Show HN: Vessel Browser – An open-source browser built for AI agents, not humans

Vessel Browser is an open-source, agent-first web browser runtime for persistent autonomous web agents. MCP-native control, human supervision, persistent sessions. MIT licensed.
4 points by unmodeledtyler 215 days ago quantaintellect.com 4 comments
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I'm Tyler - the solo operator of Quanta Intellect based in Portland, Oregon. I recently participated in Nous Research's Hermes Agent Hackathon, which is where this project was born.

I've used agents extensively in my workflows for the better part of the last year - the biggest pain point was always the browser. Every tool out there assumes a human operator with automation bolted on. I wanted to flip that - make the agent the primary driver and give the human a supervisory role.

Enter: Vessel Browser - an Electron-based browser with 40+ MCP-native tools, persistent sessions that survive restarts, semantic page context (agents get structured meaning, not raw HTML), and a supervisor sidepanel where you can watch and control exactly what the agent is doing.

It works as an MCP server with any compatible harness, or use the built-in assistant with integrated chat and BYOK to 8+ providers including custom OAI compatible endpoints.

Install with: npm i @quanta-intellect/vessel-browser

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