I built an open-source MCP server that gives any AI assistant live NSE + BSE stock data

The itch

Ask ChatGPT or Claude "what was Reliance's operating margin last quarter?" and you get one of two answers: a polite "I don't have live data," or a confident, wrong number. The reasoning is great. The data access is nonexistent — these models are blind to anything past their training cut-off, and they have zero native window into NSE/BSE.

So I built an MCP server to fix it, and open-sourced it. This is the build story + a quick-start if you want to plug it into your own setup.

30-second MCP refresher

The Model Context Protocol is an open standard that lets AI assistants call external tools through a consistent interface. Instead of guessing, the model issues a structured request — get_stock_quote for RELIANCE — gets real data back, and reasons over it. One protocol, and Claude, ChatGPT, Cursor, Gemini, and Grok can all hit the same data source.