- What it is
- A TypeScript SDK for chat bots across Slack, Microsoft Teams, WhatsApp, Telegram, Discord, GitHub, Linear and more. Open source, MIT licence, free for commercial use.
- WhatsApp
- The official adapter is WhatsApp Business Cloud. Baileys and Zaileys are community adapters on the unofficial WhatsApp Web API. We use only the official one.
- Adapters
- Three tiers: official (maintained by Vercel), vendor-official and community. Redis and PostgreSQL adapters keep the bot’s state.
- AI replies
- Built-in AI SDK streaming. When an agent posts, edits or deletes, writes need approval by default.
- Human approval
- A durable workflow can pause until a person approves the step in chat.
- Per platform
- Not every feature works on every chat app. Vercel lists support per platform.