Browserbase API
Provides cloud-hosted browser infrastructure for AI agents, offering managed Chromium sessions accessible via Playwright or Puppeteer with session recording, proxies, and CAPTCHA solving.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Browser sessions run in isolated sandboxed containers. API key must be kept server-side. No scope granularity — a single key grants full session management access.
⚡ Reliability
Best When
Your AI agent needs reliable, scalable browser automation from a serverless or containerized environment without managing browser binaries, proxies, or anti-bot infrastructure.
Avoid When
Your scraping targets are static pages with no JavaScript rendering, making the added latency and cost of a cloud browser unjustifiable.
Use Cases
- • Run AI web research agents that navigate and extract data from JavaScript-heavy sites without managing browser infrastructure
- • Execute multi-step web automation workflows (form fills, logins, purchases) from serverless agent environments
- • Scrape dynamic content behind authentication by maintaining persistent browser sessions across agent turns
- • Replay and debug agent browser sessions using built-in session recording and live view
- • Distribute web automation tasks across parallel cloud browser instances for high-throughput agent pipelines
Not For
- • Simple static HTML scraping where a plain HTTP client is sufficient and faster
- • Long-running persistent browser sessions measured in hours rather than minutes per task
- • Teams that need fully on-premise browser automation with no cloud dependencies
Interface
Authentication
API key used to create sessions via REST; the resulting session WebSocket URL is then passed to Playwright/Puppeteer connect(). Key must be kept server-side and never exposed to browsers.
Pricing
Billed per browser session minute. Concurrency limits apply per plan tier. Proxy bandwidth may incur additional costs.
Agent Metadata
Known Gotchas
- ⚠ Sessions must be explicitly closed via the API or SDK after task completion; orphaned sessions count against concurrency limits and billing even if the agent process exits
- ⚠ The WebSocket connection URL expires after a short window — agents must connect to the browser immediately after session creation, not store the URL for later use
- ⚠ Anti-bot detection can still block sessions even with Browserbase proxies; agents should implement retry logic with different proxy regions rather than assuming stealth is guaranteed
- ⚠ Session context (cookies, localStorage) is not persisted between sessions by default; agents needing authenticated state must use the context API to save and restore browser profiles
- ⚠ Playwright exceptions thrown inside a remote session may not include full stack traces; instrument agent code with explicit error checkpoints rather than relying solely on exception messages
Alternatives
Full Evaluation Report
Detailed scoring breakdown, competitive positioning, security analysis, and improvement recommendations for Browserbase API.
Scores are editorial opinions as of 2026-03-06.