Attestwire is a Model Context Protocol (MCP) server: EN 16931: validate invoice data or a UBL/CII file, emit UBL or CII XML. XRechnung, Peppol. Not PDF. As an MCP server it plugs straight into AI assistants, exposing its functionality as tools the model can invoke on your behalf.
You can run Attestwire two ways: connect to the hosted endpoint at https://api.attestwire.com/mcp with no local install, or run it on your own machine via the npm package @attestwire/mcp. The current release is v1.1.2.
You'll find Attestwire in the Finance category here on mcp.site; it connects to Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed, and any other MCP client — see the install snippets below. If you maintain Attestwire for attestwire.com, claim this listing to verify ownership, earn the Verified badge, and keep the details current.