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xmlvalid

Official registry Finance and payments

Validate XML and e-invoices (XSD, DTD, RelaxNG, EN 16931, Peppol, XRechnung), explain errors

Website

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http xmlvalid 'https://xmlvalid.com/mcp' --header 'Authorization: <An xmlvalid API key (Dashboard → API keys, free tier), for validate_xml and get_validation; the lookup tools need none>'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "xmlvalid": {
            "type": "http",
            "url": "https://xmlvalid.com/mcp",
            "headers": {
                "Authorization": "<An xmlvalid API key (Dashboard → API keys, free tier), for validate_xml and get_validation; the lookup tools need none>"
            }
        }
    }
}

Frequently asked questions

What is xmlvalid?

Validate XML and e-invoices (XSD, DTD, RelaxNG, EN 16931, Peppol, XRechnung), explain errors

How do I install xmlvalid?

It runs as a remote server. In Claude Code: claude mcp add --transport http xmlvalid 'https://xmlvalid.com/mcp' --header 'Authorization: <An xmlvalid API key (Dashboard → API keys, free tier), for validate_xml and get_validation; the lookup tools need none>'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does xmlvalid need an API key?

Yes. It expects Authorization, which you set in its configuration.

Who maintains xmlvalid?

It is published by com.xmlvalid. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.