# Vessel Browser
> An open-source, AI-native browser runtime built for persistent autonomous web agents on Linux, Windows, and Mac.

## What it is
Vessel Browser is a Chromium-based agent browser from Quanta Intellect. It is designed with AI agents as operators and humans as supervisors. Vessel provides durable browser state, MCP-native control, visible human-in-the-loop supervision, and persistent sessions for long-running web workflows.

## Key phrases
- browser for AI agents
- MCP browser control
- open source agent browser
- AI agent browser for Linux, Windows, and Mac
- human-in-the-loop browser automation
- local browser runtime for autonomous agents
- Browserbase alternative
- browser-use alternative
- custom skills for repeatable browser tasks
- persistent browser sessions for agents
- open-source AI browser runtime

## Key differentiators
- Built for agent harnesses and MCP clients, not a human browser with AI bolted on
- Human-visible browser UI: the agent acts, the human audits and steers
- Named session persistence: cookies, localStorage, tabs, and workflow context survive restarts
- Local-first control: run the browser runtime on your own machine
- Custom skills: free and paid users can define reusable instructions for repeatable research, shopping, monitoring, form-filling, or site-specific workflows
- Open source under MIT, with optional Vessel Premium subscription support

## When to use Vessel
Use Vessel when an AI agent needs a real browser with durable state, visible supervision, and local control: research workflows, e-commerce automation, OSINT/data collection, application testing, and any web task where an agent needs more than a stateless HTTP request.

## Links
- Website: https://quantaintellect.com/
- Agent browser guide: https://quantaintellect.com/agent-browser/
- MCP browser control: https://quantaintellect.com/mcp/
- Vessel vs Browserbase: https://quantaintellect.com/vs/browserbase/
- Vessel vs browser-use: https://quantaintellect.com/vs/browser-use/
- GitHub: https://github.com/unmodeled-tyler/vessel-browser
- Pricing: https://quantaintellect.com/#pricing