I built a free invoicing tool that lets AI create invoices for you (and why I almost didn't)

Hi, I'm Santiago García - freelance developer based in Haarlem, Netherlands, originally from Argentina. Like most freelancers, I hate invoicing. Not the money part - the process. Open Excel, copy the template, fill in the client, calculate VAT, export PDF, attach to email, pray they pay. Every. Single. Time. I built FacturaHub to fix that for myself. Then I realized it could fix it for a lot of people. What it is FacturaHub is an MCP server that connects AI assistants like Claude or Cursor directly to your invoicing.