Cruzata
Technology

API Development and Integration Services

Well-designed APIs are what let products, partners and teams build on your platform. We design, build and connect them properly.

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API services

API design

OpenAPI-first contracts, versioning and consistent conventions.

API development

Secure, documented REST and GraphQL back ends.

Third-party integration

Payments, CRM, shipping, maps, messaging and more.

API gateway & management

Rate limits, keys, analytics and lifecycle.

APIs built for developers and for longevity

An API becomes a contract that others depend on. We design resources and errors consistently, document them thoroughly and version them so you can evolve without breaking clients.

On the integration side, we handle authentication flows, rate limits, retries, webhooks and data mapping so third-party services behave reliably inside your product.

  • OpenAPI / Swagger documentation
  • OAuth 2.0, JWT and API key security
  • Rate limiting and throttling
  • Contract and load testing

Typical integrations

Payments
Stripe, Razorpay, PayPal
Messaging
WhatsApp, Twilio, email
Logistics
Shiprocket, DHL, FedEx
Business
CRM, ERP, accounting

REST versus GraphQL versus gRPC

StrengthTypical use
REST Simple, cacheable, universalPublic APIs and most web apps
GraphQL Clients request exactly the data they needComplex UIs and mobile apps
gRPC Fast, strongly typed binary protocolInternal microservice communication

API project workflow

  1. 1

    Requirements

    Consumers, use cases and data.

  2. 2

    Contract design

    OpenAPI spec reviewed before coding.

  3. 3

    Implementation

    Build with auth, validation and tests.

  4. 4

    Documentation

    Interactive docs and sandbox.

  5. 5

    Operate

    Monitoring, analytics and versioning.

API technology stack

Back end

  • Node.js / Express / NestJS
  • Python / FastAPI
  • Laravel
  • Java / Spring Boot
  • .NET
  • Go

Standards

  • OpenAPI / Swagger
  • OAuth 2.0 / OIDC
  • JWT
  • GraphQL
  • gRPC
  • Webhooks

Tooling

  • Postman
  • Kong
  • AWS API Gateway
  • Apigee
  • Redis
  • Prometheus
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FAQ

API Integration: frequently asked questions

API integration connects two or more software systems through their application programming interfaces so they can exchange data and trigger actions automatically.

If the service exposes an API or webhooks, yes. We have integrated payment gateways, CRMs, ERPs, shipping providers, messaging platforms and more.

We use strong authentication and authorisation, input validation, rate limiting, TLS, secrets management and testing against OWASP API Security risks.

Yes. We deliver OpenAPI specifications and interactive documentation with examples.

Yes. We design developer-friendly public APIs with keys, quotas, versioning and a sandbox.

Start your api integration project

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