<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"><channel><title>Payments Atlas</title><description>Field guides to payment gateways, banking APIs and fintech regulation across the Gulf, EU and US — written from working integrations, with runnable .NET code.</description><link>https://paymentsatlas.com/</link><item><title>Validating webhook signatures in ASP.NET Core</title><link>https://paymentsatlas.com/guides/webhook-signature-validation-aspnet-core/</link><guid isPermaLink="true">https://paymentsatlas.com/guides/webhook-signature-validation-aspnet-core/</guid><description>The raw-body trap that breaks HMAC verification in .NET, why == is a vulnerability, and how three real providers sign — including one that does not.</description><pubDate>Mon, 27 Jul 2026 00:00:00 GMT</pubDate></item><item><title>FAPI 2.0: what compliance actually requires you to build</title><link>https://paymentsatlas.com/analysis/fapi-2-what-you-must-build/</link><guid isPermaLink="true">https://paymentsatlas.com/analysis/fapi-2-what-you-must-build/</guid><description>The MUST-level requirements of the FAPI 2.0 Security Profile, and which of your existing OAuth assumptions each one breaks.</description><pubDate>Mon, 27 Jul 2026 00:00:00 GMT</pubDate></item><item><title>UAE open finance pricing: what the API Hub actually costs</title><link>https://paymentsatlas.com/analysis/uae-open-finance-api-costs/</link><guid isPermaLink="true">https://paymentsatlas.com/analysis/uae-open-finance-api-costs/</guid><description>The published UAE fee schedule, the page allowances on data sharing, and the pricing rules that quietly constrain how you build.</description><pubDate>Mon, 27 Jul 2026 00:00:00 GMT</pubDate></item></channel></rss>