Use the DATEVconnect Gateway and MCP to access DATEV data in Claude, ChatGPT, or Langdock and connect your own applications and automations.
Product demo
Watch an AI assistant retrieve the required DATEV data and turn it into a sourced briefing for a client meeting.
Our products
The DATEVconnect Gateway and MCP are available today. Connect your existing AI tools or build your own applications and automations. We are also developing Klarvos for predefined automations.
We are developing automations for recurring tax-firm tasks. In future, you will select the task and client, and Klarvos will prepare the result for your review.
View planned automations →In many tax firms, valuable time is lost before the professional review even begins. Employees collect DATEV data, documents, register information, and internal context manually.
Client data, accounting information, documents, and tax knowledge often live in different places. Teams spend too much time searching, checking, and asking around instead of completing work.
Recurring reviews and preparation tasks are still started and tracked manually in many tax firms. That creates avoidable overhead and slows down turnaround times.
When important operational or tax-related know-how stays in the heads of a few experienced employees, the rest of the firm becomes dependent on interruptions and internal back-and-forth.
The Gateway connects your DATEV environment. MCP gives compatible AI tools access to the data; the REST API supports your own integrations.
Your IT partner installs the Gateway in your DATEV environment and checks the connection. The available data depends on your DATEV modules and permissions.
Authorize users and select the DATEV profile for their requests. Connect your AI tool to the MCP server through OAuth.
Query DATEV from your existing AI tool or use REST and MCP for your own applications and automations. Your team reviews the results in the application it uses.
Gateway and MCP connect your applications to DATEV with defined permissions. You decide which users, profiles, and external applications receive access.
Requests use the approved DATEV connection and user profile. Selected MCP write actions require explicit approval and are recorded in the audit log.
Klardaten hosts its Gateway and MCP services in Germany. The external AI application you choose has its own processing and hosting terms.
Connection and audit logs help you trace access and technical operations.
The selected MCP client receives the requested tool results. Include that provider in your assessment of data processing and access.
Klardaten is used in live operations where stable DATEV connections and low administrative overhead matter every day.
The interface is incredibly stable, and the admin effort for managing DATEV connections has dropped sharply.
Klardaten gave us a powerful and straightforward way to connect customer systems to our time tracking application.
It feels like we are all pulling in the same direction, and we can rely on proactive reactions whenever errors occur within the interface.
Klarvos · In development
These examples show the recurring tasks we want Klarvos to handle. Klarvos and all automations shown here are in development and are not yet available.
Planned: compare register information with stored client master data and identify differences without changing the source systems.
Planned result: Sourced differences or confirmation that no differences were found.
Planned: combine client information for a defined meeting purpose and period into a structured, sourced briefing.
Planned result: A review-ready briefing with relevant figures, documents, and open points.
Planned: review open items for a client and cut-off date and identify relevant exceptions with their data context.
Planned result: A prioritised list of findings with explanations and source data.