Telegram & WhatsApp Bulk Messenger

I need a single, streamlined tool that can push high-volume messages to both Telegram and WhatsApp through an exposed API. The workflow should be straightforward: I pass a list of chat IDs / phone numbers and message content to your endpoint, the system queues everything sensibly to stay within platform limits, and I get clear delivery reports back.

Key points
• Platforms: fully support Telegram Bot API and the WhatsApp Cloud / Business API from one codebase.
• Core function: send bulk messages (text first; media support is welcome if practical). No separate agent layers or campaign dashboards are necessary.
• Optional plus: a lightweight AI-style templating or text-spinning helper for basic personalisation if it adds minimal overhead.
• Tech stack is open—Python, Node.js or similar—so long as it runs cleanly in Docker or on a standard Linux VPS.
• Deliverables: well-commented source code, REST (or GraphQL) documentation, quick setup script, and a short demo showing a successful blast to both platforms with status callbacks (sent / delivered / failed).

Build it for reliability and rate-limit safety, keep the code maintainable, and document every step so I can deploy and scale on my own server once the hand-over is complete.
After bulk send when customer reply us we can create agents so the reply should
Come to agents