Jupiter Invoice for ChatGPT

com.jupiterinvoice/server

Create and manage invoices and customers on Jupiter Invoice (MCP, API-key auth).

client:ChatGPT transport:streamable-http

Install Jupiter Invoice in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://jupiterinvoice.com/mcp

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