How do I integrate Exact Online NL API with my application?

Apideck provides a unified Accounting API that makes Exact Online NL integration simple. Sign up for free, enable Exact Online NL in your dashboard, and use our Vault component to let your users connect their Exact Online NL accounts. We handle OAuth authentication, token refresh, and data normalization automatically.

What Exact Online NL data can I access through Apideck?

Our Exact Online NL integration supports 12+ data models including sales invoices, accounts customers, accounts suppliers, and purchase invoices. You can perform read and write operations through our unified API, working with the same code structure across all accounting platforms.

How does Exact Online NL authentication work with Apideck?

Apideck's Vault handles Exact Online NL authentication completely. Your users connect their Exact Online NL accounts through our secure, white-label UI. We manage OAuth tokens, automatic refresh, and credential storage, so you never have to implement Exact Online NL's auth flow yourself.

How do I keep my app in sync with Exact Online NL?

While Exact Online NL has limited native webhook support, Apideck provides polling-based sync and virtual webhooks to keep your data current. Configure your sync frequency in the dashboard, and we'll handle fetching updates from Exact Online NL.

Why use Apideck instead of Exact Online NL's direct API?

Using Apideck's unified API instead of Exact Online NL's direct API saves significant development time. You get normalized data models, automatic auth handling, and the same integration code works with 200+ other apps. When Exact Online NL updates their API, we handle the changes so your integration keeps working.

How quickly can I build a Exact Online NL integration?

Most developers ship a working Exact Online NL integration within a day using Apideck. Sign up for a free trial (no credit card required), enable Exact Online NL, and make your first API call within minutes. Our SDKs for Node.js, Python, and other languages make implementation straightforward.

Exact Online NL Accounting API integration

Build Exact Online NL Accounting integrations in minutes, not months. One API to sync permissioned accounting data with Exact Online NL and 27+ other apps.

12+ data models

SOC 2 certified

Free trial

Requested Data Access

The application is requesting permission to access the following data.

Preview rotates every 4.5s

invoice_number

Read

amount

Read

due_date

Read

By authorizing you agree to grant the application access to the data listed above.

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Integration Guide

How to integrate Exact Online NL API in 3 steps

Build a production-ready Exact Online NL Accounting API integration in minutes, not months. No OAuth headaches, no maintenance burden.

Step 01

Create your Apideck account

Sign up for free and enable Exact Online NL in your Apideck dashboard. Configure which accounting data your app needs access to.

Start your free trial
2,500 API calls included
No credit card required

Step 02

Connect Exact Online NL via Vault

Use our pre-built Vault component to let your users securely connect their Exact Online NL account. We handle OAuth, token refresh, and credential storage.

White-label auth UI
Automatic token refresh
SOC 2 certified storage

Step 03

Start syncing accounting data

Make API calls to read and write accounting data from Exact Online NL. Use the same code to connect 200+ other apps.

Normalized data models
Real-time webhooks
Full CRUD support

Start Exact Online NL integration

Free trial • No credit card required • Setup in under 5 minutes

Code Example

Exact Online NL API integration code

Integrate Exact Online NL with just a few lines of code. Our unified Accounting API normalizes data across 200+ integrations, so you write once and connect everywhere.

Normalized responses — same data structure for all accounting apps
Official SDKs — Node.js, Python, and more with TypeScript support
Full documentation — interactive API reference with Exact Online NL-specific examples

View Exact Online NL API documentation →

import { Apideck } from '@apideck/node'

const apideck = new Apideck({
  apiKey: process.env.APIDECK_API_KEY,
  appId: process.env.APIDECK_APP_ID,
  consumerId: 'user-123'
})

// List invoices from Exact Online NL
const { data } = await apideck.accounting.invoicesAll({
  serviceId: 'exact-online-nl'
})

console.log(`Found ${data.length} invoices`)

Explore all SDKs ↓

Why integrate Exact Online NL with Apideck?

Build a production-ready Exact Online NL integration with enterprise-grade reliability

Ship Exact Online NL integration fast

Go live with Exact Online NL in days, not months. Our unified Accounting API handles authentication, data normalization, and error handling so your team can focus on building features.

12+ Exact Online NL data models

Access 12+ data models for Exact Online NL including invoices, customers and bills. Read and write data through a single standardized API.

Real-time webhook coverage

Keep your product synchronized with Exact Online NL using webhooks. Receive push updates for invoices, customers, payments, and more without polling.

API Resources

Push and pull Exact Online NL data

Use our Unify API to get real-time data from Exact Online NL

View API Reference

Technical Specifications

Exact Online NL API integration details

Everything you need to know about integrating Exact Online NL through our unified Accounting API.

Authentication

OAuth 2.0

Secure token-based authentication

Data Models

12+ resources

Access 12+ normalized data models

Webhooks

Polling supported

Scheduled polling for updates

Security

SOC 2 Type II

Enterprise-grade security certified

Token Management

Automatic refresh

Never worry about expired tokens

API Format

REST + JSON

Standard REST API with JSON responses

Exact Online NL direct API vs Apideck unified API

Feature	Direct Exact Online NL API	Apideck Unified API
OAuth implementation	Build from scratch	Handled by Vault
Token refresh	Manual handling	Automatic
Data normalization	Exact Online NL format only	Normalized across 200+ apps
Error handling	Platform-specific	Unified error codes
Rate limit management	DIY implementation	Built-in throttling
Maintenance	Ongoing updates required	We handle API changes
Additional integrations	Separate work each	Same code, 200+ apps

View complete Exact Online NL API reference →

Use Cases

What integrations can you build with Exact Online NL?

Power these accounting workflows with Exact Online NL data through our unified API.

Accounts Payable

Sync vendor bills, approvals & payments across accounting systems in real time.

Learn more

Accounts Receivable

Push invoices, payment statuses & credits into users' ledgers.

Learn more

Business Lending

Use accounting data to get smarter risk assessments and lending decisions.

Learn more

Expense Management

Pull data to automate spend reporting and reconciliation.

Learn more

Payroll Accounting

Streamline payroll data flow between HR systems and accounting platforms seamlessly.

Learn more

Procurement

Automate purchase orders, vendor management, and spend tracking across ERP and accounting systems.

Learn more

Tax Automation

Connect to accounting data to accurately calculate, file, and reconcile sales tax.

Learn more

Carbon Accounting

Embed sustainability metrics by syncing financial data for carbon footprint tracking and ESG reporting.

Learn more

View all use cases

Exact Online NL Integration FAQ

Common questions about integrating Exact Online NL with your application

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