Any Telegram message can become an app, and bots can read TON wallet balances.

Telegram rolled out Bot API 10.4, letting any message become an interactive mini-app under 4 KB that loads instantly with native rendering, built-in payments, and viral sharing mechanics, founder Pavel Durov announced. Bots and AI agents can now send native HTML widgets inside message bubbles with dynamic layouts, interactive elements, and in-place updates, and the same interface can be reused across multiple messages. On the TON side, widgets integrate with Telegram's native wallet to let users sign or be notified of transactions, while bots can read wallet cards including balances and NFT stickers and detect wallet transfer service messages. Button taps can trigger temporary replies visible only to the clicker, and Premium users can set up to two bot usernames ending in agent, ai, app, or game. The update matters because it turns Telegram's messaging layer into a lightweight distribution channel for wallet-aware mini-apps, potentially deepening TON wallet usage; what to watch next is developer adoption of the sub-4 KB widgets and whether bot-readable balances drive more on-chain activity.