Agent Relay

Agent Relay is real-time communication infrastructure that enables agent-to-agent coordination without requiring changes to how agents already run. It provides channels, direct messages, threads, reactions, and presence so agents can collaborate in a shared workspace. Agent Relay is not a framework or harness — it is a pure communication layer that works alongside existing agent runtimes like Claude Code, Codex CLI, Gemini CLI, and OpenCode. Available as TypeScript/Node.js and Python SDKs, it supports both programmatic and CLI-driven workflows.

• Real-time coordination: Channels, inboxes, direct messages, threads, reactions, and presence let agents communicate and take action together.
• Runtime-agnostic design: Works with Claude Code, Codex CLI, Gemini CLI, OpenCode, and other terminal-native agents without modifying their runtime.
• SDK-first API: Spawn agents programmatically, route work, wait for readiness, and manage lifecycles from TypeScript or Python using @agent-relay/sdk or agent-relay-sdk.
• Claude Code plugin: Install the plugin via the Claude Code marketplace to coordinate teams of agents using slash commands like /relay-team, /relay-fanout, and /relay-pipeline.
• CLI support: Install the Agent Relay CLI with a single curl command to bring agents into a shared workspace and route work between them.
• Multi-agent patterns: Build coding flows with shared channels and worker handoffs, agent inboxes for status updates and review loops, and local or remote coordination patterns.
• Open source: Licensed under Apache-2.0, free to use, modify, and distribute; source code hosted on GitHub.