Nishkama TechX
API Development
Backend & APIs

API development that makes disconnected business systems work together

Custom REST and GraphQL APIs, third-party integrations, webhook systems, and data sync layers that replace manual work and connect your operational stack.

Production-ready
Backend & APIs
We build with it

How we use it

We design APIs around real business workflows - not just endpoints. Every API we build includes authentication, rate limiting, observability, versioning strategy, and OpenAPI documentation. We think about failure modes, retry logic, and idempotency from the first design session.

Best fit for

CRM & ERP integrations
Payment & commerce flows
Multi-system data sync
Why now

The average enterprise now uses 1,061 cloud applications (Okta Business at Work 2024 Report), yet fewer than 30% of these are integrated - creating massive operational inefficiency through manual data entry, duplicate records, and disconnected workflows. API management spending is projected to reach $13.7 billion by 2027 (MarketsandMarkets). Meanwhile, the rise of AI agents in 2025 - 85% of organisations have integrated agents into at least one workflow (index.dev, 2025) - creates a new category of API work: building clean, documented, machine-readable interfaces that AI agents and LLM tools can reliably call.

What's included

Capabilities

01

API architecture & endpoint design

02

Database schema & integration

03

Authentication, RBAC & security hardening

04

Third-party integrations & webhooks

05

Performance optimisation & caching strategy

Fit analysis

Is this right for you?

When to choose this

Right fit scenarios

5

Your business runs on disconnected tools - CRM, ERP, payment processor, email platform, support system - and data moves between them manually or unreliably

You are building a mobile app or third-party integration that needs a reliable, documented API to consume your platform's data and trigger actions

You want to expose your core product functionality as an API so partners, clients, or internal tools can build on top of it systematically

You need a webhook system that reliably receives events from Stripe, Shopify, Twilio, or other platforms and triggers specific business workflows in response

You are building AI agents or automation workflows that need to call reliable, well-documented APIs - and your current systems do not have the structure to support this

Common questions

You're probably wondering

How long does API development take?
A focused API integration connecting two or three systems takes 2–5 weeks. A custom REST API with full CRUD, authentication, rate limiting, and OpenAPI documentation takes 6–12 weeks. A multi-service integration platform with webhooks, queuing, error handling, and monitoring takes 10–20 weeks.
REST API vs GraphQL - which should I choose?
REST is better for simple, resource-oriented APIs, public APIs, and teams that prefer simplicity and broad tooling support. GraphQL is better for complex data graphs, mobile clients that need specific data shapes, and frontend teams that want to query exactly what they need without over-fetching or under-fetching. We recommend REST for most B2B integrations and GraphQL for product APIs serving multiple client types with varying data needs.
How do you document APIs?
We use OpenAPI (Swagger) specification for all REST APIs - this auto-generates interactive documentation that client teams can explore, test requests against, and use to generate SDK code. Fastify generates this automatically from route schemas. We also deliver Postman collections for rapid team testing and maintain documentation in the repository alongside the code.
How do you handle API security?
We implement JWT or API key authentication, per-client rate limiting, IP allowlisting for sensitive endpoints, HTTPS enforcement, input validation on every endpoint using Zod, RBAC checks on sensitive operations, and audit logging for all authenticated requests. We follow OWASP API Security Top 10 as a baseline checklist on every project.
What happens when a third-party API goes down?
We build integration layers with circuit breakers, retry logic with exponential backoff and jitter, and dead-letter queues for operations that fail after exhausting retries. We monitor third-party API health separately from application health and alert before issues cascade to end users. Webhook handlers include idempotency keys to prevent double-processing when events are delivered more than once.
Can you integrate with any third-party tool?
If it has an API or webhook system, yes. We have integrated with Stripe, Razorpay, Cashfree, HubSpot, Salesforce, Shopify, WooCommerce, Google Workspace, Slack, Twilio, WhatsApp Business API, AWS services, Zoho, Tally, and dozens of bespoke platforms. For tools without APIs, we have built file-based exchange layers and scheduled data polling as fallbacks.
How much does API development cost in India?
A simple third-party API integration starts at ₹1.5–3 lakh. A custom REST API built from scratch with authentication and documentation starts at ₹4–8 lakh. An enterprise integration platform with webhooks, queuing, monitoring, and multi-system sync ranges from ₹10–25 lakh.
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