Node.js SDK

Lexmount Node.js SDK is the typed JavaScript and TypeScript client for browser sessions, persistent contexts, extensions, stored downloads, regions, and CDP connections.

Install

npm install lexmount@0.7.0

Node.js 18 or later is required. Install playwright separately when your application connects to a browser.

Current browser names

Keep normal and light in code. The product UI displays them as Chromium and Moli.

What the SDK covers

• Async session creation, status polling, list/get/close, targets, and stored downloads
• Region catalog discovery and explicit region selection
• Persistent context create/list/get/fork/delete and emergency force-release
• Extension upload/list/get/delete and session mounting
• Custom images, window size, custom or official proxy, and LightMount options
• Structured errors, logging, CDP helpers, and integrated-auth callbacks
• Browser Agent: create saved Agents, run tasks, inspect results, and cancel Runs (SDK 0.7.0).

Configuration

export LEXMOUNT_API_KEY='<your-api-key>'
export LEXMOUNT_PROJECT_ID='<your-project-id>'

# Optional; defaults to the global COM API
export LEXMOUNT_BASE_URL=https://api.lexmount.com

Use https://api.lexmount.cn to explicitly select the CN service. Constructor options take precedence over environment variables. Never commit an API Key.

Package and examples

• Node.js SDK (npm)
• Runnable Node.js quickstarts

Continue with Quick Start, Capabilities, or Examples.

• SDK local proxy: reach internal sites through the SDK machine's network and DNS.