Tilion

Tilion provides stealth browser infrastructure for AI agents. Tilion Cloud offers isolated Chromium sessions through a REST API: agents create a session, attach with Playwright or Puppeteer over Chrome DevTools Protocol, and are billed only while the browser runs; paid plans add residential egress, region and fingerprint-persona configuration, and optional fetch, extract, search, and agent-task APIs. Its open-source Fortress engine recompiled Chromium's C++ to correct browser fingerprints natively and exposes a local MCP server with 26–29 agent tools. Pricing starts with a free tier of three concurrent sessions and ten browser hours per month, then paid Developer, Pro, Scale and Enterprise plans.