Commerce

VAT / GST for 16 major economies (UK, EU, Australia, Canada, Japan, Singapore, UAE, India, and more) at the verified 2026 standard rate — add or remove.

VAT / GST for 16 major economies (UK, EU, Australia, Canada, Japan, Singapore, UAE, India, and more) at the verified 2026 standard rate — add or remove.

Payment: x402 ($0.05 USDC on eip155:8453). Call unpaid to receive an HTTP 402 with requirements, then retry with the PAYMENT-SIGNATURE header. Method: add: vat = amount*rate/100, gross = amount+vat; remove: net = amount/(1+rate/100), vat = amount-net

post/v1/commerce/vat-gst

Request

  • Base URL: (relative, and it does not resolve against the document’s source URL)
  • URL: /v1/commerce/vat-gst
  • Auth: none declared

Request body

countrystring required

ISO country code, e.g. GB, DE, AU, SG, IN

amountnumber required
mode'add' | 'remove'

Response

Verified result + provenance (formula, sources, reproducible SHA-256 hash).

Changes

No recorded changes to this operation across all 1 revision of this API.