e-Invoice Validator for ChatGPT

uk.alexhub/einvoice-validator

Validate UBL e-invoices (RO e-Factura, Peppol BIS 3.0, EN 16931) and get the exact fix per error

client:ChatGPT transport:streamable-http tools:3

Install e-Invoice Validator in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://einvoice.alexhub.uk/mcp

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