API & systems integration
We design and build APIs, and integrate the third-party services your product depends on — payments, authentication, messaging, and data pipelines.
About this service
Most software does not work alone. Payments go through a gateway, sign-in may rely on an outside provider, customers expect email or SMS updates, and your data often needs to move between systems. We design and build the APIs and connections that make these parts work together reliably.
We build REST and GraphQL APIs with Node.js, Express, PHP Laravel and Prisma, and document them clearly so your other developers or partners can use them. We integrate payment gateways, secure authentication and user accounts, and notification services such as email and SMS for appointment or order updates. Each integration is built to cope with failures, with sensible error handling and logging so problems are easy to trace.
We also help when systems that already exist need to be joined up: importing and synchronising data, producing combined reports, or rebuilding a back end that has become slow or hard to change. Security is considered throughout, including how keys, passwords and personal data are stored and sent between systems.
What's included
- REST and GraphQL APIs with clear documentation
- Payment gateway integration
- Secure authentication and user accounts
- Email and SMS notifications, such as appointment or order updates
- Data import, synchronisation and reporting between your systems
Ideal for
Products that need to talk to other systems, or a back end that needs to be rebuilt to scale.
Tools we use
Have a project in mind?
Tell us what you're building. We'll reply with next steps within one business day.