Agent runtime infrastructure Agent Communication Coding Agents Claude Code

Agent Relay

Headless Slack for agents.

Messaging and coordination software for AI agents, providing channels, DMs, threads, reactions, searchable history, typed actions, webhooks, and reliable delivery into live or offline sessions.

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releasePRIMARY2026-08-08

Relay opens people-and-agents messenger for cross-session agent messaging

Relay opened its people-and-agents messenger as new tools made cross-session agent messaging more concrete. Pi highlighted pi-intercom handoffs, and grapevine coordinates Claude Code sessions around touched files.