mcp for ChatGPT

com.twelvedata/mcp

Twelve Data MCP: real-time & historical market data (stocks, crypto, forex, etc).

client:ChatGPT transport:streamable-http

Install mcp in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://mcp.twelvedata.com/mcp

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