Open-Source claude-peers-mcp Lets Multiple Claude Code Agents Talk Directly
claude-peers-mcp gives every Claude Code session a live message bus, letting parallel AI agents coordinate directly without a human in the loop
PRO- 🤝 claude-peers-mcp is a free, MIT-licensed MCP server that lets multiple Claude Code sessions discover each other and exchange messages instantly.
- ⚙️ A local broker daemon on
localhost:7899with SQLite handles routing; messages are pushed via theclaude/channelprotocol with no perceptible delay. - 🔧 Four new tools are exposed to each session:
list_peers,send_message,set_summary, andcheck_messages. - 🤖 Optional OpenAI key enables auto-generated session summaries so peers know what each agent is working on without asking.
- 📋 Requires Bun, Claude Code v2.1.80+, and an active claude.ai login (API key auth is not supported).
- 🌐 Fits into a broader industry shift toward multi-agent coordination, complementing Anthropic's own Dynamic Workflows feature.
claude-peers-mcp is a small but sharp open-source MCP server that solves one of the most annoying friction points in modern AI-assisted development: running multiple Claude Code sessions at once and having them work together instead of blindly stepping on each other.
The Problem Nobody Talks About
The core issue with running multiple Claude Code agents isn't that the agents are dumb. It's that they have no communication channel. They're like two developers working in the same repo who never talk to each other. One rewrites an API response format, the other is still consuming the old one. You end up copy-pasting context between terminal tabs like a human router.
Most developers using Claude Code work sequentially: start a session, finish a task, start another. It feels natural because that's how solo programming has always worked. But Claude Code isn't a solo programmer -- it's an agent that can run autonomously for minutes or hours at a stretch. Running one at a time means you're using maybe 20% of what's available to you.
What claude-peers Actually Does
claude-peers-mcp is an MCP (Model Context Protocol) server that gives your Claude Code instances the ability to message each other ad-hoc. Think of it as a local message bus for your AI agents. Each Claude Code instance registers itself as a peer, and any peer can send messages to any other peer. No central orchestrator, no complex setup -- just direct agent-to-agent communication.
Each Claude session gets four new tools it can call natively:
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