API Development & Integration

We build reliable APIs and integrate third-party services to create seamless data flows in your product.

200+
APIs Built
99.99%
Uptime
<100ms
Latency
50+
Integrations
Why invest in Custom APIs?

Disconnected systems destroy efficiency

When your software ecosystem can't communicate seamlessly, manual workarounds and data inconsistencies take over.

01

Data Inconsistencies

Manual data entry between disconnected tools leads to costly errors.

02

Slow Workflows

Without automation, employees waste hours on repetitive cross-platform tasks.

03

Vendor Lock-in

Relying on closed ecosystems prevents you from leveraging the best tools available.

04

Scaling Barriers

Rigid integrations break as soon as your business processes evolve.

What We Build

Three Pillars of Modern API

From classic REST to real-time WebSocket — we architect solutions tailored to your exact business needs.

REST

RESTful API

Standardized and documented endpoints with OpenAPI/Swagger, JWT authentication, and rate-limiting built-in.

  • OpenAPI 3.0 Spec
  • JWT / OAuth 2.0
  • Rate Limiting
  • Versioning
GraphQL

GraphQL API

Flexible queries that give clients exactly the data they need. Perfect for mobile apps and SPAs.

  • Apollo Server
  • Type-safe Schema
  • Subscriptions
  • DataLoader
Real-Time

WebSocket / SSE

Bi-directional connection for chats, live dashboards, and notifications in real-time.

  • Socket.io
  • Server-Sent Events
  • Event-Driven
  • Pub/Sub
api/v1/products.ts
// GET /api/v1/products
@Controller('products')
export class ProductsController {
  @Get()
  @UseGuards(JwtAuthGuard)
  async findAll(
    @Query() dto: PaginationDto,
  ): Promise<ProductList> {
    // Cached, paginated & typed
    return this.service.findAll(dto);
  }
}

From isolated services to a unified ecosystem

Scale your business through robust connectivity. Link your products, automate data flows, and build the foundation for unlimited digital growth.

Real-time data sync
Secure partner access
System fault tolerance
Rapid feature deployment
Ecosystem

50+ Ready Integrations

Stripe, OpenAI, AWS, Twilio, Slack, and dozens of other services — connected fast and securely.

Payments
StripePayPalLiqPayWayforpayApple PayGoogle PayAdyen
AI / LLM
OpenAI GPT-4oClaude 3.5Gemini ProMistral AIPineconeLangChain
Cloud
AWS S3Google CloudAzureCloudflareSupabaseVercel Edge
Communications
Twilio SMSSendGridSlackDiscordTelegram BotWhatsApp
Analytics
MixpanelSegmentAmplitudePosthogHotjarGoogle Analytics
Auth
Auth0ClerkFirebase AuthSupabase AuthNextAuthMagic Link
AI-First Engineering

Intelligence Built-In,
Not Bolted On.

We are a natively AI-driven agency. Every project runs on the world's most advanced models — delivering faster, at lower cost, and with enterprise-grade security built in from day one.

Powered by the world's top AI

Claude 3.5 Sonnet
GPT-4o Omnimodel
Gemini 1.5 Pro
Vercel AI SDK
LangChain
Faster Delivery

AI compresses dev cycles from weeks to days

~40%
Lower Costs

Smart automation eliminates repetitive manual work

99.9%
Secure by Design

Automated audits, threat detection, compliance-ready

Future-Proof

Architecture built to scale with the next wave of AI

Path to Success

Our API Development Process

A clear and transparent workflow from requirements discovery to a production release with full documentation.

Tech Stack

The Stack We Use to Build Enterprise-Grade APIs

Battle-tested technologies for building reliable, scalable, and well-documented APIs.

Core

The foundation for reliable and high-performance server-side applications.

Node.js
Node.js
Runtime
NestJS
NestJS
Framework
TypeScript
TypeScript
Type Safety
Express
Express
Lightweight
FAQ

Frequent Questions

Answers to questions that arise before any API project.

Ready to build a reliable API?

Get a free consultation and project estimate from our API architects.

REST / GraphQL
High Performance
Secure Endpoints
API Development & Integration | Expletech