--- title: "DATEV MCP server · Connect AI agents to DATEV" description: "Connect inference.eu agents to DATEV through an MCP server. Read postings, clients and documents, and prepare uncommitted booking batches for review." canonical: "https://inference.eu/connect/datev/" language: "en" --- MCP servers · Accounting # DATEV MCP server: connect AI agents to DATEV from the EU DATEV does not publish its own MCP server. The most complete option is the Klardaten DATEV MCP server, a commercial third-party server that reaches DATEV through the DATEVconnect gateway. inference.eu agents can connect to it with OAuth, so tax firms and finance teams can query DATEV data and prepare work for review. [Contact sales](https://inference.eu/contact/)[What agents can do with it](#tools) 1. 01Authentication: OAuth 2. 02Community server 3. 03EU data centres ## What agents can do with it - 1 ### Read accounting, payroll and master data Query clients, account postings, invoices, documents and payroll data from the DATEV modules enabled for your Klardaten account, including Rechnungswesen, DMS, master data, order management, Lohn und Gehalt and LODAS. - 2 ### Create uncommitted booking batches Create Buchungsstapel that stay uncommitted, so a person checks and posts them in DATEV. This write permission has to be granted explicitly when you connect. - 3 ### Manage master data and documents Create or update clients and addressees, and upload files into DATEV DMS or the document storage, each with a separately granted permission. Write actions are recorded in an audit log. ## What DATEV and this MCP server are DATEV eG is the Nuremberg-based cooperative whose software runs accounting, payroll and document management in most German tax firms. It offers online and desktop APIs through its developer portal, but it does not publish an MCP server. The Klardaten DATEV MCP server fills that gap. It exposes more than 100 data resources from six DATEV modules as MCP tools over Streamable HTTP, with read access by default and optional, separately granted writes. You need a Klardaten account and a DATEV environment that the gateway can reach. ## What agents can do with DATEV A typical workflow is pre-booking for a Steuerberater: the agent reads incoming invoices from another connector, matches suppliers against DATEV addressees, proposes accounts and tax keys, and writes an uncommitted Buchungsstapel. A bookkeeper reviews the batch in DATEV and posts it. Agents can also answer questions across clients, such as which open items are older than 60 days, compare postings between fiscal years, summarise payroll figures for a monthly report, or find a document in DATEV DMS and quote the relevant passage with its source. ## Setup and authentication On inference.eu, add the DATEV connector to an agent and point it at the Klardaten endpoint `https://api.klardaten.com/mcp`. The server uses OAuth 2.1 with dynamic client registration, so you sign in with your Klardaten login and approve the permissions; there is no key to copy by hand. The resulting token is stored encrypted in the EU and only reaches the agents you allow. By default, connections use one shared DATEV service user. Klardaten profiles let each person connect with their own DATEV user and existing rights instead. ## Data protection and where the data goes DATEV data is personal and often confidential, so it helps to know the path. The agent calls the Klardaten server, which reads from your DATEV environment through DATEVconnect. That flow involves Klardaten as a German third-party provider, in the same way as any other Klardaten client. On inference.eu, the model that reads the results runs in EU data centres, and your connection credentials are stored encrypted in the EU. Check your data processing agreements with Klardaten and DATEV before connecting production client data. ## Approvals and safe use Start read-only. Only grant the write permissions you need, for example uncommitted booking batches but not master data changes. Because batches stay uncommitted, the final posting is always a human step in DATEV. On inference.eu you can require a person to approve risky tool calls before they run, such as creating a batch or uploading a document. Combine this with Klardaten's audit log and DATEV user profiles, so every action is traceable to a person and limited to that person's rights. ## DATEV Vendor DATEV eG Vendor based in Germany Category Accounting Authentication OAuth Transport Remote (HTTP) Server [Community server](https://github.com/Klardaten/mcp-server) Documentation [klardaten.com](https://klardaten.com/en/docs/mcp-setup) ## DATEV: common questions The questions buyers, developers and legal teams ask us most. Something missing? Ask us directly. No. DATEV eG has not published an MCP server on datev.de or its developer portal as of November 2026. The options are third-party: Klardaten offers a commercial server through DATEVconnect, and open-source projects work with exported EXTF files. This page describes the Klardaten server. It is a hosted MCP server run by Klardaten that exposes DATEV data as MCP tools. It connects to DATEV through the Klardaten DATEVconnect gateway and covers accounting, DMS, master data, order management and payroll modules, depending on what your account and DATEV environment enable. Not directly. With a separately granted permission the agent can create an uncommitted Buchungsstapel. A person then reviews it in DATEV and commits it. This keeps the final posting in human hands, which tax firms usually need for their own quality checks. Yes. The server is a Klardaten product, so you need an active Klardaten account with MCP access and a DATEV environment the gateway can reach. Some data, such as LODAS, depends on DATEV options like the Lohnaustauschdatenservice being enabled. Through OAuth 2.1. You add the connector, sign in with your Klardaten login and approve the requested permissions. The token is stored encrypted in the EU, is never shown again in full, and is only available to the agents you choose. According to Klardaten, more than 100 resources from Rechnungswesen, DMS and document storage, master data, order management, Lohn und Gehalt and LODAS. What you actually see depends on your DATEV licences and the permissions of the DATEV user the connection runs as. The data travels from your DATEV environment through Klardaten, a German provider, to the agent. The model on inference.eu then processes it in EU data centres. DATEV and Klardaten handle the data under your agreements with them, as they would for any other client. Yes, for example projects that read and generate DATEV EXTF export files locally. They work with exported data and SKR03 or SKR04 charts of accounts rather than a live DATEV connection, so they suit analysis and file preparation more than day-to-day access. [Ask a question](https://inference.eu/contact/) ## Related [All MCP servers](https://inference.eu/connect/#directory) - [sevdeskConnect inference.eu agents to sevdesk through an open-source MCP server. Audit VAT, reconcile bank payments and draft invoices, read-only by default.Accounting](https://inference.eu/connect/sevdesk/) - [Lexware Office (lexoffice)Connect inference.eu agents to Lexware Office, formerly lexoffice, through an open-source MCP server. Query contacts, invoices and vouchers, read-only by default.Accounting](https://inference.eu/connect/lexoffice/) - [PersonioConnect inference.eu agents to the official Personio MCP server. Read employee, absence and compensation data and request time off, within each user's rights.HR and payroll](https://inference.eu/connect/personio/) - [SAP S/4HANAConnect inference.eu agents to SAP S/4HANA or ECC through an MCP server that exposes OData services via SAP BTP. Query and update business data with approvals.ERP](https://inference.eu/connect/sap/) ## Move your AI workloads to EU infrastructure Tell us which models you use and roughly how much traffic you have. We reply within one working day with pricing and next steps. - Reply within one working day - Pricing for your volume - DPA ready to sign