InvoiceGen for ChatGPT

io.github.everyai-com/invoice-gen

Freelancer invoices with totals, tax, due dates. Free.

client:ChatGPT transport:streamable-http tools:4

Install InvoiceGen in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://invoice-gen.magicteams.ai/mcp

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