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HolaOS

Name: HolaOS MCP Server
Author: holaboss-ai

An open-source 'agent computer' — gives Claude a desktop-like surface for browsing, file ops, and app automation via MCP.

HolaOS is a runtime that provides a virtual environment for agents: filesystem, browser, app shims. Claude calls it via MCP and gets a sandbox where it can complete real digital chores. Useful when single MCP tools aren't enough.

▶ Watch demo 📦 Install 💡 Use Cases

Why use it

Key features

Virtual filesystem for the agent
Embedded browser
App shim layer
MCP surface
Replayable sessions
Local-first

Live Demo

What it looks like in practice

ready

Install

Pick your client

~/Library/Application Support/Claude/claude_desktop_config.json · Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "holaos-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "holaos",
        "mcp"
      ]
    }
  }
}

Open Claude Desktop → Settings → Developer → Edit Config. Restart after saving.

~/.cursor/mcp.json · .cursor/mcp.json

{
  "mcpServers": {
    "holaos-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "holaos",
        "mcp"
      ]
    }
  }
}

Cursor uses the same mcpServers schema as Claude Desktop. Project config wins over global.

VS Code → Cline → MCP Servers → Edit

{
  "mcpServers": {
    "holaos-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "holaos",
        "mcp"
      ]
    }
  }
}

Click the MCP Servers icon in the Cline sidebar, then "Edit Configuration".

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "holaos-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "holaos",
        "mcp"
      ]
    }
  }
}

Same shape as Claude Desktop. Restart Windsurf to pick up changes.

~/.continue/config.json

{
  "mcpServers": [
    {
      "name": "holaos-mcp",
      "command": "npx",
      "args": [
        "-y",
        "holaos",
        "mcp"
      ]
    }
  ]
}

Continue uses an array of server objects rather than a map.

~/.config/zed/settings.json

{
  "context_servers": {
    "holaos-mcp": {
      "command": {
        "path": "npx",
        "args": [
          "-y",
          "holaos",
          "mcp"
        ]
      }
    }
  }
}

Add to context_servers. Zed hot-reloads on save.

claude mcp add holaos-mcp -- npx -y holaos mcp

One-liner. Verify with claude mcp list. Remove with claude mcp remove.

Use Cases

Real-world ways to use HolaOS

Give Claude a sandbox desktop for multi-step chores

👤 Developers ⏱ ~15 min intermediate

When to use: Tasks like 'gather data from 5 sites, drop into a spreadsheet, draft an email' that span apps.

Flow

Boot

Start holaos; Claude sees the desktop tools.✓ Copied

→ Surface up
Task

Ask Claude to complete the chore using the sandbox.✓ Copied

→ Steps logged
Review

Replay the session before trusting outputs.✓ Copied

→ Audit done

Outcome: Cross-app chore done in an auditable sandbox.

Combinations

Pair with other MCPs for X10 leverage

holaos-mcp + playwright-mcp

Use Playwright directly for fine-grained browser work; HolaOS for whole-desktop tasks

Combine holaos-mcp with playwright-mcp: Use Playwright directly for fine-grained browser work; HolaOS for whole-desktop tasks✓ Copied

Tools

What this MCP exposes

Tool	Inputs	When to call	Cost
fs / browse / app_call	(see docs)	Three coarse-grained surfaces	1 call

Cost & Limits

What this costs to run

API quota: Local resources
Tokens per call: Mid — desktop sessions are chatty
Monetary: Free OSS
Tip: Cap session length — long agent runs explode in tokens

Security

Permissions, secrets, blast radius

Minimum scopes: vm-control

Credential storage: Session artifacts on disk

Data egress: Whatever the agent reaches

Never grant: Expose the sandbox to a real user account without isolation

Troubleshooting

Common errors and fixes

Session goes stale

Restart the holaos runtime; sessions are not crash-safe yet

Alternatives

HolaOS vs others

Alternative	When to use it instead	Tradeoff
UI-TARS-desktop	You want ByteDance's multimodal stack	Heavier setup

Resources

📖 Read the official README on GitHub

🐙 Browse open issues

🔍 Browse all 400+ MCP servers and Skills