An API (Application Programming Interface) is the mechanism that allows different software systems to communicate with each other — exchanging data, triggering actions, and synchronising information without manual intervention. For IT companies and B2B businesses in Gurugram, API development and integration is the technical foundation that enables a website to talk to a CRM, a mobile app to access a backend database, a payment gateway to confirm a transaction, or a marketing automation platform to receive lead data from a contact form. Garuda Technologies builds custom REST and GraphQL APIs, integrates third-party services (Razorpay, Shiprocket, HubSpot, Salesforce, WhatsApp Business), and connects disparate business systems for IT companies, SaaS products, ecommerce platforms, and enterprise organisations in Gurugram.
Most Gurugram businesses encounter API requirements at one of four points in their digital growth trajectory:
Trigger Scenario | What API Development or Integration Solves |
Building a product that serves data to multiple surfaces | A SaaS company building a web application also wants a mobile app and a third-party integration marketplace. All three surfaces need the same business data and logic. A well-designed API serves all three from a single backend — the web app, the mobile app, and the integration partners all consume the same API endpoints, eliminating duplicate backend code and ensuring data consistency across surfaces. |
Connecting existing business systems that do not talk to each other | A company using Zoho CRM for sales management, Tally for accounting, and a custom website for lead generation has three systems that each contain partial pictures of the customer record. API integration connects them: a website form submission automatically creates a CRM contact, a deal closed in CRM triggers a Tally invoice, and payment received in Tally updates the CRM deal stage. Manual data entry between systems is eliminated. |
Integrating a payment gateway into a website or application | Razorpay, PayU, Cashfree, and Stripe each require specific API integration for payment processing, webhook receipt for order status updates, refund handling, and reconciliation. A payment gateway integration is not a plugin installation — it requires server-side API key management, webhook signature verification, and error handling for network failures and payment declines. |
Building internal automation that reduces manual operations | A logistics company manually transferring order data from an ecommerce platform to a shipping aggregator three times a day. An HR team manually copying candidate data from a job portal to an ATS. A finance team exporting reports from one system and importing to another. API automation replaces each of these manual workflows with a real-time or scheduled integration that transfers data accurately without human intervention. |
Architecture | How It Works and When to Use It |
REST API (Representational State Transfer) | The most widely used API architecture. Resources are accessed via standard HTTP methods (GET, POST, PUT, DELETE) at defined endpoint URLs. REST is straightforward to understand, well-supported by every programming language and framework, and appropriate for most business applications. Best for: standard CRUD operations on defined data models, mobile app backends, third-party integration endpoints, and any API where the data structure is predictable and stable. |
GraphQL | A query language for APIs where the client specifies exactly what data it needs in a single request — eliminating over-fetching (receiving more data than needed) and under-fetching (making multiple requests to get all required data). Best for: applications with complex, nested data requirements where different views need different subsets of the same data, or where API consumers (web app, mobile app, third-party) have significantly different data requirements from the same endpoint. Used by Facebook, GitHub, and Shopify. |
Integration Category | Systems and Scope | Best For |
Payment Gateways | Razorpay, PayU, Cashfree, Stripe, PayPal. Full integration: payment initiation, webhook receipt for order confirmation, refund API, reconciliation endpoints, and GST invoice generation. | Ecommerce, subscription billing, booking platforms |
CRM Platforms | HubSpot, Salesforce, Zoho CRM. Lead creation from website forms, deal stage synchronisation, contact enrichment, activity logging, and two-way data sync between CRM and custom applications. | Lead management, sales automation, customer portals |
ERP and Accounting | Tally Prime API, SAP Business One, QuickBooks, Zoho Books. Invoice creation, payment status updates, inventory synchronisation, and financial data transfer between operational and accounting systems. | Manufacturing, retail, professional services |
Shipping and Logistics | Shiprocket, Delhivery, Dunzo, FedEx, Blue Dart. Order creation, shipment tracking webhook, delivery status updates, and returns management integrated into ecommerce and order management platforms. | Ecommerce, D2C brands, logistics businesses |
Communication Platforms | WhatsApp Business API (via Meta), Twilio for SMS, SendGrid and AWS SES for transactional email. Automated notifications, OTP delivery, order updates, and support ticket management. | Customer communication, order notifications, OTP |
Marketing Automation | HubSpot, Mailchimp, ActiveCampaign. Lead data from website forms, event tracking, segmentation triggers, and CRM deal data synchronisation with marketing campaign management. | B2B marketing, email campaigns, lead nurturing |
Google Workspace / M365 | Google Calendar, Gmail, Drive, Sheets API. Microsoft Graph API for Teams, Outlook, OneDrive. Document generation, calendar synchronisation, and productivity tool integration for internal business processes. | Enterprise productivity, document workflows |
Travel and Booking APIs | Amadeus, Sabre, TBO Holidays for flight and hotel data. Integration for Garuda Technologies' own travel service brands — Globalairhub, Zippoair, Tripsomaker and others — and for travel businesses requiring live inventory access. | Travel companies, booking platforms, OTAs |
Practice | What It Means and Why It Matters |
OpenAPI documentation | Every API built by Garuda Technologies ships with an OpenAPI 3.0 specification — a machine-readable document describing every endpoint, its parameters, request body structure, response schema, and authentication requirements. OpenAPI documentation enables frontend developers and integration partners to consume the API without requiring a developer from the backend team to explain each endpoint manually. |
Authentication and security | REST APIs are secured with Laravel Sanctum (for first-party SPA and mobile app authentication), JWT tokens (for stateless API authentication), or API key authentication (for server-to-server integrations). All API endpoints enforce HTTPS. Rate limiting is configured to prevent abuse. Input validation is applied to every request parameter and body field. |
Versioned endpoint structure | API endpoints use version prefixes (/api/v1/, /api/v2/) to allow breaking changes to be introduced in a new version without disrupting existing integrations on the previous version. Version management is the practice that prevents a backend update from silently breaking a mobile app or third-party integration that depends on the previous response structure. |
Webhook implementation | For integrations requiring real-time event notification (payment confirmation, order status update, form submission), webhooks are implemented with signature verification — confirming that the webhook payload genuinely originated from the expected source before processing it. Webhooks without signature verification are a security vulnerability. |
Error handling and logging | Consistent error response structure across all endpoints (HTTP status codes, error code, human-readable message). Application-level error logging using Laravel Telescope or a dedicated logging service (Papertrail, Loggly) for debugging production issues without direct server access. |
Project Type | India Pricing Range and Timeline (2026) |
Single third-party integration | INR 30,000 to INR 80,000. One payment gateway, CRM, or shipping API integration with webhook handling and error management. 1 to 3 weeks. |
REST API for web or mobile app (basic) | INR 80,000 to INR 2,00,000. Authentication, CRUD endpoints for 5 to 10 resource types, OpenAPI documentation, rate limiting. 4 to 8 weeks. |
REST API with complex business logic | INR 2,00,000 to INR 5,00,000. Multi-role authentication, complex relational data, background job processing, webhook infrastructure, comprehensive test coverage. 8 to 16 weeks. |
Multi-system integration project | INR 1,50,000 to INR 5,00,000. Connecting 3 to 5 existing business systems (CRM + ERP + ecommerce + shipping + communication). Scope varies significantly by system complexity and data mapping requirements. 6 to 14 weeks. |
API development is the process of building a new API — designing the endpoints, writing the server-side code, implementing authentication, and documenting the interface. API integration is the process of connecting an existing third-party API (Razorpay, HubSpot, Shiprocket) to your application — implementing the client-side code that calls the external API, handles authentication, processes responses, and manages errors. Most real-world projects involve both: building a custom API for your application's core functionality and integrating third-party APIs for payment processing, communication, shipping, or CRM.
A standard Razorpay or PayU integration on an existing website or application takes 5 to 10 business days, covering: payment order creation API, checkout interface integration, webhook endpoint for payment confirmation and failure events, webhook signature verification, order status update on payment confirmation, refund API implementation, and testing across UPI, credit card, debit card, net banking, and EMI payment methods. Integration on a new application being built from scratch is scoped into the main development timeline rather than as a separate engagement.
Yes. CRM integration is typically a backend addition to an existing website — a server-side script or API endpoint that receives the form submission, maps the fields to the CRM's contact properties, and creates or updates the CRM record via the CRM's API. This does not require rebuilding the website frontend. For WordPress sites, CRM integration is implemented through a custom plugin or a lightweight PHP script that hooks into the contact form plugin's submission event. For custom websites, a new backend endpoint receives the form data and calls the CRM API. Implementation time is 3 to 7 business days for a standard CRM form integration.
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Garuda Technologies is a Gurgaon-headquartered technology and travel services company operating from Udyog Vihar, Sector 19 — the heart of Gurugram's IT and industrial corridor. Founded with the conviction that businesses deserve a single accountable partner for their digital and travel needs, Garuda Technologies operates two integrated verticals: a full-spectrum IT and digital services division, and a travel services division powered by seven specialized travel brands.