Guides on EU VAT validation, VIES downtime and IBAN checks.
What it actually takes to validate an IBAN (mod-97, per-country length and structure, bank code extraction, BIC lookup) and how to do it with a single API request.
#fintech#api#payments#javascript
Looking for a VIES alternative? There is no second source of EU VAT truth, but there is a better way to use the official one. Here's a checklist for picking a reliable VAT validation API.
#vat#api#saas#architecture
A practical guide to checking EU VAT numbers from your code: formats, VIES (and HMRC for the UK), handling errors, caching, and sample code in curl, JavaScript and Python.
#api#saas#tutorial#python
Why VIES outages break checkouts and invoicing, what the MS_UNAVAILABLE error really means, and a caching + fallback pattern that keeps VAT validation working.
#vat#api#ecommerce#webdev