Stripe & Payment Integrations
Integration Review
Audit your live Stripe environment - reporting accuracy, fee structure, FX, security and conversion. Backed by a written report and a prioritised roadmap.
Most production Stripe integrations work. The question we get asked is whether they're going to keep working at five times the volume, or under a new product line, or after the engineer who built it leaves. An Integration Review answers that question - with evidence, not opinion.
Each review is a fixed-scope engagement led by a Stripe-certified architect. We work through your codebase, dashboard configuration and operational runbooks against a structured checklist of common production issues, and deliver a written report your engineering and finance teams can act on independently.


Reporting accuracy
Reconciliation against your finance system, metadata coverage, dispute and refund pathways - and the question of whether your Stripe data and your accounting agree at month-end.
Fee structure & FX
Effective rate vs what you should be paying, FX optimisations on multi-currency flows, and the savings that often pay for the engagement many times over.
Architecture & security
Webhook reliability, idempotency, PCI scope, Connect configuration, secret management, and the quiet failure modes that turn into incidents.
Conversion & checkout
Payment Element adoption, payment-method coverage by region, 3DS tuning, declined-card recovery - uplift available from changes that take an afternoon to deploy.
A written report your team can act on independently
Structured as a prioritised roadmap rather than a list of complaints. Each finding comes with severity, recommended action, estimated effort and the rationale behind the call - so engineering can pick it up without re-deciding what matters.
Most reviews uncover one or two architectural risks that would cost more to fix in production than the entire engagement, plus a steady stream of smaller wins that accumulate into meaningful operational improvement.
SAMPLE FINDING
Webhook handler is not idempotent on customer.subscription.updated
Severity
High
Effort
~2 days
Risk
Double-write under retry
Status
Recommended
Recommendation: introduce an event-id idempotency key against your webhook log, drop duplicate deliveries before they reach the subscription state machine.
What an Integration Review tends to surface
Square1 is the world's first verified Stripe Partner agency, with Specialised Partner status across Payments and Billing - and a team holding 12+ Stripe certifications across architecture, integration and reconciliation.
Deep Expertise, Backed by Credentials
Square1 is the world's first verified Stripe Partner agency, with Specialised Partner status across Payments and Billing - and a team holding 12+ Stripe certifications across architecture, integration and reconciliation.
Payments
Specialized Partner
Billing
Specialized Partner
Terminal
Specialized Partner
Financial Services
Specialized Partner
Related Stripe Work
A sample of the Stripe integrations and payment platforms we’ve helped build.
Latest News & Insights
Recent project news, team updates, and ideas worth sharing.







