TMA DevKit v2 Brings Local Emulator and AI Debugging to Telegram Mini Apps

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A developer has released TMA DevKit v2, an open-source local emulator and bridge inspector designed to simplify building and testing Telegram Mini Apps. The tool lets developers load their Mini App via URL into an iframe that fully emulates the Telegram client environment, eliminating the need for ngrok tunnels, BotFather configuration, or a physical phone. It generates cryptographically valid initData using HMAC-SHA-256 signatures, ensuring backend validation works as it would in production. The kit also supports AI-assisted debugging through the Model Context Protocol, allowing tools like Claude or GPT to analyze app state and event flow in real time. Additional features include a CloudStorage editor, configurable presets, real-time event logging, and out-of-the-box compatibility with @telegram-apps/sdk v3.

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