PDFInvoiceAPI for ChatGPT

com.pdfinvoiceapi/render

Turn HTML or templates into branded invoice & document PDFs from your agent. One call, no install.

client:ChatGPT transport:streamable-http

Install PDFInvoiceAPI in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://pdfinvoiceapi.com/mcp

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