commerce validators for ChatGPT

org.scienceswarm/commerce-validators

Commerce validators: live EU VAT (VIES), EORI, email/MX lookups; IBAN/ABA/GTIN checksums; VAT rates.

client:ChatGPT transport:streamable-http tools:10

Install commerce validators in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://mcp.scienceswarm.org/mcp

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