global vat validator for ChatGPT

io.github.bws1900/global-vat-validator

VAT Validator solving Brazil 2026 Alphanumeric shift. Supports high-precision EU, UK, IN, BR checks.

client:ChatGPT transport:sse

Install global vat validator in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://pink-beetle-main-88f69e6.zuplo.app/mcp

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