Browserbase · JSON Structure

Browserbase Session Structure

The Browserbase Session object representing a managed cloud Chromium browser instance that automation clients drive over CDP or via SDKs.

Type: object Properties: 12
Headless BrowserBrowser InfrastructureWeb AutomationAI AgentsWeb ScrapingStagehandPlaywrightPuppeteerWeb SearchWeb FetchModel GatewayMCPSession RecordingAgent Identity

Session is a JSON Structure definition published by Browserbase, describing 12 properties.

Properties

id status connectUrl seleniumRemoteUrl signingKey projectId region keepAlive createdAt updatedAt startedAt expiresAt

Meta-schema:

JSON Structure

Raw ↑ 
{
  "name": "Session",
  "description": "The Browserbase Session object representing a managed cloud Chromium browser instance that automation clients drive over CDP or via SDKs.",
  "type": "object",
  "properties": {
    "id": {
      "type": "string",
      "description": "Unique identifier for the session.",
      "example": "ses_abc123XYZ"
    },
    "status": {
      "type": "string",
      "description": "Lifecycle state of the session.",
      "enum": ["PENDING", "RUNNING", "ERROR", "TIMED_OUT", "COMPLETED"],
      "example": "RUNNING"
    },
    "connectUrl": {
      "type": "string",
      "description": "WebSocket URL used by Playwright/Puppeteer/Stagehand to connect to the session.",
      "example": "wss://connect.browserbase.com?apiKey=...&sessionId=ses_abc123XYZ"
    },
    "seleniumRemoteUrl": {
      "type": "string",
      "description": "Selenium-compatible remote driver URL for the session."
    },
    "signingKey": {
      "type": "string",
      "description": "Short-lived signing key used for reconnects."
    },
    "projectId": {
      "type": "string",
      "description": "Project the session belongs to.",
      "example": "proj_abc123"
    },
    "region": {
      "type": "string",
      "description": "Geographic region the session runs in.",
      "example": "us-west-2"
    },
    "keepAlive": {
      "type": "boolean",
      "description": "Whether the session was created with keepAlive enabled."
    },
    "createdAt": { "type": "string", "format": "date-time" },
    "updatedAt": { "type": "string", "format": "date-time" },
    "startedAt": { "type": "string", "format": "date-time" },
    "expiresAt": { "type": "string", "format": "date-time" }
  }
}