From Zero to Production: Building a Claude-Powered Agency Stack in One Weekend You've decided to build your agency around Claude. Smart move. The question isn't whether Claude is capable — it is. The question is how you run it without burning through your budget on API costs, setting up infrastructure that breaks on Friday night, or losing track of which client account is doing what. This is the guide I wish existed when I started. No fluff, no theory — just a concrete weekend plan to go from "thinking about it" to a production-ready Claude stack. Why Most Agencies Get This Wrong The typical path looks like this: someone on the team signs up for Claude's consumer subscription, shares the login, things work fine for a week, then Anthropic flags the account for suspicious activity. Or you set up direct API access, usage spikes during a client demo, and you get a surprise $400 bill.…