Proliferate

Keystone is an autonomous engineering platform that provides a unified workspace for coding agents, engineers, and operators. It features cloud sandboxes that duplicate production infrastructure and allows agents to execute end-to-end workflows by pulling context from codebases and internal tools. The platform automatically responds to events from tools like GitHub and Sentry, enabling PMs, designers, and engineers to build and automate tasks without manual coding. Pricing details are not listed publicly.