Look Up Any Dutch Business
Instantly
Auto-fill KVK data, addresses, and VAT numbers with our API or drop-in widget. Includes EU-wide VAT/VIES validation. Built for developers and businesses that work with Dutch companies.
Widget
Add a KVK lookup field to any form with one script tag. No coding required.
API
One endpoint for KVK data, address, VAT validation, and trade names. REST, JSON, done.
GET /v1/lookup/12345678
200 OK
{
"name": "Bakkerij De Windmolen B.V.",
"address": {
"city": "Amsterdam"
},
"vatValid": true
} Why KVKBase?
One API call
KVK data, address, VAT number, and VIES validation. No more juggling separate services.
Drop-in widget
Add a KVK lookup field to any form with one script tag. Works with Shopify, WordPress, or your own site. No coding required.
Fast and reliable
Runs on Cloudflare's edge network. Sub-50ms response times with built-in caching.
Free to start
50 free tokens per month. Only pay when you grow.
Always up-to-date
Data straight from the Dutch Chamber of Commerce (KVK) and EU VIES. Automatic fallbacks on outages.
Great documentation
Clear docs, code examples, and a quick start guide. Built by developers, for everyone.
Simple, transparent pricing
No commitments. Upgrade or downgrade whenever you want.
Free
- 50 tokens/month
- Enriched company data
- VAT/VIES validation
- Widget
- 10 req/min
- Upgrade for more tokens
- Priority support
Starter
- 1.000 tokens/month
- Enriched company data
- VAT/VIES validation
- Widget
- 60 req/min
- Upgrade for more tokens
- Priority support
Pro
- 5.000 tokens/month
- Enriched company data
- VAT/VIES validation
- Widget
- 300 req/min
- Extra tokens on request
- Priority support
Ready to get started?
Start free. No credit card required. Upgrade whenever you want.
Create a free account