Billwise Invoice Maker for ChatGPT

io.github.theluckystrike/billwise-invoice-maker

An invoice generator for freelancers, contractors, and small businesses that works inside the chat.

client:ChatGPT transport:streamable-http tools:1

Install Billwise Invoice Maker in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://invoice-maker.zovo.one/mcp

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