Unlock the Full Potential of DATEV with legacy-use's API Solutions

Transform your DATEV workflows with seamless API integrations. Automate processes, eliminate manual tasks, and connect DATEV to your entire business ecosystem.

DATEV
legacy-use API
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Your Tools

DATEV Use Cases Automated with API

📊

Accounting Data Import

Bring ERP/shop/Excel exports into Kanzlei-Rechnungswesen — clean, fast, and zero retyping.

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Bank Reconsilidation

Grab statements from your bank portal and reconsile into DATEV — perfect when no bank integration is available

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Outstanding items reminders

Automatically send reminders for items that haven't been booked yet to clients

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LODAS Automation

Automatically run your LODAS/LuG payroll and handle payslip distrubution emails

How legacy-use Works

Connect to your system through your usual remote working setup, show us once how data flows, then interface everything via our clean API

1

Connect Remotely

Use your existing VPN & Remote Desktop setup to connect to your DATEV system—no changes to your infrastructure needed.

2

Show Us Once

Demonstrate how data is accessed or written in your system. Our AI learns the patterns and creates reliable automation workflows.

3

Use Our API

Interface with your DATEV system through our clean, modern REST API. No more screen scraping or fragile RPA solutions.

Step 1: Create Job

POST /api/targets/{target_id}/jobs/ REST API
X-API-Key: your_api_key Header
{
  "api_name": "DatevGetAccount",
  "parameters": {
    "AccountId": "1370"
  }
}
Response
{
  "id": "60510734-ab36-45d9-9e1a-0744569d29b5",
  "target_id": "0dcb7849-87bd-4bd7-b97c-c4d3947fad31",
  "session_id": "6624e0bf-464b-4070-a752-c2120adfa275",
  "api_name": "DatevGetAccount",
  "status": "pending",
  "created_at": "2025-08-14T15:54:13.079826",
  ...
}

Step 2: Poll Job Status

GET /api/targets/{target_id}/jobs/{job_id} REST API
X-API-Key: your_api_key Header
Response (when completed)
{
  "id": "60510734-ab36-45d9-9e1a-0744569d29b5",
  "status": "success",
  "result": {
    "entries": [
      {
        "datum": "01.01.2025",
        "gegenkonto": "1800",
        "umsatz_soll": 3.59,
        "buchungstext": "Ionos",
        "umsatz_haben": 0
      }
    ]
  },
  "completed_at": "2025-08-14T15:55:24.192751",
  "duration_seconds": 71.112925,
  ...
}

Connect DATEV with Your Favorite Tools

Once you have API access to DATEV, these powerful automation platforms make integration effortless

Zapier

Connect DATEV with 5,000+ apps without coding. Create automated workflows (Zaps) that trigger actions based on DATEV events.

n8n

Open-source workflow automation with full control. Build complex DATEV integrations with custom logic and data transformations.

Make.com

Visual workflow builder for complex DATEV automations. Design sophisticated scenarios with conditional logic and error handling.

Microsoft Power Automate

Enterprise-grade automation platform that integrates seamlessly with the on-prem Microsoft ecosystem, Microsoft 365 and Azure.

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Building a SaaS Tool?

Connect your startup's SaaS application to any legacy system with legacy-use. Perfect for medical, HR tools, or business software that needs to integrate with established enterprise systems.

Integration in minutes Handles subtile changes in target systems GDRP compliant
Sign up for free

Why Choose legacy-use Over RPA Solutions?

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Much More Robust

Our AI-powered system handles UI differences and has reasoning capabilities. Unlike brittle RPA bots that break with every interface change, legacy-use adapts intelligently to variations in your DATEV system.

☁️

No Local Installation Needed

Works seamlessly across your existing remote access solutions—VPN, Remote Desktop, or any setup you already use. No need to install software on every machine or change your infrastructure.

🎯

Easier to Setup

Simply teach the system by demonstrating the process once—no programming required. Unlike RPA solutions that need expert developers to code complex workflows, anyone can train legacy-use.

Performance & Speed

Process thousands of records efficiently through direct API access. No screen scraping delays or UI rendering bottlenecks—just fast, reliable data processing.

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Low Maintenance

Set it and forget it. Our intelligent system adapts to minor changes automatically, eliminating the constant maintenance cycles that plague traditional RPA implementations.

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Cost-Effective

Lower total cost of ownership with no specialized RPA expertise required. Reduce licensing fees, infrastructure costs, and ongoing maintenance expenses.