API integration & development.
Your business data lives in systems that were never introduced to each other. We build the connections and the interfaces on top: front ends fed by live data, systems that sync instead of being retyped, and APIs of your own when you need one.
Connect my systems ↗Overview
Projects
Usage
Team
Billing
Systems that refuse to talk.
The problem
The CRM knows the customer, the ERP knows the stock, the website knows neither, and a person spends afternoons ferrying data between them. Every manual hop adds delay and a chance to mistype.
Our solution
We connect the systems through their APIs and build clean interfaces on the live data. Orders flow to accounting on their own, the website shows real stock, and the afternoons come back.
List the systems that should talk but do not. We will map the connections.
Book a free call ↗API services.
Connections, interfaces, and the plumbing between them.
Third-party integrations
CRMs, payment gateways, ERPs, courier systems, and marketing tools connected to your site or app.
API-driven front ends
Fast interfaces on React and Next.js that read and write live data from whatever runs your business.
Data synchronization
Two-way syncs that keep systems agreeing about customers, orders, and stock, with conflicts handled sanely.
Custom API development
REST and GraphQL APIs of your own, documented, versioned, and ready for partners or mobile apps.
Webhooks & automation
Events that trigger actions across systems, an order placed here, an invoice raised there, untouched by hand.
Reliability & monitoring
Retries, alerts, and logging, because an integration that fails silently is worse than none.
Not sure which of these you need? We will map it with you in a free call.
Book a free call ↗Integrations that just work.
Verified client feedback 5.0★★★★★
Based on 40+ Google reviews
★★★★★Good people, excellent understanding, timely delivered the project with topnotch perfections. First delivered frames archive 98% score on SEO parameter. Good work team, keep it up.
★★★★★The team completed our WordPress website in just 15 days, and honestly, there were almost no revisions required because they got everything right the first time. The design is clean, fast, mobile-friendly, and perfectly matches our brand.
★★★★★Their team was professional, responsive, and truly understood our vision. They delivered a sleek, user-friendly site that reflects our brand beautifully. The entire process was smooth, and the result exceeded our expectations.
★★★★★His deep knowledge of website development, technical SEO, and performance optimization helped us create a fast, user-friendly and search-engine-optimized website. What truly stands out is his attention to detail, quick response time, and continuous support even after project completion.
★★★★★The team consistently achieves goals on time and their response time is impressively quick whenever we need support. Their WebCrawl tool is truly a great addition — simple to use, insightful, and very effective for technical SEO analysis.
★★★★★Very satisfied with GSUITE's Gmail service, clean and professional work.
The integration stack.
The protocols, platforms and monitoring behind connections that keep working.
How an integration project runs.
Mapped, built, and monitored, with failure handled before it happens.
Three doors into API integrations.
The API integrations work is scoped together first, then quoted in writing.
Ongoing retainer
Quick task
Start small on API integrations if you want. Most clients do.
Five commitments behind API integrations.
Five things you can hold us to on API integrations.
Why our integrations stay connected.
Anyone can call an API once. The craft is in what happens when it fails at 2 a.m.
Built for failure days
Retries, queues, and alerts mean a provider outage becomes a delay, not a data loss.
Data stays reconciled
Sync rules are explicit about which system wins, so records never quietly drift apart.
Documented flows
Every connection is diagrammed and documented, so it is maintainable by any team, forever.
Fast on the front
The interfaces on top of the data stay quick, cached sensibly, and honest about loading states.
Compare your API integrations choices.
What each path really gives you on API integrations.
| What you are weighing | Freelancer | Big agency | GAP3GAP3 here |
|---|---|---|---|
| Hands on the work | A solo operator | A rotating team | A small senior pair of hands |
| Speed to start | Days to weeks | Weeks of process | A call this week, a quote in days |
| What it costs | Cheap until scope moves | Premium for the logo | One agreed number |
| Follow up | Hit or miss | Formal and slow | Fast, direct, human |
| Quality control | Depends on the person | Varies by staffing | Small team, reviewed work |
| If it goes wrong | You are stuck | Escalation ladders | You hold every account anyway |
Honest sizing beats a sales pitch: micro API integrations jobs go to freelancers, giant programs to giant agencies, the rest to teams like ours.
Integration work fits when.
Industries we serve.
Think GAP3 is the right fit for your team? Tell us about your project.
Start a project ↗API questions, answered.
Connecting two systems so they exchange data automatically: your website to your CRM, your store to your accounting, your app to a payment gateway. The manual retyping between them disappears.
Anything with an API, and most modern software has one: CRMs, ERPs, payment gateways, courier services, marketing platforms, and custom or legacy systems. File-based exchanges work as a fallback for the stubborn ones.
Yes. Stock levels, pricing, availability, and account data can render live on your site through a fast API-driven front end.
With our builds, the work queues and retries, an alert fires, and nothing is lost. Designing for the failure case is most of the engineering.
Yes. REST or GraphQL, versioned and documented with Swagger, ready for partners, mobile apps, or your own future front ends.
Explicit rules about which system owns each field, idempotent updates, and reconciliation checks that flag drift instead of letting it accumulate.
Yes, when built properly: scoped keys, encrypted transport, secrets managed outside the code, and access logged. We treat integration credentials like the master keys they are.
A single well-documented API connects in days to a couple of weeks. Multi-system syncs with edge cases take longer, and the mapping phase tells us which before you commit.
A fixed quote per connection or project. Weigh it against the daily hours of retyping it removes; integrations usually clear that bar quickly.
From the GAP3 journal.
Integration patterns we reuse, documented as we go.


