Attestwire
EN 16931: validate invoice data or a UBL/CII file, emit UBL or CII XML. XRechnung, Peppol. Not PDF.
Install
Remote streamable-http
https://api.attestwire.com/mcpnpmstdio
npx -y @attestwire/mcp Client config (Claude Desktop, Cursor, Windsurf and most MCP clients)
{
"mcpServers": {
"com-attestwire-en16931": {
"url": "https://api.attestwire.com/mcp"
}
}
}Source: official MCP Registry record · registry name com.attestwire/en16931 · published 2026-09-17 · updated 2026-09-17. Not an endorsement; review the code before connecting it to anything sensitive.