Third-Party API Integration Services That Just Work

We integrate your systems with payment gateways, CRMs, shipping providers, and any third-party API, handling authentication, error cases, and edge conditions properly.

Integration Done Right, Not Just Connected

Anyone can call an API — the hard part is handling rate limits, retries, authentication token refresh, and the edge cases that show up weeks after launch. We build integrations that are resilient in production, not just working in a demo.

Why Choose NIMU for API Integration

Any API, Any Format

REST, SOAP, GraphQL, or webhook-based APIs — we integrate with all of them.

Retry & Error Handling

Proper handling of rate limits, timeouts, and transient failures, not just the happy path.

Secure Credential Management

API keys and tokens stored and rotated securely, never hardcoded.

Data Mapping & Transformation

Clean mapping between your data model and the third-party API's format.

Sandbox Testing First

Every integration tested against sandbox/staging environments before going live.

Ongoing Maintenance

Monitoring for upstream API changes that could break your integration.

What We Deliver

A comprehensive suite of capabilities packaged into every engagement.

1

Payment Gateway Integration

Stripe, Razorpay, PayPal, and other payment providers integrated securely.

2

CRM & Marketing Tool Integration

Connecting your systems with Salesforce, HubSpot, Zoho, and similar platforms.

3

Shipping & Logistics API Integration

Real-time shipping rates, tracking, and label generation from carrier APIs.

4

Custom Webhook & Event Integration

Building reliable webhook consumers for real-time third-party events.

Our Delivery Process

A proven, transparent process that keeps your project on time and on budget.

1

API Discovery

Reviewing the third-party API's documentation, limits, and authentication requirements.

2

Integration Design

Mapping data models and planning error handling and retry strategies.

3

Development & Sandbox Testing

Building the integration and validating it against the provider's sandbox environment.

4

Production Rollout & Monitoring

Going live with monitoring in place to catch upstream API changes early.

Frequently Asked Questions

Everything you need to know before getting started.

Yes, we can work with sparse documentation and reverse-engineer behaviour through sandbox testing where necessary.
We build monitoring and alerting around key integrations so we are notified quickly if upstream changes start causing failures.
Yes, we regularly integrate Stripe, Razorpay, PayPal, and other payment gateways with proper security and compliance handling.
Yes, we commonly build workflows that chain multiple APIs together, for example, payment, shipping, and CRM systems in a single order process.
Ready to Start?

Let's Build Your Third Party API Integration Solution

Get a free consultation with our experts and a tailored proposal within 48 hours.

Start Your Project All Services