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.

Get started free Read the docs

Widget

Add a KVK lookup field to any form with one script tag. No coding required.

KVK number
12345678
Company name
Bakkerij De Windmolen B.V.
Address
Herengracht 100, 1015 AA Amsterdam
VAT number
NL123456789B01

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. Want to follow changes? See company monitoring.

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.

Save up to 53%

Free

€0 /month
 
  • 50 tokens/month
  • Enriched company data
  • VAT/VIES validation
  • Widget
  • Company monitoring
  • 10 req/min
  • Upgrade for more tokens
  • Priority support
Get started free
Most popular

Starter

€9 /month
€108/year
  • 1.000 tokens/month
  • Enriched company data
  • VAT/VIES validation
  • Widget
  • Monitor 10 companies
  • 60 req/min
  • Upgrade for more tokens
  • Priority support
Start now

Pro

€29 /month
€348/year
  • 5.000 tokens/month
  • Enriched company data
  • VAT/VIES validation
  • Widget
  • Monitor 100 companies
  • 300 req/min
  • Extra tokens on request
  • Priority support
Start now

Business

€99 /month
€1190/year
  • 50.000 tokens/month
  • Enriched company data
  • VAT/VIES validation
  • Widget
  • Monitor 1,000 companies
  • 1.000 req/min
  • Bulk enrichment of entire files
  • Priority support
Start now

All prices exclude VAT.

Enterprise

Unlimited lookups, custom rate limits, whitelabel widget, dedicated support with SLA. Tailored to your organisation.

Contact us

Ready to get started?

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