Rostee: AI Chief of Staff on WhatsApp & Telegram
AI Chief of Staff that runs founders' days on WhatsApp and Telegram: morning brief, task follow-up, team coordination and evening recap, via text or voice message. No app to download.
- Agent tools
- 40
- Channels
- WhatsApp + Telegram
- Adoption
- 500+ founders · 14 countries
Context
Entrepreneurs juggle five tools to manage tasks, meetings and ideas, and spend more time organizing than executing. Rostee was born to run everything from a simple conversation.
The challenge
Build an AI agent able to understand text and voice messages in natural language, infer the right action among dozens (create a task, schedule a meeting, capture an idea, postpone a deadline...) and proactively follow up, on WhatsApp and Telegram, respecting each user's language and timezone.
The solution
I built a LangGraph agent (Claude Sonnet via OpenRouter, Whisper audio transcription) with 40 tools, wired to WhatsApp (Evolution API) and Telegram. Hono + Supabase backend, Stripe payment with automated onboarding, and scheduled routines: morning briefing, midday check-in and evening recap with productivity score and streak.
Key features
- 01Multi-channel conversational agent (WhatsApp + Telegram), text and voice
- 0240 tools: managing tasks, meetings, ideas and priorities
- 03Automatic transcription of voice messages (Whisper)
- 04Automatic morning briefing, midday check-in and evening recap
- 05Daily /100 productivity score with a streak system
- 06Smart reminders about 1h before each deadline
- 07Automated onboarding: Stripe → Supabase → welcome message
- 08Team mode: task assignment and overview for founders
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