JSReverser-MCP is an MCP tool for JavaScript reverse engineering, designed to help developers efficiently locate core frontend logic in real browser environments. It integrates script retrieval, breakpoint debugging, function hooking, network request tracing, call-chain analysis, deobfuscation, and risk assessment into a unified capability, and can connect directly to MCP-compatible clients such as Claude, Codex, and Cursor. You can connect to an open Chrome session and continuously sample reque
About the project
JSReverser-MCP is a Model Context Protocol server that organizes JavaScript reverse engineering in a real browser, combining script inspection, runtime hooks, debugging, request tracing, call-chain analysis, and local rebuilding. Developers use it to investigate front-end logic such as signing, encryption, authentication, and business request flows, and the catalogue provides an instruction and skill for MCP clients such as Claude, Codex, and Cursor.
A playbook for investigating browser JavaScript, including code that creates request signatures or hides how web requests are assembled. It describes observing a page, collecting evidence, rebuilding the relevant logic locally, and simplifying it for analysis.