API Development Services in Rajkot

neunrg designs, builds and scales secure REST and GraphQL APIs for businesses in Rajkot and across India. Clean architecture, honest documentation and the reliability your product depends on.

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What We Build

Backends That Don't
Break Under Pressure.

Whether you're launching an MVP or upgrading a system that can't keep up, we build APIs with security, speed and growth in mind from the first commit.

REST & GraphQL APIs

Clean, versioned, well-documented APIs designed around your actual business workflows.

Payment Integrations

Razorpay, Stripe and other gateways integrated securely with proper webhooks and failure handling.

Authentication & Security

JWT, OAuth, role-based access control and secure session handling that protects your data and builds user trust.

Third-Party Integrations

CRMs, ERPs, WhatsApp Business, shipping providers and more — connected into one consistent API layer.

API Documentation

Clear, interactive documentation so your team (or external developers) can integrate without guesswork.

Scaling & Optimization

Caching, database tuning and load optimization so response times stay fast as traffic grows.

Why neunrg

APIs Are the Foundation.
We Build Them Right.

A weak backend quietly costs you customers, revenue and engineering time. Here's how we prevent that.

Security by Default

Validation, rate limiting, proper error handling and hardened authentication on every endpoint.

Resilient by Design

Graceful failure handling, retry logic and monitoring so issues surface before users feel them.

Performance-Tuned

We measure response times and optimize queries, caching and payloads — not just claim speed.

Maintainable Code

Clear structure and documentation your next developer (or we) can extend without pain.

MVP to Enterprise

From a first API for your MVP to systems handling 10x traffic — we scale with your stage.

Direct Communication

You talk to the engineers building your system, in Rajkot time, without layers of account managers.

Node.js

Python

FastAPI

PostgreSQL

MongoDB

REST

GraphQL

JWT

OAuth

Docker

AWS

Our Work

API Projects With
Measurable Impact.

Payment reliability, faster responses, easier integrations — the results speak for themselves.

API Development

Payment Gateway API

Reduced payment failures by 25%

API Development

Multi-Service Aggregator API

Reduced integration effort by 70%

API Development

High-Performance REST API

Reduced response time by 60%

Explore the full portfolio for more API case studies.

FAQ

API Development Questions,
Answered.

REST or GraphQL — which do you recommend?

For most business systems REST is simpler and more predictable. GraphQL shines for products with complex, data-hungry frontends. We'll recommend the right fit for your use case.

Can you integrate payment gateways like Razorpay?

Yes — we've built payment integrations with proper webhook handling, refund flows and failure recovery. See our payment gateway case study.

How do you ensure API security?

Authentication (JWT/OAuth), input validation, rate limiting, HTTPS enforcement, least-privilege access and regular dependency reviews.

Can you improve my existing slow API?

Yes — we audit performance bottlenecks, optimize queries and caching, and can rebuild endpoints that are beyond repair. Our performance project cut response times by 60%.

Let's Build Together

A Backend That Works
as Hard as Your Business.

Describe the system you need — we'll come back with an architecture plan and a transparent quote.

Start Your Project Contact Us

Message us on WhatsApp — we reply within 24 hours.

Backends That Don'tBreak Under Pressure.

APIs Are the Foundation.We Build Them Right.

API Projects WithMeasurable Impact.

API Development Questions,Answered.

A Backend That Worksas Hard as Your Business.

Backends That Don't
Break Under Pressure.

APIs Are the Foundation.
We Build Them Right.

API Projects With
Measurable Impact.

API Development Questions,
Answered.

A Backend That Works
as Hard as Your Business.