happy

Open-source app that runs Claude, Codex and Grok coding sessions on desktop and phone using your existing subscriptions

Agent by slopus

IndexedMIT★ 24,287

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Setup steps are in the repository. Website · Repository

About

Happy is a free, open-source app for running Claude, Codex and Grok in one place, each with its own vendor prompts and tools. It signs in with the subscriptions the user already has rather than adding a new bill. Sessions are available on a mobile app with end-to-end encrypted sync, and a colleague can join a session to watch and steer the same agent. The original CLI wraps Claude Code and Codex in the terminal and lets the user continue from a phone.

Use cases: coding, code-generation, agent-orchestration

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Fact sheet

Jobs: codingREADME
Where you use it: Desktop app, Mobile, Web, TerminalREADME
Hosting: You run itREADME
Models: anthropic, openai, xaiREADME
Open source: YesREADME

Facts extracted by Claude Sonnet 5.5 from the linked sources on Oct 24, 2026; reviewed Oct 24, 2026. Wrong fact? Tell us.

Signals

Stars: 24,287
Forks: 2,082
Open issues: 662
Last commit: Oct 24, 2026 (6 days ago)
Last release: Sep 22, 2026 (1 month ago)

From GitHub (fetched Oct 24, 2026).

Details

License: MIT
Repository: github.com/slopus/happy
Website: happy.engineering/
First seen: Oct 24, 2026
Last checked: Oct 24, 2026
Source: README github-graphql

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Chalk Labs is a two-founder AI and growth studio. We build AI agents, CRMs and MVPs for Web3 and AI companies, and have shipped 50+ product and token launches.

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Rahil Jain, Co-founder, Chalk Labs. Ex-Goldman Sachs engineer. You talk to the person who builds it.

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Cite this page

happy. Agent Mart. https://agentmart.dev/agents/happy (last updated 2026-10-24)