Replicas (tryreplicas.com), a Y Combinator (Spring 2026) company, runs end-to-end background coding agents in isolated cloud sandboxes. Teams delegate engineering tasks - from Slack, Linear, GitHub, GitLab, Sentry, the web dashboard, a CLI, or a native macOS app - to frontier coding agents (Claude Code, Codex, Cursor, OpenCode) that work in their… - View it on GitHub