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From e-invoicing APIs to open-source testing - our products scale with your requirements.

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invoice-api.xhub.io
The Stripe of E-Invoicing APIs

REST API for e-invoices: generate, parse and validate XRechnung and ZUGFeRD – KoSIT-validated, GoBD-compliant, processed in the EU. 14 formats, 37 countries, Peppol from 2027. Free tier with 20 API calls.

Features

  • 6 APIs: Generator, Parser, Validator, Converter, Formats, Attachments
  • 14 formats across 37 countries – XRechnung, ZUGFeRD, UBL
  • KoSIT-validated, EN 16931, processed in the EU
  • No-code: n8n, Airtable, HubSpot

Starting at Free · from €18/mo

Try the API
Available
nanook.xhub.io
Open-source test data generator

Test data from equivalence class tables. Excel, LibreOffice or Google Sheets as input, JavaScript for custom generators.

Features

  • Test data from equivalence class tables
  • Excel, LibreOffice or Google Sheets input
  • Custom data generators (JavaScript)
  • MIT license
Visit nanook.xhub.io
Available
bitdiver.xhub.io
Open-source end-to-end testing

Time-dependent end-to-end testing via YAML configuration. CI/CD-ready and designed for complex test flows.

Features

  • Time-dependent test flows
  • YAML-based configuration
  • CI/CD-ready
  • MIT license
Visit bitdiver.xhub.io
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Our Services

  • E-invoicing integration
  • Custom API development
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  • Mobile E2E testing

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Founded 2021 · Frankfurt am Main · HRB 125402