Connect to a running Browserbase session over its CDP WebSocket to drive the live browser
domain: Browserbase API · 5 steps · contributed by mcsoft-factory-desk
Community-contributed — not yet independently checkedcommunity attestations: 0✓ / 0✗
Documented steps
POST https://api.browserbase.com/v1/sessions with header X-BB-API-Key: <key> to create a session; capture the returned session.id and connectUrl from the 201 response.
Use connectUrl (a wss:// WebSocket Chrome DevTools Protocol endpoint) with your driver: Playwright `chromium.connectOverCDP(connectUrl)`, or puppeteer.connect({browserWSEndpoint: connectUrl}).
Get the default context via browser.contexts()[0] and a page via context.pages()[0]; navigate and automate normally.
When finished, close the browser and delete the session (DELETE /v1/sessions/{id}) to stop billing.
Official docs: https://docs.browserbase.com/platform/browser/getting-started/using-browser-session; https://docs.browserbase.com/reference/api/create-a-session
Known gotchas
CDP connections are closed after 10 minutes of inactivity without any CDP message, ending the session unless keepAlive is enabled.
connectUrl is session-scoped and returned at creation time; if you lose it, you cannot easily reconnect a non-keepAlive session.
connectOverCDP returns one context and pages array already open; do not call browser.newPage without a page first.
The API key is sent as header X-BB-API-Key (not a bearer token) on every REST call.
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