AI 에이전트를 $7/월 VPS에 배치하고 IRC를 전송 계층으로 사용한 디지털 도어맨 구축

This case study demonstrates how developers can deploy production-ready AI agents at minimal cost ($7/month) by leveraging Claude API with thoughtful architecture choices—using IRC as a transport layer and stratifying models (Haiku 4.5 for conversation, Sonnet 4.6 for analysis) to keep daily costs capped at $2. It challenges the assumption that sophisticated AI features require expensive cloud infrastructure, showing that self-hosting with open standards can achieve both cost efficiency and security without sacrificing capability or auditability.