Integrations

Connect Your Tools

Clever Invoice integrates seamlessly into your existing infrastructure. Accountant, bookkeeping, payments – all connected.

Key Integrations

Available

DATEV Export

All booking data in DATEV-compatible format

  • DATEV Export
  • Receipt Images
  • Monthly Export
Available

E-Mail

Send invoices directly from Clever Invoice via email.

  • Custom Sender
  • Templates
  • Tracking
Available

REST API

Integrate Clever Invoice into your own applications with our comprehensively documented REST API.

  • RESTful Design
  • Webhooks
  • Documentation

All Integrations

Accounting

DATEV

Available

Export all booking data in DATEV format for your accountant.

DATEV-ExportBuchungssätzeBelegbilderASCII-Format

Lexoffice

Coming Soon

Sync invoices automatically with your Lexoffice accounting.

Auto-SyncKontenzuordnungBelegverknüpfung

sevdesk

Coming Soon

Connect Clever Invoice with sevdesk for seamless bookkeeping.

RechnungssyncKundendatenKategorisierung

Payment

Stripe

Coming Soon

Accept credit card payments directly on your invoices.

Card PaymentAuto-MatchingInstant Payment

PayPal

Coming Soon

Let your customers pay conveniently via PayPal.

PayPal-ButtonPayment MatchingBuyer Protection

Online-Banking

Coming Soon

Automatic payment matching with your bank account.

Auto-MatchingMulti-BankReal-time Sync

Communication

Gmail / E-Mail

Available

Send invoices directly from Clever Invoice via email.

E-Mail SendingTemplatesTracking

Automation

Zapier

Coming Soon

Connect Clever Invoice with 5000+ apps via Zapier.

WorkflowsTriggersMulti-App

Developer

REST API

Available

Complete API for custom integrations and automations.

REST APIWebhooksOAuth 2.0

Mobile

Mobile App

Coming Soon

Create invoices on the go with our mobile app.

iOS & AndroidOffline ModePush Notifications

Why Integrations Matter

Save Time

No more manual data transfer. Everything syncs automatically.

Avoid Errors

Automatic data exchange eliminates typos and transfer errors.

Work Productively

Focus on your core business, not administrative tasks.

For Accountants

Seamless Collaboration with Your Accountant

Clever Invoice makes working with your accountant easier than ever. Export all data in DATEV format and save yourself the manual compilation.

DATEV Export

All booking data in DATEV-compatible format

Receipt Images

PDF invoices automatically attached as receipts

Monthly Export

Automatic export at month-end

Accountant Access

Separate read-only access for your accountant

DATEV Export

Available in all plans

Buchungssätze (ASCII)
Belegbilder (PDF)
Debitorenstammdaten
Auto-Kontierung
Periodische Exports
# Create Invoice
POST /api/v1/invoices
{
"customer_id": "cust_123",
"items": [{
"description": "Consulting",
"quantity": 5,
"price": 100.00
}]
}
For Developers

Powerful REST API

Integrate Clever Invoice into your own applications with our comprehensively documented REST API.

RESTful Design

Intuitive endpoints following REST standards

OAuth 2.0

Secure authentication for your apps

Webhooks

Real-time notifications for events

Sandbox

Test environment for safe development

Ready to connect your tools?

Start now with Clever Invoice and use all available integrations.