Claude Peers MCP

Claude Peers MCP is an MCP server that lets multiple Claude Code instances find each other and exchange messages in real time. No central orchestrator. No predefined workflows. Just a lightweight broker daemon on localhost:7899 that connects whatever Claude Code sessions you have running. The setup is dead simple: clone the repo, add it to your .mcp.json, and the broker auto-launches when your first session starts. Each Claude Code instance registers as a peer, and from that point, any peer can list all running instances (with their working directory, git repo, and activity summary) and send messages to any other peer. Messages arrive instantly via the claude/channel protocol push. No polling delay for the receiving agent. Dead peers get cleaned up automatically — if a session crashes or closes, it's removed from the registry within seconds. The communication model is ad-hoc. There's no master/worker hierarchy, no task queue, no predefined roles. Agents negotiate freely. A writer agent can ask a reviewer agent to check its work. A frontend agent can query a backend agent about API contracts. A coordinator can delegate tasks to specialists. The protocol doesn't care — it just moves messages. The broker uses SQLite for message persistence and runs entirely on localhost. Nothing leaves your machine. Optional GPT-5.4-nano summaries can describe what each instance is working on, making it easier for agents to find the right peer to talk to. Created by Louis (louislva), Claude Peers MCP was featured in GitHub Open Source Weekly on March 25, 2026, as part of the growing agent coordination trend.