Software Development Service
₹40,000 – ₹1,20,000

API Development & Integration

High-throughput RESTful & GraphQL APIs with military-grade authentication and automated documentation.

API Development & Integration Solution
Dedicated Specialist Fast Delivery
Service Overview & Engineering Approach

About API Development & Integration

Custom API engineering for mobile app backends, third-party software sync, and microservices. Features OAuth2/JWT authentication, rate limiting, and OpenAPI/Swagger documentation.

Modern software systems rely on interconnected data flows. Webcotec architects robust, low-latency REST and GraphQL APIs capable of handling tens of thousands of concurrent requests with sub-50ms server execution times.

We implement industry-standard token authentication (JWT / OAuth 2.0), cryptographic payload signing, Redis-backed rate limiting, and comprehensive input validation to prevent SQL injection and data leakage.

Every API comes accompanied by live OpenAPI (Swagger) documentation and Postman collections, making mobile app integration and partner onboarding seamless.

90+ Core Web Vitals
<1.5s Average Load
100% Code Ownership
30-Day Free Warranty
Engineering Standards

Key Architectural Capabilities

High-Throughput RESTful & GraphQL Endpoints

Lightweight, stateless API microservices optimized for sub-100ms response times and horizontal cloud auto-scaling.

Enterprise JWT & OAuth 2.0 Authentication

Multi-tier token validation, scoped API key rotation, rate-limiting headers, and defense against DDoS floods.

Resilient Webhook Handlers with Retry Queues

Guaranteed message delivery with idempotent webhook receivers, dead-letter queues, and automated failure retries.

Interactive Swagger & OpenAPI Documentation

Comprehensive, human-readable API reference documentation with interactive "Try it out" test consoles for external partners.

Real-Time Event Streaming & WebSockets

Low-latency push notifications, live chat sockets, inventory broadcasts, and real-time dashboard telemetry.

Audit Logging & Error Monitoring

Granular request/response telemetry tracking latency spikes, payload validation errors, and suspicious traffic patterns.

Scope of Work

What You Receive

1

High-performance REST & GraphQL API endpoints

2

Secure token authentication (JWT / OAuth2 / API Keys)

3

Swagger / OpenAPI interactive documentation

4

Automated webhook handlers with retry queues

5

Third-party connectors (Payment, Shipping, CRM, SMS, WhatsApp)

Execution Methodology

Our 5-Step Development Lifecycle

01

API Specification & Contract Design

Week 1

Drafting Swagger/OpenAPI specifications, JSON data schemas, error response codes, and authentication flows.

02

Architecture & Sandbox Prototyping

Week 2

Establishing the microservice framework, database connection pools, and mock endpoint responses for client testing.

03

Endpoint Coding & Webhook Queues

Weeks 3–4

Engineering business logic controllers, database indexing, rate limiters, and asynchronous job queues.

04

Security Audit & Concurrency Testing

Week 5

Fuzzing API payloads, load-testing endpoints with Apache JMeter under 5,000+ requests/sec, and token leakage checks.

05

Production Deployment & SLA Monitoring

Week 6

Deploying to cloud containers (Docker/AWS), configuring automated SSL certificates, and enabling latency alerts.

Targeted Solutions

Who This Service Is Engineered For

Mobile & Web

Mobile App Backends

Power iOS and Android native apps with secure authentication, profile synchronization, and push notifications.

Engineered for Scale
Fintech

Payment & Fintech Gateways

Connect custom payment verification hooks, UPI QR generation, automated reconciliation, and instant settlement.

Engineered for Scale
Ecosystems

Third-Party Vendor Integrations

Sync inventory, customer orders, and tracking updates with Amazon, Flipkart, Shiprocket, and WhatsApp Business API.

Engineered for Scale

Core Technologies & Platforms

RESTful APIs GraphQL Swagger Postman OAuth 2.0
Got Questions?

Frequently Asked Questions

What is the difference between REST and GraphQL APIs?
REST uses predictable HTTP endpoints (GET, POST, PATCH) with standard JSON structures, making it simple, highly cacheable, and universal. GraphQL allows frontends to request strictly the specific fields they need in a single request, minimizing payload size on mobile networks. We architect both depending on your technical requirements.
How do you handle API security and prevent DDoS abuse?
We implement IP-based and token-based rate limiting (e.g. 100 requests per minute per IP), OAuth2/JWT token validation, encrypted payload validation, and Cloudflare WAF protection against volumetric DDoS floods.
What happens if a third-party webhook fails to deliver?
We engineer automated retry queues with exponential backoff (retrying after 1 min, 5 min, 15 min, 1 hour). If a vendor server is temporarily down, the payload is safely preserved in a dead-letter queue until it is successfully acknowledged.
Do you provide documentation for our external partners or mobile developers?
Yes. Every API project includes fully interactive Swagger / OpenAPI 3.0 documentation, complete with endpoint descriptions, required payload schemas, authentication instructions, and live testing consoles.
Direct Consultation

Speak With a Tech Lead

Get technical guidance on architecture, project feasibility, and timeline estimates.

30-Day Post-Launch SLA Warranty
START YOUR PROJECT

Request a Custom Proposal for
API Development & Integration

Tell us about your business goals, target timelines, and functional requirements. Our engineering team in Lucknow reviews every inquiry and delivers a detailed architecture plan and fixed-price quote within 2 business hours.

Guaranteed 2-Hour Response Time During Business Hours
100% Free Technical Feasibility & Architecture Audit
Mutual NDA Protected & Complete IP Ownership
Transparent Fixed-Milestone Pricing With Zero Hidden Fees
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