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@plasmate-labs

Plasmate

README.md

Plasmate Labs

The browser engine for AI agents.

We build tools that help AI agents understand and interact with the web. Our flagship project, Plasmate, transforms raw HTML into a Semantic Object Model (SOM) — structured, meaningful data that AI can actually work with.

Why Plasmate?

Web pages are built for humans, not machines. AI agents waste tokens parsing noisy HTML, ads, and navigation. Plasmate solves this by extracting what matters: the semantic content.

  • 16x fewer tokens than raw HTML
  • Structured output ready for LLM consumption
  • Framework integrations for Vercel AI, LangChain, and more
  • MCP server for Claude Code, Cursor, and other AI tools

Get Started

cargo install plasmate
plasmate fetch https://example.com

Links

Building the infrastructure for AI-native web browsing.

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  1. plasmate plasmate Public

    The browser engine for agents. HTML in, Semantic Object Model out. 10x token compression, V8 JS rendering, CDP compatible. Apache-2.0.

    HTML 19 2

  2. plasmate-extension plasmate-extension Public

    Chrome extension for exporting auth cookies to Plasmate. One click, AES-256-GCM encrypted, localhost only.

    HTML

  3. plasmate-benchmarks plasmate-benchmarks Public

    Reproducible benchmarks for Plasmate. Token compression, latency, and coverage across 100+ real websites.

    Shell 1

  4. plasmate-mcp plasmate-mcp Public

    MCP server for Plasmate. Use with Claude Code, Claude Desktop, Cursor, and Windsurf. npm install plasmate-mcp.

    JavaScript 1

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