | | Funding stage | series-b | Community-reported | - | - | US$40M round reported mid-2025. | | Open-source core | ○ | Inferred | - | - | Stagehand is open source; the browser infrastructure is not. | | Positioning | Browser infrastructure for AI agents and automations | Inferred | - | - | - | | Launched | 2024 | Inferred | - | - | - | **Verdict.** The most complete developer surface in the category and the one to beat for agent work, contexts, live view, extensions and downloads all exist and all work. You pay a premium for that, and you still buy proxy bandwidth separately, so it is not the cheap option for scraping. ## Alternatives - [Airtop](https://toolweight.com/options/airtop), Natural-language browser API, describe the page, skip the selectors - [Anchor Browser](https://toolweight.com/options/anchor-browser), Cloud browsers built around authenticated sessions and human takeover - [Apify](https://toolweight.com/options/apify), Actor platform for scraping and agents, with Crawlee as the open-source core - [Bright Data Browser API](https://toolweight.com/options/bright-data-browser-api), CDP browsers on a 70M+ residential IP network with challenge handling built in - [Browserless](https://toolweight.com/options/browserless), Self-hostable headless Chrome service; BrowserQL for bot-heavy sites - [Cloudflare Browser Rendering](https://toolweight.com/options/cloudflare-browser-rendering), Puppeteer and Playwright bindings for Workers, plus REST render endpoints - [Hyperbrowser](https://toolweight.com/options/hyperbrowser), Agent-first browsers with hosted scrape, crawl and CUA endpoints - [Kernel](https://toolweight.com/options/kernel), Fast-starting browsers plus a runtime for deploying browser agents - [Self-hosted Playwright](https://toolweight.com/options/playwright-self-hosted), The baseline: run Chromium in your own container and own everything - [ScrapingBee](https://toolweight.com/options/scrapingbee), One-call HTML API with JavaScript rendering and premium proxy tiers - [Steel.dev](https://toolweight.com/options/steel-dev), Open-source browser API for AI agents, hosted or self-run - [ZenRows](https://toolweight.com/options/zenrows), Scraper API plus a CDP scraping browser on a shared residential pool ## Licence and attribution Data from toolweight (https://toolweight.com), licensed CC-BY-4.0. - Licence: [CC-BY-4.0](https://creativecommons.org/licenses/by/4.0/) - Canonical HTML: https://toolweight.com/options/browserbase - Machine-readable: https://toolweight.com/options/browserbase.md · https://toolweight.com/api/v1 · https://toolweight.com/mcp - toolweight takes no affiliate revenue and sells no placements. 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