FSB (Full Self Browsing)
Automate browser actions and navigate web workflows using pure DOM structure and natural language without vision models.
FSB (Full Self Browsing) is an open-source, DOM-first AI browser automation tool designed for Google Chrome and Model Context Protocol (MCP) clients. Unlike vision-heavy agents that rely on frequent screenshots and high token consumption, FSB analyzes live page structure, selectors, ARIA attributes, and forms directly to achieve sub-second step latencies and reliable element interaction. Operating either as a standalone Chrome extension or as a local MCP server, it enables external AI clients such as Claude Code, Cursor, and VS Code to inspect pages, click, type, upload local files, and trigger verified first-party API capabilities with built-in action verification and safety guardrails.