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Contrabass: A project-level orchestrator for AI coding agents — Go & Charm stack implementation of OpenAI's Symphony. It is listed under Development & Code on AI Registry as a free tool.
The tools below are approved listings in the same category, ordered by how closely their tags match Contrabass. This is an automatic list. We have not written a researched verdict for Contrabass yet, so treat it as a shortlist and check each vendor's pricing page before switching.
Built from each tool's listing. Vendors can update their own listing after claiming it.
The simplest desktop client for OpenClaw — bridge your Agent to WeChat, Feishu, Slack & Discord in one click.
The simplest desktop client for OpenClaw — bridge your Agent to WeChat, Feishu, Slack & Discord in one click. Works with Claude Code, Codex & any LLM. BYOK, Oauth, local-first, chat from your phone 24/7.