See llms.txt for all machine-readable content.

Back to integrations

Integrate Coretool with 2,000+ apps and services

Unlock the full potential of Coretool and n8n’s automation platform by connecting Coretool’s capabilities with over 2,000 apps, data sources, services, and n8n’s built-in AI features.
 
Need something that’s not covered yet?
 
Use n8n’s pre-authenticated HTTP Request node to create new connections, giving you the flexibility to build powerful automations on any stack.

Get Started Build a node and get it verified
Coretool
Created by
Coretool
Last update
2 days ago

Coretool integration

is built and maintained by our partners at Coretool and verified by n8n. That means it’s solid, safe, and ready to help you tap into some great capabilities.

Coretool

About Coretool

Create compliant German e-invoices (ZUGFeRD, XRechnung) straight from your workflows, validate incoming e-invoices and check Leitweg-IDs before billing public authorities. For every business, freelancer and self-employed professional in Germany and the EU. Free test key at coretool.de.

Get to know more about Coretool

Related categories

What can you do with Coretool?

Check a Leitweg-ID

Check a German Leitweg-ID (routing ID for public-sector XRechnung) including its check digit

Create an E-Invoice

Create a ZUGFeRD PDF or XRechnung XML from invoice data and return it as a binary file

Get Usage

Return plan and remaining calls of the API key (free)

Validate an E-Invoice

Validate a ZUGFeRD PDF or XRechnung XML with the KoSIT validator and return findings

Start using

How to install Coretool and use it in your n8n workflows

Verified nodes need a quick setup by an instance owner first, but after that, everyone on the instance can start using them in their workflows. Learn more here.

Sign in to n8n, open the editor, and click + in the top right to open the Nodes panel

Search for Coretool using the search bar. Look for the version marked by a badge Verified. Then, select install.

Once Coretool is installed, just drag, drop, and connect it like any other node in a workflow.

The n8n editor with the Nodes panel open

Resources for Coretool

Trusted by teams building smarter workflows.

Connect Coretool with your company’s tech stack and create automation workflows

Contact Sales

  • n8n makes complex workflows easy to build, and versatile enough for me to add my own 'secret sauce.'

    Danny Melamed

  • I have found the holy grail of automation.

    Luisa Vidal

  • n8n’s integration with third-party services is absolutely mind-blowing. It’s like a Swiss army knife for automation.

    Felix Leber

  • n8n is the tool that turns 'I have an idea' into 'it's running in production' faster than anything else.

    Ric Neves

  • Anything is possible with n8n. I think the cloud version is great, they are doing amazing stuff.

    Robyn Tindall

  • n8n’s integration with third-party services is absolutely mind-blowing. It’s like a Swiss army knife for automation.

    Nanbing

  • Thank you to the n8n community. I did the beginners course and promptly took an automation WAY beyond my skill level.

    Charley Mann

  • I love the flexibility of n8n and how it lets different applications work together in a single workflow.

    Ray Fourie

  • n8n is the glue that holds many of our systems together.

    Paul Cook

  • I can move fast, go deep when things get complex, and never feel boxed in.

    Ali Mazloum

Simple enough to 
understand + sophisticated 
enough to ship

Start building