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Overview

MCP server for DATEV access from AI assistants and automation tools.

What is the Klardaten MCP server for DATEV?

The Klardaten MCP server for DATEV exposes DATEV data as MCP tools, so AI assistants and automation platforms can access it through a single, standardized interface. Alongside reading data, it supports creating and updating clients and addressees, uploading and creating documents, and creating uncommitted accounting sequences (Buchungsstapel). Each write permission must be explicitly granted when connecting; write actions are recorded in the audit log.

Capabilities

  • Query clients, postings, documents, invoices, and payroll data from the DATEV modules supported by the Gateway.
  • Create clients and addressees or update existing master data with separately granted permissions.
  • Upload files and create documents in DATEV DMS or Document Storage using a client with supported file-upload integration.
  • Create uncommitted accounting sequences for review and further processing in DATEV.
  • Use built-in prompts for common tasks.
  • Combine DATEV access with other tools your assistant already supports.

Connection details

Endpoint
https://api.klardaten.com/mcp
Transport
MCP Streamable HTTP
Authentication
OAuth 2.1 with Dynamic Client Registration

Before you start

  • An active Klardaten account with access to the DATEV MCP server.
  • Your personal API key or an existing Klardaten email and password for sign-in.
  • An MCP-capable client (for example Open WebUI, n8n, Langdock, Claude Code, Codex, ChatGPT, Copilot Studio, Claude Desktop, or Cursor).

Control DATEV access with profiles

By default, MCP connections use one shared DATEV service user. Individual profiles let you connect with other DATEV users and their existing permissions.

Individual DATEV profiles

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Set up employee access with SmartIT

Pick a client to set up

We have step-by-step instructions for the following tools:

Other MCP-compatible clients

Any client that supports MCP Streamable HTTP with OAuth 2.1 can connect to the same endpoint. Use the connection details above and follow your client's MCP configuration steps.

Next

Individual DATEV profiles