Quickstart Guide


The VATlayer API is extremely easy to use. It only takes a few lines of code to make your first validation request. All registered users, whether on a free or paid plan, can use our Quickstart Guide to explore the full range of API functionalities with just one click.

  • Existing users: Access the Quickstart Guide below.
  • New users: Create an account and get started in minutes.

Step 1: Get Your API Access Key 

Sign up for a free VATlayer account at vatlayer.com and obtain your personal API Access Key

Get free API Access Key

This key authenticates your requests and ensures that you have access to the API features provided by your subscription plan.

2. Basic API Request Structure

All endpoints share a base URL of the form:

3. Example Endpoints

  • Validate a VAT number

    Example response:

  • Get VAT rate for a single country by country code

    Example response:

  • Get VAT rates for all EU member states

  • Calculate VAT-compliant price

    Example response:

4. Optional Parameters / Features

  • Use type parameter on the price endpoint to calculate with a reduced VAT rate (for specific product types). 
  • Use incl=1 if your amount already includes VAT and you want the API to perform a reverse calculation. 
  • JSONP support: append callback=CALLBACK_FUNCTION to the call if you need JSONP. 
  • Use format=1 to pretty-print the JSON response (useful for debugging).

 

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