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API Integration & Payment Gateway Servicesby SoftwareCrafting

Third-party API integration, payment gateways, and authentication systems by SoftwareCrafting. Custom API development and integration services.

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NDA-Protected
48hr Kick-off
7 Engineers
Founder-led Delivery
SoftwareCrafting API Integration Services

Delivery Time

1-3 weeks depending on integration complexity

Senior deliveryFounder-involved build team
From₹15,000

Service Overview

We connect your product to the third party services it depends on, and we build those integrations to survive the ways external systems actually behave: rate limits, partial outages, slow responses, schema changes shipped without notice, and webhooks delivered twice or out of order. The integration code is the straightforward part. The engineering is in the boundary around it: retries with backoff and a circuit breaker so a struggling provider does not take your application down with it, idempotency so a retry does not duplicate an order or a charge, queues so a provider outage delays work instead of losing it, and reconciliation that detects when your view of the world has drifted from theirs. We work across payment gateways, CRMs, shipping and logistics providers, accounting systems, communication platforms, and internal enterprise systems. Every integration ships with monitoring on the boundary, because a silently failing integration is usually discovered by a customer rather than by an alert.

Technologies we use

REST APIsGraphQLStripePayPalRazorpayTwilioSendGridFirebaseGoogle APIsFacebook APITwitter APIJWTOAuthWebhooks

Key Features

  • Payment gateway integration (Stripe, PayPal, Razorpay)
  • Social media API integration
  • Email and SMS service integration
  • Google Maps and location services
  • Authentication and authorization systems
  • Webhook implementation
  • Custom API development
  • API documentation and testing
  • Error handling and logging
  • Rate limiting and security
  • Data synchronization
  • Real-time notifications
  • Third-party service monitoring
  • Retry with exponential backoff and circuit breaking on failing providers
  • Idempotency so retried calls do not duplicate orders or charges
  • Queue backed processing so an outage delays rather than loses work
  • Webhook verification, deduplication, and replay endpoints
  • Reconciliation jobs that detect drift between your data and the provider
  • Rate limit handling with request shaping and quota awareness
  • Sandbox and production environment separation with contract tests
  • Monitoring and alerting on integration health and error rates

Pricing Snapshot

₹15,000

Starting from ₹15,000 for complete API integration projects

  • Model: project
  • Timeline: 1-3 weeks depending on integration complexity
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Step-by-step

Our Delivery Process

We use an agile, transparent process to ensure your project is completed on time and meets exactly your needs.

01

API Analysis

Analyzing required integrations and API documentation

1-2 days
02

Integration Planning

Planning integration architecture and data flow

1-2 days
03

Development & Testing

Building and testing integrations

1-2 weeks
04

Security Implementation

Implementing security measures and authentication

2-3 days
05

Documentation & Deployment

Creating documentation and deploying integrations

1-2 days
06

Monitoring & Support

Setting up monitoring and providing ongoing support

Ongoing
Why Us

Why Choose SoftwareCrafting?

  • Expert API integration by SoftwareCrafting
  • Secure and reliable integrations
  • Multiple payment gateway support
  • Comprehensive error handling
  • Real-time data synchronization
  • Scalable integration architecture
  • Detailed documentation
  • Ongoing support and maintenance
  • Cost-effective solutions
  • Quick implementation
  • A failing provider degrades one feature instead of your whole application
  • Retries that never duplicate a customer order or charge
  • Work queued through an outage rather than lost
  • Drift between your records and the provider detected automatically
  • Integration failures surfaced by alerts rather than by customers
FAQ

Frequently Asked Questions

Which payment gateways does SoftwareCrafting integrate?

We integrate popular payment gateways including Stripe, PayPal, Razorpay, Square, and other major payment processors.

Can you integrate with social media platforms?

Yes, We can integrate with Facebook, Twitter, Instagram, LinkedIn, and other social media platforms for authentication and data sharing.

How do you ensure API integration security?

We implement comprehensive security measures including API key management, OAuth authentication, input validation, and secure data transmission.

Do you provide API documentation?

Yes, We provide detailed API documentation including endpoints, authentication methods, request/response examples, and integration guides.

What happens when a third party service goes down?

That is designed for rather than hoped against. Calls go through a circuit breaker so repeated failures stop hammering a struggling provider, work that can be deferred goes onto a queue and processes when the provider recovers, and the feature degrades in a defined way rather than taking the application down. We also alert on it so you know before customers tell you.

How do you handle webhooks reliably?

Verify the signature, store the raw event immediately, acknowledge fast, then process asynchronously. Handlers are idempotent and ordering independent because providers deliver at least once and not always in order. Storing raw events means anything can be replayed, which matters when a bug is found in a handler after the fact.

What if the provider changes their API?

Contract tests against their sandbox catch breaking changes before your users do, and pinning to an explicit API version where the provider supports it prevents surprise changes entirely. We also isolate provider specifics behind an internal interface so a change affects one adapter rather than spreading through your codebase.

How long does a typical integration take?

A well documented modern API with a sandbox typically takes one to two weeks including error handling, tests, and monitoring. Poorly documented, legacy, or enterprise systems without a sandbox take considerably longer, and the uncertainty is usually in their behaviour rather than in our code. We scope after reviewing their documentation.
Our Work

Case Studies

See how we've delivered results for our clients.

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Testimonials

Client Success & Reviews

See what our clients say about our API Integration & Payment Gateway Services delivery.

"Great experience working with the team on Driftload. They built our entire platform - driver app, customer booking app, website, admin panel, and backend server - all working together smoothly. Communication was clear throughout, they understood the complexity of coordinating multiple apps with a shared backend, and delivered everything on time. Highly recommended for anyone needing a full end-to-end platform built right."

D

Dhruv Singh

Client

"Great experience working with the team - they built a high-quality website and app with excellent attention to detail. Communication was clear throughout, technical knowledge was strong, and delivery was on time. Bug fixes and support were quick whenever needed, and all project requirements were met. Highly recommended for anyone looking for a reliable, professional team."

A

Avesh Mansuri

Client

"Working with this team to build the Skillora website was a great experience from start to finish. They took the time to understand my vision, communicated clearly throughout the project, and delivered a modern, responsive, and well-designed website that met my expectations. They were professional, responsive to feedback, and quick to implement changes whenever needed. Their attention to detail, commitment to quality, and timely delivery made the entire development process smooth and stress-free. I'm very happy with the final result and appreciate their dedication and support throughout the project. I would confidently recommend them to anyone looking for reliable and professional website development services."

A

Aniket

Client

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