istfin for ChatGPT

com.istfin/mcp

Borsa Istanbul (BIST) licensed data: prices, OHLCV bars, financial statements, ratios, KAP filings.

client:ChatGPT transport:streamable-http

Install istfin in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://mcp.istfin.com/mcp

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs