site for ChatGPT

com.multiplesbook/site

MultiplesBook: the site's own MCP server — dataset; every answer cites the site.

client:ChatGPT transport:streamable-http tools:7

Install site in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://multiplesbook.com/mcp

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