Anyone who's tried AI-assisted trading research has hit the same wall.
The agent has no native access to your charts. You end up copy-pasting symbols, indicator values, screenshots, and Pine Script back and forth between TradingView and Claude or Cursor. The tools that try to fix this fall into two camps: route market data through a third-party API (added latency, added cost, their interpretation of your bars), or pollute your TradingView chart with helper indicators just so an agent can read them back.
There's a third path that's more obvious in retrospect: drive your local TradingView Desktop through the Chrome DevTools Protocol that the app already exposes on port 9222 when you launch it with --remote-debugging-port=9222. The agent talks to the same TradingView you already use, reads what your chart actually shows, executes Pine Script through TradingView's own runtime. Same data, same indicators, same features, just with an agent in the loop.
A project called tradesdontlie/tradingview-mcp star...