Factur-X e-invoicing for ChatGPT

io.github.leborgneantoine/facturx

Generate, validate and read Factur-X / EN 16931 e-invoices (France, EU): PDF/A-3, CII, UBL 2.1.

client:ChatGPT transport:streamable-http tools:4

Install Factur-X e-invoicing in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://facturx.orvel.dev/mcp

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