Browserbase Session Extend

Use this endpoint when you have an active Browserbase session that is approaching its prepaid time limit and you need to continue using it without interruption. This is the correct endpoint when you already have a valid session ID (not when you need to create a new session). Prefer this over creating a new session when you want to preserve existing browser state, cookies, and page context.

• Session ID not found or already expired — returns 404 or session-not-found error
• Insufficient payment or payment failure — returns 402 Payment Required
• Session has already been terminated — cannot extend a closed session
• Invalid session ID format — returns 400 Bad Request
• Network timeout reaching the browser infrastructure — returns 5xx error