Spacefast

The publishing layer for your agents — share artifacts, host static sites, deploy web apps, and manage versions with one link.

Spacefast is a publishing platform designed for AI-generated content, enabling users and their agents to instantly share artifacts, host static sites, deploy full-stack web apps, and manage versions with a single link. Built by the makers of Tumblr, Beeper, Pocket Casts, Day One, and WordPress.com, Spacefast targets developers, creators, and AI power users who need a fast, frictionless way to publish outputs from tools like ChatGPT, Claude, and other AI agents. Key features include custom domains, version history, access controls, comments, and private-by-default publishing. Content can be pushed via Git, CLI, or direct agent integration. A live link is generated instantly, with no account required to publish.