Mantis MCP browser shows pages as numbered text, 30-45% fewer tokens than Playwright MCP

Silent_Sky6043 · reddit · 2026-10-27

Mantis is an open-source MCP browser that gives AI agents a real browser but renders pages as short numbered text instead of screenshots. Install in two commands:

npx -y -p mantis-browser mantis install

claude mcp add mantis -- npx -y -p mantis-browser mantis-mcp

Benchmarked against Playwright MCP and screenshots: on long tasks, 30-45% fewer tokens than Playwright and 50% fewer than screenshots, faster, with same or better accuracy. Repo: perzianhq/mantis.

Related event: Open-Source Mantis Browser MCP Cuts Token Use With Numbered Text(2 posts)→

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