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Open Swarm

Open Swarm

An Army of AI Agents at Your Fingertips
A locally-running orchestrator for managing multiple agents in parallel.
Launch, monitor, and coordinate entire swarms of coding agents from a single interface.

License Platform GitHub Stars PRs Welcome


Open Swarm Dashboard


Why Open Swarm?

Running agents in a terminal works fine for one task. But when you're juggling five agents across different branches, approving tool calls in separate windows, and losing track of who's doing what — it falls apart fast.

  • Parallel agents, one screen — Launch as many agents as you need, arranged on a spatial canvas you can pan and zoom freely
  • Unified approval workflow — Every tool-use request from every agent surfaces in one place. Approve or deny with a click or a keyboard shortcut.
  • Full conversation control — Edit prior messages to fork conversations, navigate between branches, resume closed sessions
  • 100% local — Everything runs on your machine. No cloud relay, no telemetry, no third-party backend.

Features

Spatial Dashboard — Infinite canvas with drag-and-drop agent cards, view cards, and embedded browser cards. Create multiple dashboards for different workspaces.

Agent Chat — Full streaming chat interface powered by WebSockets. Real-time token output, cost tracking per session, and persistent history that survives restarts.

Human-in-the-Loop Approvals — Agents request permission before executing tools. Approve or deny individually, or batch-approve from the dashboard. Configurable per-tool permissions (always allow, ask, deny).

Message Branching — Edit any prior message to fork the conversation. Navigate freely between branches without losing context.

Prompt Templates — Build reusable templates with structured input fields. Invoke them inline via / slash commands.

Skills Library — Manage skills that sync directly to ~/.claude/skills/. Browse and install from the official Anthropic skills marketplace.

Tools Library — Configure MCP tool servers (stdio, HTTP, SSE) with automatic tool discovery. Browse the MCP registry and Google's catalog with GitHub star counts. Includes Google Workspace OAuth integration.

Agent Modes — Five built-in modes (Agent, Ask, Plan, View Builder, Skill Builder) plus custom user-defined modes with configurable system prompts and tool restrictions.

Views & Outputs — Create interactive HTML/JS/CSS artifacts rendered in iframes. Supports vibe coding (LLM-generates the view), backend Python execution, auto-run with LLM-generated data, and agent-driven data gathering.

Git Worktree Isolation — Each agent operates in its own git worktree and branch, preventing conflicts between parallel workstreams.

Diff Viewer — Inspect uncommitted changes in any agent's worktree without leaving the app.

Cost Tracking — Real-time USD spend tracking per agent session.

Dark & Light Themes — Full theme support with design tokens.

Keyboard Shortcuts — Navigate between agents, approve/deny requests, and switch pages without touching a mouse.


Quick Start

Desktop App

Download the latest release for macOS from GitHub Releases.

Windows and Linux builds are planned but not yet available.

Development Setup

Prerequisites: Python 3.11+, Node.js 18+, Git

git clone https://github.com/openswarm-ai/openswarm.git
cd openswarm
bash run.sh

This starts the backend (port 8324), frontend (port 3000), and Electron shell together. Once running, set your Anthropic API key in the in-app Settings page.

To run services individually:

bash backend/run.sh     # API at http://localhost:8324 — docs at /docs
bash frontend/run.sh    # App at http://localhost:3000

Architecture

Electron Shell (desktop wrapper, auto-updater)
├─────────────────────────────────────────────────────────────────────┐
│                                                                     │
│   Frontend (React/TypeScript :3000)       Backend (FastAPI :8324)   │
│   ┌───────────────────────────────┐      ┌───────────────────────┐  │
│   │  Spatial Dashboard Canvas     │◄────►│  REST API  (/api/*)   │  │
│   │  Agent Chat (streaming)       │      │  WebSocket (/ws/*)    │  │
│   │  Templates / Skills / Tools   │ WS   │  Agent Manager        │  │
│   │  Modes / Views / Commands     │◄────►│    └─ claude-agent-sdk│  │
│   │  Settings                     │      │  MCP Tool Discovery   │  │
│   │  Redux Toolkit (state)        │      │  JSON File Storage    │  │
│   └───────────────────────────────┘      └───────────────────────┘  │
│                                                                     │
└─────────────────────────────────────────────────────────────────────┘

Configuration

The Anthropic API key is configured in-app via the Settings page — no environment variable needed for normal usage.

For advanced configuration, copy backend/.env.example to backend/.env:

Variable Purpose
BACKEND_PORT Backend server port (default: 8324)
GOOGLE_OAUTH_CLIENT_ID Google Workspace integration (Gmail, Calendar, Drive)
GOOGLE_OAUTH_CLIENT_SECRET Google Workspace integration
APPLE_ID macOS code signing & notarization (release builds only)
APPLE_APP_SPECIFIC_PASSWORD macOS notarization (release builds only)
APPLE_TEAM_ID macOS code signing (release builds only)
GH_TOKEN GitHub Releases publishing (release builds only)

Keyboard Shortcuts

Key Action
D Go to Dashboard
T Go to Templates
19 Open agent by position
Shift+A Approve all pending requests
Shift+D Deny all pending requests
? Show shortcuts help

Type / in the chat input to invoke prompt templates and skills as slash commands.


Project Structure

backend/
  apps/
    agents/           Agent lifecycle, streaming, worktree management
    dashboards/       Dashboard CRUD and layout persistence
    dashboard_layout/ Card positions and spatial canvas state
    templates/        Prompt template CRUD
    skills/           Skills CRUD (synced to ~/.claude/skills/)
    tools_lib/        MCP tool configuration and discovery
    modes/            Agent mode definitions
    outputs/          Views/outputs, vibe coding, Python executor
    settings/         App settings and file browser
    health/           Health check endpoint
    mcp_registry/     MCP server registry proxy
    skill_registry/   Anthropic skills marketplace proxy
  config/             FastAPI app configuration
  data/               Persistent JSON file storage

frontend/
  src/
    app/
      components/     AppShell, Layout, shared UI
      pages/
        Dashboard/    Spatial canvas with agent/view/browser cards
        AgentChat/    Streaming chat, HITL approvals, branching, diff viewer
        Templates/    Template library with structured input fields
        Skills/       Skills library, skill builder, registry browser
        Tools/        Tool config, MCP discovery, OAuth, registry browser
        Modes/        Mode definitions with system prompts
        Views/        Output artifacts, code editor, vibe coding
        Commands/     Keyboard shortcuts reference
        Settings/     App configuration
    shared/
      state/          Redux slices (agents, dashboards, templates, skills, tools, modes, etc.)
      ws/             WebSocket manager
      hooks/          Custom hooks
      styles/         Theme tokens, global styles

electron/
  main.js             Electron main process, auto-updater, Python env management
  scripts/            Build and notarization scripts

scripts/
  build-app.sh        Desktop app packaging (electron-builder)
  build-python-env.sh Standalone Python 3.13 environment bundler

Tech Stack

Frontend — React 18, TypeScript, Redux Toolkit, Material UI v7, CodeMirror 6, Framer Motion, React Router v7, Webpack 5

Backend — FastAPI, Python 3.11+, Pydantic v2, claude-agent-sdk, Anthropic SDK, WebSockets, httpx

Desktop — Electron 33, electron-builder, electron-updater (auto-updates via GitHub Releases)

Bundled Runtime — Standalone Python 3.13 (via python-build-standalone) so end users don't need Python installed


Contributing

Contributions are welcome. To get started:

  1. Fork the repository
  2. Create a feature branch (git checkout -b feature/your-feature)
  3. Make your changes
  4. Submit a pull request

Please open an issue first for larger changes so we can discuss the approach.


License

MIT — see LICENSE for details.

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