API Development & Integration

API Development and Third-Party Integration Services

Custom REST and GraphQL API development plus integrations with CRMs, ERPs, payment gateways, shipping carriers and marketing platforms.

Diagram of a website connected through APIs to a database, cloud services and third-party platforms

APIs That Connect Your Website to the Systems Behind It

Most business friction happens between systems: orders retyped into an accounting package, leads copied into a CRM, stock levels that disagree with the warehouse. API development removes that manual work by letting your website, app and back-office tools exchange data automatically and reliably.

We design APIs contract-first — clear resources, predictable responses, versioning and meaningful status codes — and document them so any developer can integrate without guesswork. Authentication uses tokens or OAuth 2.0, sensitive traffic is rate limited, and every request is logged with enough context to trace a problem.

For integrations with platforms you do not control, we handle the awkward parts: pagination limits, rate caps, retries with backoff, idempotent writes, webhook verification and alerting when a partner service goes down, so a third-party outage never silently loses your data.

What’s Included

What Our API Services Cover

  • Custom REST & GraphQL APIs

    Well-structured endpoints for your website, mobile apps or partners, with authentication, pagination and rate limiting.

  • CRM & ERP Integration

    Two-way sync of leads, customers, orders and stock with Salesforce, HubSpot, Zoho, Dynamics, SAP and similar systems.

  • Payment Gateway Integration

    Stripe, PayPal, Razorpay, Authorize.Net and regional gateways, including subscriptions, refunds and secure webhooks.

  • Shipping & Logistics APIs

    Live rates, label generation and tracking from carriers such as UPS, FedEx, DHL, Royal Mail and Australia Post.

  • Webhooks & Event Pipelines

    Signed, replay-safe webhooks with queues and retries so events are processed exactly once, even under load.

  • API Documentation & Monitoring

    OpenAPI specs, example requests, sandbox keys, uptime checks and alerts when an endpoint slows down or fails.

Benefits

What Good API Work Gives You

  • Data entered once and reflected everywhere, removing hours of duplicate admin each week.
  • Fewer errors: automated transfers do not mistype an order value or an address.
  • Real-time visibility of stock, orders and customers across the tools your team uses.
  • A stable contract, so your app, storefront and partners can evolve independently.
  • Clear logs and alerts, so integration problems are found before customers report them.

Technologies Used for API Development & Integration

  • REST
  • GraphQL
  • gRPC
  • WebSockets
  • Server-Sent Events
  • SOAP (legacy systems)
  • OpenAPI / Swagger
  • OAuth 2.0 & JWT
  • Webhooks
  • Node.js & Laravel
  • Redis queues
  • Postman

We recommend the right tools for your goals, budget and team — never a one-size-fits-all stack.

Discuss Your Project

How We Work

Our API Development & Integration Process

  1. Discovery & Consultation

    We learn about your business, audience and goals, review any existing website and agree on clear success criteria.

  2. Strategy & Planning

    We define the sitemap, features, technology stack and timeline, so scope and budget are clear before work begins.

  3. UI/UX Design

    We design wireframes and polished, responsive layouts for your approval, focused on usability and conversions.

  4. Development

    We build with clean, standards-based code, integrate your tools and set up an easy-to-use content editor.

  5. Testing & QA

    We test functionality, speed, security, accessibility and SEO across browsers and devices before launch.

  6. Launch & Support

    We deploy, monitor and fine-tune your site, then provide ongoing maintenance and support as you grow.

FAQ

API Development & Integration FAQs

Can you integrate my website with software that has no public API?

Often yes. Options include a database-level connector, scheduled file exchange (CSV/SFTP), an email-parsing bridge or automation tools such as Zapier. We review what the vendor allows and recommend the most reliable route.

How do you keep integrations secure?

Credentials live in server-side environment configuration, never in front-end code. Traffic is HTTPS only, webhooks are signature-verified, permissions are least-privilege and access tokens are rotated on a schedule.

What happens if a third-party service is down?

Requests are queued and retried with exponential backoff, failures are logged and alerted, and the user-facing experience degrades gracefully instead of breaking. Nothing is lost when the partner comes back online.

Will I get documentation for the API you build?

Yes. You receive an OpenAPI specification, example requests and responses, authentication instructions and a Postman collection your developers or partners can use immediately.

Explore More

Technologies and services that work well alongside api development & integration.

  • Custom Web Development

    Bespoke websites and web applications engineered around your workflows — fast, secure, and built to scale with your business.

  • Front-End Development

    Pixel-accurate, accessible front ends built from your designs with HTML5, CSS3, JavaScript, Tailwind or Bootstrap — responsive on every device.

  • Website Design

    Modern, responsive UI/UX design that communicates your value in seconds and guides visitors toward taking action.

  • WordPress Development

    Custom WordPress themes, plugins and WooCommerce builds that are fast, secure and genuinely easy for your team to manage.

API Development & Integration Enquiry

Tell Us About Your API or Integration

Tell us which systems need to talk to each other and how often data must sync, and we will map out the integration.

  • Reply within 24 hoursA real person reviews every request.
  • Free consultationHonest advice, no obligation.
  • 100% confidentialHappy to sign an NDA.

What happens next?

  1. We review your requirements
  2. We reply with questions or a call slot
  3. You receive a clear, itemised proposal
1 Your project
2 API Development & Integration requirements

Your integration

Systems to connect (select all that apply)
How often must data sync?
Is API documentation available for the other system?

Project scope

Who will use it? (select all that apply)

Technology

Preferred technology (select all that apply)
Requirements / documentation

Integrations & hosting

Integrations needed (select all that apply)
Design / UI
Hosting / deployment
3 Budget & timeline
4 Your details

Tick the box and answer one quick question.