Bridges Claude directly into your live browser during development. Once you install the FastAPI or Flask middleware, Claude can call tools like query_element, get_page_snapshot, and read console logs from the actual DOM while you're debugging. The relay at relay.sncro.net sits between your MCP client and a browser-injected agent script that long-polls for commands. Designed for debug mode only, so there's zero overhead in production. Reach for this when you're pair programming with Claude on frontend bugs or layout issues and want it to see exactly what's rendering, not just your source code. The repo includes the relay server, agent.js, and drop-in plugins for both frameworks.
claude mcp add --transport http io.github.scottconfusedgorilla-sncro https://relay.sncro.net/tools/mcp