APIs That Make Your Systems Talk to Each Other
We design and build REST, GraphQL, and webhook APIs that connect your products, platforms, and third-party tools into a single coherent system. The result is less manual work, fewer errors, and software that scales with your business.
Reliable data flow
Structured error handling and retry logic mean your integrations keep running even when a third-party service has a hiccup.
Faster product iteration
A clean API contract lets front-end, mobile, and partner teams build independently without waiting on back-end changes.
Clear documentation included
Every API we ship comes with OpenAPI or GraphQL schema docs so your team can onboard new developers without tribal knowledge.
API Development & Integration
The outcome we're after
Most growing businesses run on a patchwork of tools — a CRM that does not talk to the billing system, a logistics platform disconnected from the storefront, data exports done manually every morning. Each gap costs time and introduces risk that compounds as the team scales.
Splicity builds purpose-built APIs using REST and GraphQL depending on your data access patterns, then wires them together with event-driven webhooks for real-time triggers. We design authentication flows, rate limiting, and error handling from day one so the integration holds up under production load, not just in a demo.
Clients leave with a documented, versioned API layer their own developers can extend — not a black box that only we understand. Onboarding new tools becomes a configuration task rather than a development project, and internal teams spend their time on product work instead of data plumbing.
What we deliver
Key offerings
Why Splicity
Why teams choose us for this
A senior team, a fixed plan and long-term ownership — the things that decide whether a project actually succeeds.
One accountable team
Strategy, design, build and support handled end to end by senior people — not handed off and lost.
Fixed, transparent scope
A clear plan and estimate before any work begins. No open-ended billing, no surprises.
Built to scale & rank
Performance, security and SEO engineered in from day one — not bolted on at the end.
A long-term partner
We support, monitor and evolve what we build, so it keeps delivering value long after launch.
Our process
How we work
Discovery
We learn how you work, your goals and constraints.
Design & Build
We design the experience and engineer it to spec.
Test & QA
Automated and manual testing before anything ships.
Deploy
Smooth, low-risk releases on your infrastructure.
Maintain & Grow
Proactive support, optimisation and iteration.
FAQ
Frequently asked questions
When should I choose GraphQL over REST?
REST works well for straightforward CRUD operations and public APIs with predictable data shapes. GraphQL makes more sense when clients need flexible queries — for example, a mobile app fetching only certain fields to save bandwidth, or a dashboard pulling from multiple entities in a single request. We help you choose based on your actual usage patterns, not preference.
Can you integrate with APIs we do not control, like Stripe or Shopify?
Yes — third-party integration is one of the most common requests we handle. We map the external API's data model to your internal one, manage authentication tokens securely, handle webhook signature verification, and build the retry and error alerting logic so failed events do not disappear silently.
How do you handle breaking changes when an API needs to evolve?
We version APIs from the start, typically via URL path versioning for REST or schema directives for GraphQL. When a breaking change is unavoidable, we maintain the previous version long enough for all consumers to migrate and provide a clear changelog. Deprecation is planned, not sprung on your team.
What does an API project typically look like in terms of timeline and process?
We start with a short discovery session to map your data flows and agree on contracts before writing a line of code. A straightforward integration between two systems usually takes two to four weeks from kickoff to production. More complex projects with multiple services, custom auth flows, or high-volume event pipelines are scoped explicitly after discovery.
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Explore→Ready to start your api development & integration project?
Tell us what you're building. We'll scope it and come back with a clear plan, timeline and estimate.