Software
API Development & Integration in the UK
Connecting the tools you already use, and building custom APIs when you need your own systems to expose data securely to others.
Quick Answer
ZAVYANS provides API Development & Integration for businesses across the UK, remotely from our offices in Islamabad and Arlington, Virginia, with calls in your business hours. The work typically covers webhook & automation setup, custom API development and legacy system integration, planned around local rules from the start, with reporting and invoicing in GBP.
Why UK businesses work with us
Scheduled calls in GMT/BST, plus written weekly reporting
Work planned around UK privacy and accessibility rules from the start
One team running marketing, automation and software, instead of separate vendors
Reporting and invoicing in GBP, with no local office overhead added to your cost
Why your systems need to talk to each other
Most businesses run several separate tools, a CRM, a website, an accounting system, a booking platform, that do not talk to each other by default. Staff end up copying data between them by hand, which wastes time and causes errors. API development and integration connects these systems so data flows automatically.
We build integrations between the tools you already use, and custom APIs when you need your own systems to expose data to others.
What's included
Webhook and automation setup
Triggering actions automatically when something happens in another system.
Custom API development
Building APIs that let your own systems, or partners, access your data securely.
Legacy system integration
Connecting older systems that were not built to work with modern tools.
API security
Making sure data shared between systems is properly authenticated and protected.
Third-party integrations
Connecting your CRM, payment gateway, accounting or booking tools together.
Documentation and support
Clear documentation so your team, or partners, can actually use what is built.
Working with UK businesses
We work with UK businesses remotely from Islamabad, which is four to five hours ahead of the UK, so our working day overlaps your morning and early afternoon. Calls are scheduled in UK hours, reporting and invoicing are in GBP, and there's no UK office overhead built into our fees. We don't have a UK office, and we say so plainly.
API Development & Integration rules in the UK
Websites and apps must handle personal data under UK GDPR and cookies under PECR, and public-sector sites must also meet accessibility regulations.
What's different about API Development & Integration in the UK
UK websites need to be fast, accessible and clear about cookies and personal data.
- WCAG 2.2 AA accessibility built in
- Payments through Stripe, PayPal, GoCardless or Worldpay, with VAT handled
- Cookie consent that meets UK GDPR and PECR
Integration work that pays for itself
The value of integration work is usually easiest to see in hours saved: an order that used to be re-typed into three systems now flows automatically. We scope integration projects around where your team is currently doing the most manual, repetitive work.
Cities we serve in the UK
Who we help
SaaS companies
Building APIs that let customers or partners integrate with your product.
E-commerce
Connecting stores, payment gateways and inventory systems.
Real estate agencies
Connecting CRM, listings and booking systems.
Healthcare providers
Connecting booking, records and billing systems.
How we work
- Step 1
Audit
We review what you have today against the result you actually want.
- Step 2
Build
Tracking, creative, pages or systems go in before spend or launch.
- Step 3
Launch and test
Work goes live and is tested in rounds with a clear weekly read-out.
- Step 4
Grow
Budget and effort follow what is actually producing results.
Frequently asked questions
Do you have an office in the UK?
No. We serve UK businesses remotely from our offices in Islamabad, Pakistan and Arlington, Virginia (USA), with scheduled calls in your time zone, written weekly reporting and invoicing in GBP.
Do you provide documentation for our team?
Yes, clear documentation is part of every project so your team can maintain and extend it.
How do you keep integrated data secure?
Through proper authentication and access controls on every API connection we build.
Why choose ZAVYANS for API development?
We scope integration work around where your team is currently doing the most manual, repetitive data entry, so the value is measurable in time saved.
What rules apply to API Development & Integration in the UK?
Websites and apps must handle personal data under UK GDPR and cookies under PECR, and public-sector sites must also meet accessibility regulations. We plan the work with this in mind, and you approve anything customer-facing before it goes live.
Can you connect tools we already use?
Yes, connecting existing tools like your CRM, payment gateway or accounting software is the most common request.
Do you build custom APIs from scratch?
Yes, when you need your own systems to expose data securely to another system or partner.
Which cities in the UK do you work with?
Businesses anywhere in the UK, including London, Manchester, Birmingham, Leeds, Glasgow, Liverpool, Edinburgh, Bristol, Sheffield and Newcastle. Campaigns and content can be targeted to specific cities or regions.
Which countries do you work in?
We work with clients across Pakistan, the United States, the United Kingdom, Canada, Australia, the UAE and Saudi Arabia.
What do you need from me to start?
A list of the systems you want connected and the manual process you are trying to eliminate.
Can you integrate with older, legacy systems?
Yes, we work with legacy systems, though the approach depends on what access they allow.
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Let's build something
Ready to grow with API Development & Integration in the UK?
Tell us what you're trying to grow. We'll come back with a plan, not a sales pitch.
or email info@zavyans.com