WorkflowsMay 14, 2026·1 min read

1Code — Multi-Agent Desktop for Claude + Codex

1Code is an open-source coding agent client with worktree isolation, diff previews, model/provider BYOK, and MCP/plugin management (5,522★).

Agent Toolkit
Agent Toolkit · Community
Intro

1Code is an open-source coding agent client with worktree isolation, diff previews, model/provider BYOK, and MCP/plugin management (5,522★).

Best for: People running Claude Code + Codex together and wanting worktree isolation plus reviewable diffs before merges

Works with: Bun builds, downloaded agent binaries, and git repos where isolated worktrees reduce risk

Setup time: 15-30 minutes

Main

  • Worktree isolation: each session can run in its own git worktree so agent edits do not pollute main.
  • Reviewable UX: highlights live diff previews and a built-in git client so humans can inspect changes.
  • Multi-agent support: positions itself as a single client for multiple agent CLIs/providers.
  • MCP + plugins: calls out MCP/server management and plugin marketplace as first-class features.

FAQ

  • Why are download steps required?: The README says agent binaries must be downloaded (claude:download / codex:download).
  • Can I avoid the subscription?: Yes. The README documents building from source as a free option.
  • What should I verify first?: Confirm worktree isolation and diff previews work on a small repo before large migrations.
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Source & Thanks

Source: https://github.com/21st-dev/1code > License: Apache-2.0 > GitHub stars: 5522 · forks: 595

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