vat.support VAT Compliance for ChatGPT

io.github.vmalyshev1/vat-support

EU/UK VAT compliance for AI agents: number validation, rate lookups, reverse-charge checks.

client:ChatGPT transport:streamable-http tools:5

Install vat.support VAT Compliance in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://snapshot.vat.support/api/mcp

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