StashGamma EOD Stock Data for ChatGPT

com.stashgamma/eod-stock-data

Daily end-of-day OHLCV stock data for U.S.-listed symbols, 15 years of history. Free API key.

client:ChatGPT transport:streamable-http

Install StashGamma EOD Stock Data in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://www.stashgamma.com/api/dataapi/mcp

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