EU EN-16931 & XRechnung Deterministic Validator for ChatGPT

eu.iotpay/en16931-validator

Official KoSIT EN 16931 & XRechnung XML validator issuing signed Ed25519 VCs. Zero retention.

client:ChatGPT transport:streamable-http tools:3

Install EU EN-16931 & XRechnung Deterministic Validator in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://agent-gateway-i3gust564q-ey.a.run.app/mcp

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