Clay is a self-hosted, browser-based workspace that supports multiplayer collaboration for developers utilizing Claude Code and Codex. It allows teams to work together on projects, with AI agents ('Mates') that possess persistent memory and can participate in discussions and coding tasks. The platform provides a unified dashboard to manage multiple repositories and run AI agents across them in parallel. Key features include cross-vendor instruction loading, where Clay merges prompts from `AGENTS.md` (for Codex) and `CLAUDE.md` (for Claude) into a single system prompt. It also supports structured debates among AI Mates for decision-making and offers isolated worktrees for managing changes. Clay stores data locally in JSONL and Markdown, aiming to prevent vendor lock-in.
Featured on AI Radar: Clay: A Self-Hosted, Multi-User Workspace for Claude Code and Codex