The integrations that exist, and one still to come
We only list connections that run in production today. What is in preparation is labelled as such.
For bookkeeping, Lexware and sevDesk are connected. Contacts and companies run both ways, invoices and credit notes go out as documents with your number, payments come back to the invoice. Offers stay in cashwerk. Per object you switch the sync and its direction, internal number ranges are never overwritten, and every run is in the sync log. With Lexware, changes also arrive by webhook. If sign-in failures pile up, both connectors deactivate themselves and say so. They belong to the Business plan.
Google and Microsoft play three roles: sign-in, calendar and mailbox. Calendar sync runs in both directions and is included from the Starter plan. Through the connected mailbox you send offers, invoices, reminders and dunning letters under your own address. Finax generates XRechnung and ZUGFeRD and validates them against the KoSIT rules, in the Business plan. Recall.ai sends a bot into your meeting, the transcript lands in the workspace and tasks can be created from it.
The DATEV posting batch exports from the Starter plan straight out of your invoices, with accounts per cost category. A direct DATEV connection follows. For everything else there are five ways into the workspace: REST API, webhooks, n8n node, MCP server and OAuth 2.0 clients. All of them come from the same OpenAPI specification and obey the same permissions as the interface.
