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invowerk

E-invoice checker for ZUGFeRD, Factur-X, XRechnung and Peppol BIS. Free web tool, API and MCP.

likely compatible

Declares API key header (X-API-Key); use Copilot Studio 'API key' → Header.

Rule R2b · what this means · Not tested in Copilot Studio.

Registry namedev.invowerk/xrechnung-e-invoice-validator
Endpoint used for verdicthttps://api.invowerk.dev/mcp/
Transportsstreamable-http
Auth (Copilot Studio setting)API key (header)
Last endpoint check2026-10-20T18:13:06Z · initialize OK
GitHubinvowerk-dev/invowerk
Websitehttps://invowerk.dev/en/
Version1.0.1
Registry updated2026-10-04
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Is this wrong or out of date? Email us. Data built 2026-10-20.