Partners & IntegrationsEvery leg in specialist hands.

TWT Invoice remains the system of record: it generates the structured invoice in XRechnung or ZUGFeRD and validates it against the standard before anything leaves the house. B2Brouter is the delivery leg: it takes the finished document over its API and routes it through Peppol and other e-invoicing networks, in Germany and across borders.

The recipient gets the invoice straight into their accounting system rather than into an inbox, and the delivery status, whether sent, delivered or rejected, flows back onto the invoice instead of living in a second portal.

Every outgoing invoice can carry a Stripe payment link. The customer pays online by card, SEPA direct debit or wallet, on any device and without creating an account.

Stripe reports the result back over a webhook and the invoice flips to Paid on its own; nobody matches bank statements by hand. Recurring plans go one step further: they renew, charge and invoice themselves on schedule.

Not every recipient takes an e-invoice. For paper, TWT Invoice hands the finished PDF to Pingen over the API, whether that is an invoice, a payment reminder, a contract or any other business document.

Pingen prints, envelopes, franks and posts it, and reports the dispatch back. No printer, no envelopes, no walk to the post office, and the letter looks exactly like the PDF the platform produced.