Summerbase for ChatGPT

com.summerbase/mcp

Ask about your subscription metrics, like MRR, ARR and growth, and see the customers behind them.

client:ChatGPT transport:streamable-http

Install Summerbase in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://mcp.summerbase.com/mcp

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