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1Code

Open source Cursor-like UI for Claude Code

2026-01-16

Product Introduction

  1. Definition: 1Code is a macOS/web-based orchestration platform for Claude Code agents, classified as an AI development acceleration tool. It enables parallel execution of multiple Claude Code instances.
  2. Core Value Proposition: It eliminates sequential Claude Code bottlenecks by running agents concurrently—locally on macOS or via cloud sandboxes—dramatically accelerating feature development cycles.

Main Features

  1. Parallel Agents Engine:
    • Executes multiple Claude Code agents simultaneously using isolated environments. On macOS, agents run locally (with/without Git worktrees); web versions use containerized sandboxes. Live mobile/web previews enable real-time monitoring.
  2. Claude Code Integration:
    • Mirrors all native Claude Code capabilities—plan mode, skills, message editing—via direct Anthropic API synchronization. Utilizes users’ existing Claude Pro/Max subscriptions without feature degradation.
  3. Keyboard-First Workflow:
    • Fully navigable via hotkeys for agent creation, task switching, and PR management. Built on reactive UI frameworks (likely React/Electron) to eliminate mouse dependency and reduce context switching.

Problems Solved

  1. Pain Point: Slow iteration speeds in AI-assisted development due to linear Claude Code execution.
  2. Target Audience:
    • AI engineers building multi-feature products
    • Remote teams requiring collaborative agent monitoring
    • Solo developers managing complex projects with Git worktrees
  3. Use Cases:
    • Simultaneously prototyping 3+ app features via parallel agents
    • Testing mobile-responsive UIs through live web sandbox previews
    • Merging code changes directly from the PR workflow interface

Unique Advantages

  1. Differentiation:
    • Versus Claude CLI: Adds parallelization, visual previews, and Git integration
    • Versus Conductor: Specialized for Claude Code (not generic LLMs) with macOS-native performance
  2. Key Innovation:
    • Hybrid execution model: Local processing (macOS) for latency-sensitive tasks + cloud sandboxes for cross-device access. Patent-pending agent concurrency management minimizes resource contention.

Frequently Asked Questions (FAQ)

  1. Does 1Code require Claude Pro?
    Yes, 1Code mandates an active Claude Pro or Claude Max subscription for API access but doesn’t charge extra for Claude usage.
  2. Is my code sent to 21st.dev servers?
    No—macOS runs code locally; web sandboxes use ephemeral containers destroyed post-session. Zero code retention on external servers.
  3. How does 1Code handle Git operations?
    Directly creates/monitors PRs via integrated Git workflows. Supports worktrees for isolated branch testing without repository corruption.
  4. Can I use 1Code without macOS?
    Yes—web version offers full functionality via browser, including mobile previews. macOS app adds local execution benefits.
  5. What support exists for Free tier users?
    Free plan includes source code access for self-hosting and community support via GitHub. Pro/Max add live previews and priority troubleshooting.

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