PI-Desktop

PI-Desktop is a desktop app for AI coding agents: open a local repo, connect a model, and the agent reads code, edits files, runs commands and shows you the diff. Under the hood it runs pi, Mario Zechner's open source coding agent, wrapped in persistent sessions, a plan mode, subagents and a plugin system. It's free under LGPL-3.0, with no account.

Setup is a download for macOS, Windows or Linux. You bring the model: OpenAI, Anthropic, any OpenAI-compatible endpoint, or local models through Ollama or LM Studio. Requests go straight to your provider, keys sit in the OS keychain, and the app has no telemetry. It can also import your Claude Code, Codex and OpenCode sessions.

There's no paid tier; your only bill is the model. Solo: free, and a good GUI if terminal agents aren't your thing. Small teams: free, each person brings their own keys. Larger teams: no documented admin, SSO or central billing, so that's still Cursor or Copilot territory.

The catch: it's an early preview shipping three releases in a single day, so expect breakage. The author also publishes an optional plugin listing free community API relays. Don't send your code through an anonymous relay.