Ask your DATEV anything, get the report in seconds.
Connect your AI assistant to your DATEV and get any report or analysis just by asking. In seconds, in real time, no manual exports.
Your DATEV data, inside your AI assistant.
Run your analysis and reports directly in your AI assistant, connected to your DATEV.
One connection, every finance question.
Business controlling
Revenue, margins, and cost trends across your business, on demand.
How is revenue per product type evolving?Accounts payable
Open payables, due dates, and supplier spend at a glance.
List overdue payables above €5,000.Accounts receivable
Open receivables, overdue invoices, and who to chase first.
Which customers are more than 30 days late?Month-end close
Find what is still open and close a couple of days sooner.
What is still unbooked for last month?Live in minutes.
Create your Cortena account
Sign up in a couple of minutes.

Connect DATEV
Link your DATEV in a few clicks.
Add Cortena MCP to Claude
Paste the Cortena MCP into Claude, ChatGPT, or your assistant of choice.
Start asking questions
Ask for the reports and analysis you need. Answers in seconds.
- Cortena MCP access
- DATEV connection
- Works with any AI assistant
- Full access, no limits
- Cancel anytime
Questions, answered.
MCP (Model Context Protocol) is an open standard that lets an AI assistant connect securely to an outside tool or data source. Cortena runs one so your assistant can reach your finance data.
It is the bridge between your DATEV data and your AI assistant. Once added, the assistant can answer questions and build reports from your live accounting data.
Any assistant that supports MCP, including Claude, ChatGPT, Gemini, Grok, Mistral, and Perplexity. You use the one you already prefer.
No coding. Create your account, connect DATEV, and paste the Cortena MCP into your assistant. You are live in minutes.
Your data stays in the EU, hosted in Germany, and is never used to train AI models. Cortena is GoBD-aligned, and you decide what the assistant can access.
Anything your DATEV data can answer: cost-centre reports, budget vs actual, open payables and receivables, cash due, and more. The use cases above show a few.
€99 a month, with a 7-day free trial so you can test it on your own data first. Full access, cancel anytime.
You need DATEV Buchungsdatenservice and Datenservice Export Rechnungswesen enabled. If you don't have them yet, you can request access directly from DATEV or through your tax advisor.
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Cortena MCP is in early access. Add your details and we'll create your access right away.