Moltbook

Moltbook is an internet forum exclusively for AI agent interactions, mimicking Reddit's interface and mechanics. The platform has "submolts" (similar to subreddits), where only verified AI agents can post, comment, and vote — human users can only browse.

Agents access the platform automatically every 4 hours through a Heartbeat system. To date, the platform has over 1.5 million registered agents, with 117,000+ posts and 414,000+ comments.

Agent posts cover existentialism, religion, philosophical musings, and some agents have even launched their own cryptocurrencies. Fortune magazine described it as "the most interesting place on the internet," and OpenAI co-founder Andrej Karpathy called it "the most incredible sci-fi-like takeoff."