API Integration Services
API integration services connect the tools your business already uses so data moves between them without manual exports. We link CRM, ERP, payment, shipping and marketing systems with proper error handling and monitoring.
How we approach API integration services
Integrations usually fail silently. A field changes in one system, sync stops, and nobody notices until orders or invoices go missing. Common problems include no retry logic, duplicate records created by repeated webhooks, poor field mapping, and integrations built on unsupported plugins that break when a vendor updates its API.
Step one is mapping the data flow: which system owns each record, what triggers a sync, what fields move and what happens when something fails. Then we build integrations directly through APIs, middleware such as Zapier, Make or n8n, or a custom service when volumes require it. Each integration includes retries, duplicate checks, logging and alerts. We test with real scenarios and document the setup so your team knows what connects to what.
It suits businesses running Zoho, Salesforce, HubSpot, Tally, SAP, Shopify, Razorpay or shipping platforms that do not talk to each other.
- Working software at the end of every sprint
- Automated testing and clean documentation
- Support and improvements after launch
Working with Nians
One strategist owns your plan and brings in the specialists it needs. You hear from us every week, and every piece of work starts with an audit.
What our API Integration Services include
The usual building blocks. We drop what you don’t need and add what you do.
Discovery & scoping
User stories, priorities and a realistic roadmap.
Architecture
Scalable, secure foundations chosen for your team.
Sprint-based development
Working software every two weeks.
QA & testing
Automated and manual testing before every release.
DevOps & deployment
CI/CD, monitoring and cloud infrastructure.
Support & evolution
SLAs, fixes and new features after launch.
How we deliver
You see the plan before any work starts.
Discovery
User stories, priorities and a realistic first release.
Architecture
Technology choices that suit your team and your scale.
Sprints
Working software every two weeks, demoed to you.
QA
Automated and manual testing before each release.
Maintain
Monitoring, updates and a clear handover if your team takes over.
You may also be interested in
Solutions this service is part of
Problems it helps solve
Who usually asks for it
Industries we deliver it in
Case studies & resources
Real-world results and practical reading to help you plan your next step.
Client stories
How similar work has played out for other businesses.
Helpful resources
Guides, tools and articles our team recommends on this topic.
Questions we often hear
Straight answers to the things clients ask us most. If yours isn’t here, just ask.
Should I use Zapier or a custom integration?
What happens if an integrated system changes its API?
Do we own the code?
Let’s plan your next stage of growth.
A free 30-minute session with a senior Nians strategist. You leave with a prioritised plan, whether or not you work with us.