Beyond compliance. Protecting your API integrations, tokenisation, and customer data in the age of Stripe, Adyen, and AWS.
Card entry moved on years ago. Your business now runs on Pay-by-Link, integrated terminals and cloud-native APIs — but the way most organisations think about PCI compliance hasn't kept up.
Hyperscalers don't see PCI data. AWS and Azure protect your infrastructure, but they aren't scanning your application logs for leaked card numbers — that's outside their remit, and outside their liability.
SDKs aren't silver bullets. Pre-built libraries from Stripe or Adyen are secure by design, but a misconfigured implementation, an over-permissive webhook, or a debug log left switched on can undo all of that.
Compliance is no longer static. An annual assessment tells you nothing about the API vulnerability introduced in last week's deploy.
We bridge the gap between modern payment technology and PCI DSS v4.1 requirements. We don't just tell you what the standard says — we help you secure how your engineering team actually builds against it.
That means scanning the endpoints your checkout flow depends on, tracing where card and token data actually travels through your logs and databases, and reviewing the handoff points where legacy systems meet modern cloud APIs.
The result is a payment architecture that's defensible on paper and, more importantly, resilient in production.
How Metasure manages this for you: The dashboard above reflects our AI-driven continuous monitoring layer, running autonomously across your API estate — scanning endpoints, tracing token events and inspecting logs in real time, then triaging every finding by severity. Low-risk noise is filtered and resolved automatically; anything the model flags as critical or high is escalated to a human consultant for verification before it reaches you. It's a risk-based, human-in-the-loop model: automation handles the volume, our experts own the judgment calls — so the alerts that land on your desk are the ones that genuinely matter, surfaced and prioritised the same day rather than at next year's audit.
60-Second Self-Assessment
Run through the same checks our consultants make on every engagement. Tick what your setup already covers — the gaps are exactly where API breaches start.
What We Deliver
Traditional auditors don't understand APIs. Developers don't always understand PCI. Most engagements fall into one camp or the other — and the gap between them is exactly where risk hides.
We sit at the intersection: consultants who can read a QSA's requirement and a pull request with equal fluency, and translate between the two without losing precision on either side.
We work across Stripe, Adyen, Square, Worldpay and custom-built gateways — no preferred partner steering the advice.
Move beyond annual reports with real-time alerting on sensitive data exposure as it happens.
We help design your payment flow to minimise PCI scope from day one, not retrofit it after launch.
Vendor Agnostic
"We thought our Stripe integration was secure. Metasure found three critical vulnerabilities in our logging that could have exposed customer data."
CTO — Retail Operation
Don't wait for a breach to discover your API is leaking data. Book a discovery call and we'll map your exposure.