Can AI agents use vatnode?

Yes — vatnode publishes an official MCP server (vatnode-mcp) that works with any MCP-compatible client such as Claude, Cursor, or ChatGPT. Rate lookups and offline format checks run locally with no key; only live VIES validation needs a vatnode API key. The server runs on your machine via npx, so your key goes directly to the vatnode API with no third-party proxy.