hcom lets AI agents message, monitor, and spawn each other across terminals.

github.com/aannoo/hcom
hcom homepage screenshot

About hcom

hcom is an installable command-line tool that lets AI coding agents message, watch and spawn each other across terminals. You start an agent by putting hcom in front of its usual command, such as hcom claude, then prompt it as normal. Once agents are running, they can exchange messages in real time, check each other's status and transcripts, and create, fork, resume or stop other agents. The project is released under the MIT license.

Pricing is not clearly stated.

Key features

  • Messages arrive mid-turn or wake idle agents
  • Event subscriptions that can trigger automatic reactions
  • Search past conversations
  • Headless agents that run in a background terminal
  • MQTT relay for agents on different machines
  • Local SQLite database for hook activity
Best for: Developers who want to coordinate multi-agent pipelines across several AI coding CLIs.
Good for
  • Hooks only activate for agents launched with hcom in front, so normal use is unaffected
  • Works with a long list of coding CLIs, including claude, codex, gemini and cursor
  • Released under the MIT license
Watch out for
  • The cross-device relay needs a token that should be guarded like an API or SSH key
  • Other AI tools join manually rather than with automatic delivery

hcom at a glance

Type
App
Pricing
Not confirmed. Check the site
Platforms
macOS, Linux, Windows
Details verified
Oct 22, 2026 · Official source
Open source
Yes · Source code
Language
English
Last checked
Oct 5, 2026 · Online when checked
Listed
Oct 5, 2026

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hcom FAQ

How do I install hcom?
You can install it with uv tool install hcom or brew install aannoo/hcom/hcom.
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