Show HN: Claude Relay – local Claude Code sessions message each other

Category: devtools

Tags: claude-code, mcp-server, agent-communication

Score: 6.8/10 (Innovation: 7, Technical: 7, Documentation: 7, Utility: 6)

Claude Relay is a plugin that enables multiple local Claude Code sessions to communicate with each other in natural language, allowing agents to ask questions and share context across projects. It combines an MCP server with a local Unix socket daemon, delivering messages as notifications, which is an innovative use of Claude's channels capability. The project fills a niche for developers working with multiple Claude sessions, but its single-user, same-host limitations restrict broader adoption.

Target audience: backend devs

Repository: https://github.com/innestic/claude-relay · TypeScript · MIT · 11 stars

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