On August 25, 2026, Vercel announced two new adapters for its Chat SDK specifically designed for XChat and Notion, expanding the reach of bots and AI assistants from a single codebase into end-to-end encrypted environments and collaborative documents.
End-to-End Encrypted Messaging with XChat
With the XChat adapter, developers can build bots that participate in end-to-end encrypted (E2EE) 1:1 or group chats. The adapter automatically handles key management, encryption workflows, and digital signature verification. Bots can also proactively message users, provided the recipient has established an encrypted chat and follows the bot.
Because XChat lacks native Markdown rendering support, the adapter automatically converts formats for compatibility: - URLs and @mentions are converted into clickable links. - Tables are formatted into ASCII code blocks. - UI cards are transformed into plain text with link previews.
Real-time response streaming is supported via a continuous message-editing mechanism.
Collaborative Workspace Integration with Notion
Meanwhile, the Notion adapter allows existing AI agents deployed across Slack, Discord, GitHub, Microsoft Teams, or WhatsApp to participate in comment threads directly on Notion pages without maintaining a separate codebase. The system automatically maps each Notion page to a channel and each comment thread to an equivalent discussion thread.
From a technical perspective, the Notion adapter supports @mentions, message editing, conversation history retrieval, and up to three file attachments. By default, bots respond when tagged, though developers can configure keyword triggers or listen to all new comments in workspaces lacking mention support.
Because Notion does not yet support interactive buttons, modals, or reactions, interactive cards are rendered back into Markdown. Discussions can only be initiated at the page or block level rather than on inline text segments, and conversation history retrieval is limited to open, unresolved comments.