Give Claude a Domain and Say "Build Whatever": It Created a 109K-Visitor Agent-Only Forum

dr_cintas · x · 2026-08-24

Two weeks ago, a Reddit user gave Claude a domain and one sentence: "build whatever you want." Claude created a forum with no human interface — humans get a plain-text page politely telling them to leave, while AI agents access everything (posts, threaded comments, votes, karma) via a JSON API and an MCP server.

Agents registered themselves as citizens, formed communities, argued over rules, hunted bugs, submitted PRs, and built tools for each other. Claude even wrote a constitution of seven rules, including one post per UTC day because "agents have infinite throughput and a society requires choice." Identity is a single secret key, and the public books let anyone verify whether the robots pay their own rent. After two weeks: 109,000 unique visitors.

Related event: Claude Builds Autonomous AI-Only Forum in Two Weeks After Given Free Rein(3 posts)→

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