# y

y is a Mac coding agent app for Claude Code and Codex.

Malleable software for coding agents. Use Claude Code and Codex to build your projects and reshape the app itself live with Modify.

## What y is for

- Run Claude Code and Codex from one Mac app.
- Run coding agents in parallel.
- Keep agent work separated in isolated workspaces.
- Use Modify to reshape the y interface itself.
- Keep local chats and project work on the user's machine.

## Developer resources

- [Developer portal](https://ytimesy.com/developers)
- [OpenAPI spec](https://ytimesy.com/openapi.json)
- [llms.txt](https://ytimesy.com/llms.txt)
- [MCP manifest](https://ytimesy.com/.well-known/mcp.json)
- [MCP endpoint](https://ytimesy.com/mcp)

## Download

- [Download y for Mac](https://github.com/y-times-y/y/releases/latest/download/y.dmg)
- [Source on GitHub](https://github.com/y-times-y/y)