XSDHub: EN 16931, XRechnung, Factur-X, KSeF, RO and HR e-invoices for ChatGPT

com.xsdhub/validation

Official rules, version per result. SAF-T, SEPA, ISO 20022, DAC7 checks; CBAM and XBRL web tools.

client:ChatGPT transport:streamable-http tools:8

Install XSDHub: EN 16931, XRechnung, Factur-X, KSeF, RO and HR e-invoices in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://xsdhub.com/mcp

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