Happy

by Happy Engineering

Harness and apps to run Claude, Codex and Grok coding agents with your subscriptions, continue from your phone and share sessions.

Free
Reuses your Claude, Codex and Grok subscriptions
Open source
MIT
Desktop, iOS, Android, Web, Command line
July 2025
Repo created 2025-07-18

What it can do

The same 11 checks for every agent, each linked to the page it came from.

Its own cloud computerNoRuns on your own hardwarehappy.engineering
Uses a web browserNot documentedThe maker's pages don't sayNo source says
Remembers between chatsNot documentedThe maker's pages don't sayNo source says
Routines and schedulesNot documentedThe maker's pages don't sayNo source says
App connectors or MCPNot documentedThe maker's pages don't sayNo source says
Asks before risky actionsNot documentedThe maker's pages don't sayNo source says
Teams or several agentsYesTeam server; invite others into a sessionhappy.engineering
Works in iMessage, WhatsApp or TelegramNoUses its own appshappy.engineering
VoiceNot documentedThe maker's pages don't sayNo source says
Bring your own model or keyYesSign in with Claude, Codex or Grok planshappy.engineering
Can be self-hostedYesRuns on your hardware; deploy a team serverhappy.engineering

How it differs from Mates

A coding harness on your own machine with a phone app; Mates is a hosted general teammate with its own computer.

See Mates' entry

Similar agents

Other coding agents in the directory.

Checked against Happy Engineering's own pages.

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