Mobile API Integrations
Services
Connect your mobile app to the backends and services it depends on. Vertex Logics integrates REST and GraphQL APIs, real-time sync, authentication, payment gateways, and third-party SDKs — so your iOS and Android apps work reliably on real networks.
Mobile API Integration Services
Connect your iOS and Android apps to backends, payment systems, and third-party services. Our services cover REST and GraphQL clients, real-time sync, authentication, SDK integration, and production API monitoring.
REST API Integration
Wire your app to REST backends with robust client layers. We implement endpoint consumption, JSON parsing, error handling, and retry logic built for flaky mobile connections.
Learn MoreGraphQL Mobile Clients
Fetch exactly the data your screens need with GraphQL. We build mobile clients with queries, mutations, caching, and subscriptions optimized for bandwidth and battery life.
Learn MoreReal-Time Sync & WebSockets
Keep mobile data fresh without constant polling. We implement WebSocket connections, live updates, offline queues, and conflict resolution for seamless sync.
Learn MoreMobile Authentication
Secure user sessions on iOS and Android. We integrate OAuth, JWT tokens, biometric auth, and token refresh flows that keep users signed in safely.
Learn MorePayment Gateway Integration
Accept payments inside your mobile app. We integrate Stripe, Apple Pay, Google Pay, and in-app purchase flows with tested checkout and receipt validation.
Learn MoreThird-Party SDK Integration
Extend your app with analytics, maps, social login, and CRM tools. We integrate third-party SDKs with proper initialization, permissions, and lifecycle handling.
Learn MoreAPI Monitoring & Error Tracking
Catch integration failures before users do. We set up crash reporting, API log tracking, latency monitoring, and alerting for production mobile apps.
Learn MoreMobile API Integration Technologies
We use a production-grade stack for mobile API clients — REST, GraphQL, Firebase, Node.js, PostgreSQL, AWS, and monitoring tools built for reliable integrations at scale.
REST API
GraphQL
Node.js
Firebase
TypeScript
PostgreSQL
AWS
Docker
Python
React
Integration
JavaScript
Why Outsource to Us?
This is not just a dev shop you are hiring. You get to work with pros who care.
Proven Track Record
We keep promises and strike deadlines, delivering high-quality solutions that perform exceptionally.
Dedicated Team
Get access to a team that's fully committed to your success, from initial concept to final deployment.
Partnership Approach
We're not just vendors; we become an extension of your team, invested in your long-term success.
Let's build something that grows your business.
Mobile API Integration Process
Our process moves from API discovery and contract design through auth, client development, and SDK integration — ending with QA and ongoing monitoring.
API Requirements & Discovery
We map which backends, services, and third-party tools your app needs. Integration scope, data flows, auth requirements, and success criteria are defined before any client code is written.
API Contract & Client Design
We design mobile API client architecture — endpoint contracts, data models, caching strategy, and error handling patterns tailored for iOS and Android network conditions.
Authentication Layer Build
We implement secure auth flows — OAuth, JWT, biometric login, and token refresh — with secure storage and session management on both iOS and Android.
REST & GraphQL Client Development
We build API client layers with REST and GraphQL consumption, response parsing, caching, and retry logic. Every integration is coded for reliability on cellular networks.
Real-Time Sync & SDK Integration
We connect WebSocket streams, payment gateways, analytics, maps, and third-party SDKs. Offline queues and conflict resolution keep data consistent across sessions.
Integration Testing & QA
We test API integrations across network conditions, auth edge cases, and failure modes. Payment flows, sync accuracy, and SDK reliability are validated before production.
Deploy, Monitor & Optimize
We deploy integrations with API monitoring, crash reporting, and latency tracking. Post-launch, we tune caching, retry thresholds, and error handling based on real usage data.
Case Studies
See our real-time case studies, from startups to growing brands, and find out how we have developed quick, user-centric websites that achieve results and provide long-term impact.
Autosay AI
Integrated real-time call flow APIs and lead management backends into a mobile-first communication platform — delivering reliable sync across iOS and Android devices.
+45%
Call handling efficiency
99.9%
Platform uptime
Enquiry Medical
Connected mobile patient intake to backend billing and CRM APIs — improving data sync, accessibility, and conversion across every touchpoint.
+24%
Lead conversion
+38%
App performance
The Doux
Built mobile e-commerce with integrated payment, product catalog, and order APIs — seamless browsing and checkout tuned for iOS and Android shoppers.
+32%
Mobile engagement
+28%
App performance
Frequently Asked Questions
Find answers to common questions about our services and development process.
Yes. We connect mobile apps to existing REST APIs, GraphQL endpoints, authentication systems, and third-party services. If you need a new backend layer, we build that too — so your app has a complete, reliable data foundation.
Both, depending on your backend. REST is common for straightforward CRUD operations. GraphQL reduces over-fetching when screens need flexible data shapes. Many projects use REST for core APIs and GraphQL for complex data queries.
We implement offline queues that store failed requests locally and retry when connectivity returns. Conflict resolution rules ensure data stays consistent. Users see clear loading and error states instead of silent failures.
Yes. We integrate Stripe, Apple Pay, Google Pay, and native in-app purchase flows with receipt validation, error handling, and tested checkout paths on both iOS and Android.
A focused integration with REST auth and core endpoints can complete in 3 to 6 weeks. Multi-service integrations with payments, real-time sync, and several third-party SDKs may take 6 to 10 weeks. We provide a scoped timeline during discovery.
Empowering Business With Innovative and Robust Solutions
Clients Worldwide
Across various industries
Team Members
Experts in their fields
Satisfaction
Client satisfaction rate
Support
Round the clock assistance