Building Phantom Protocol: What I Learned Shipping My First Autonomous Agent System on Qwen Cloud

Short summary

A developer built Phantom Protocol, an open-source multi-agent system that automates the entire sales outreach loop from lead discovery to reply handling using Qwen3.7 on Alibaba Cloud. Each agent (Strategist, Hunter, Researcher, Outreacher, Reply Handler, Learning Agent) communicates only through MongoDB and BullMQ job queues, keeping the system modular and crash-resilient. The post honestly covers deployment struggles on a bare VPS, the decision to use Hunter.io instead of scraping directories, and plans for multi-channel outreach and a managed cloud version.

• •Multi-agent sales outreach system with six specialized agents communicating via MongoDB and BullMQ
• •Built on Qwen3.7 through Alibaba Cloud DashScope with tiered model usage per task complexity
• •Open-sourced under AGPL v3; future plans include multi-channel outreach and a managed cloud version

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