Outsourced compliance, operations, treasury & growth teams for regulated fintechs in the UK, EU, US and Canada

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Technology & IT Governance

API integration support that gets partners live faster

We coordinate integrations with payout partners, banks, KYC and screening providers: requirements, documentation review, testing, go-live and handover to operations.

At a glance

Requirements gathering

Documentation review

Test planning

UAT management

Supporting fintechs in the UK, EU, US and Canada

Overview

Integrations fail in the gaps between teams

A new payout partner or KYC provider can unlock growth, but integrations often stall. Requirements are unclear, test environments are incomplete, edge cases are missed and operations teams are not ready on launch day.

Hilix acts as the integration coordinator. We gather business and compliance requirements, review partner API documentation, prepare test cases including failure scenarios, manage UAT, prepare operational procedures and run go-live checklists so launches are smooth.

What’s included

Everything included in API Integration Support

Requirements gathering

Business, operational and compliance requirements documented.

Documentation review

Partner API specs reviewed for gaps and questions.

Test planning

Test cases including errors, timeouts, returns and status changes.

UAT management

Test execution, defect tracking and sign-off.

Go-live readiness

Operational SOPs, monitoring and go-live checklists.

Hypercare and handover

Post-launch monitoring and handover to business as usual.

Who this is for

  • Remittance firms adding payout partners
  • Fintechs switching KYC or screening providers
  • Businesses integrating new banking partners
  • Teams without a dedicated project manager

What you receive

  • Integration requirements document
  • Test plan and results
  • Defect log
  • Go-live checklist and SOPs
  • Post-launch review

How we work

How we strengthen your technology governance

Review

We assess current systems, vendors, access, change and incident practices.

Document

Policies, procedures, registers and plans written for your environment.

Embed

Processes put into daily use with your engineering and operations teams.

Test and report

Controls tested, exercises run and results reported to leadership.

FAQ

API Integration Support: common questions

Do you write code?

Our focus is coordination, requirements, testing and operational readiness. Development is done by your engineers or vendor.

Which integrations do you support?

Payout partners, banks, payment processors, KYC, KYB, screening, monitoring and CRM or helpdesk tools.

Can you test failure scenarios?

Yes. Testing returns, rejections, timeouts and duplicates is one of the most valuable parts of our work.

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Free 30-minute consultation

Tell us where it hurts. We will show you how a seasoned fintech team fixes it.

Compliance backlog, a regulator letter, a new corridor, stalled growth or a support queue that will not shrink. Share it with us and get a clear scope, timeline and proposal within 48 hours.