NotaMCP for ChatGPT

io.github.csseocao/notamcp

Issue Brazilian service invoices (NFS-e Nacional) from your AI, with preview and confirmation.

client:ChatGPT transport:streamable-http tools:10

Install NotaMCP in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://notamcp.com.br/mcp

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