API & SYSTEMSINTEGRATION

Fulgid integrates payment gateways, CRMs, ERPs, WhatsApp Business API & broker APIs. Expert API design & third-party integration services. India-based team. Talk to us today.

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Overview

API Design & Systems Integration

Modern businesses run on multiple platforms — CRMs, ERPs, payment gateways, communication tools, logistics APIs, and more. We design and implement integration layers that connect your systems reliably, handle failures gracefully, and give you a single source of truth across your stack. From simple webhook setups to complex multi-system orchestration, we've integrated it all — including India-specific platforms like Razorpay, Zoho, MSG91, and Meta WABA.

OUR CREATIVEPROCESS

A structured approach that keeps creativity flowing and projects on track.

01
Integration Mapping
Map all systems involved, data flows, and failure scenarios before touching a line of code.
02
API Design / Audit
Design new APIs or audit existing ones for consistency, security, and performance.
03
Build & Test
Develop integrations with error handling, retry logic, logging, and edge case coverage built in.
04
Monitor & Maintain
Integration health monitoring, alerting, and maintenance to catch issues before they reach users.

Capabilities

Key Features

REST & GraphQL API DevelopmentPayment Gateway IntegrationWhatsApp Business API (Meta WABA)CRM Integration (Zoho, Salesforce)ERP Integration (Zoho Books, Tally)REST & GraphQL API DevelopmentPayment Gateway IntegrationWhatsApp Business API (Meta WABA)CRM Integration (Zoho, Salesforce)ERP Integration (Zoho Books, Tally)REST & GraphQL API DevelopmentPayment Gateway IntegrationWhatsApp Business API (Meta WABA)CRM Integration (Zoho, Salesforce)ERP Integration (Zoho Books, Tally)REST & GraphQL API DevelopmentPayment Gateway IntegrationWhatsApp Business API (Meta WABA)CRM Integration (Zoho, Salesforce)ERP Integration (Zoho Books, Tally)

SMS Gateway (MSG91)Email Automation (AWS SES)Webhook ArchitectureBroker API IntegrationSMS Gateway (MSG91)Email Automation (AWS SES)Webhook ArchitectureBroker API IntegrationSMS Gateway (MSG91)Email Automation (AWS SES)Webhook ArchitectureBroker API IntegrationSMS Gateway (MSG91)Email Automation (AWS SES)Webhook ArchitectureBroker API Integration

Why Fulgid

Why Engineering Teams & Founders Choose Fulgid

India-Stack Expertise
01
Deep experience with Razorpay, Zoho, MSG91, Meta WABA, and other India-first platforms.
Fault-Tolerant Design
02
We build retry logic, dead-letter queues, and monitoring — integrations that survive real-world failures.
Full Documentation
03
Every integration is documented — endpoints, payloads, error codes — so your team can maintain it.
Proven Track Record
04
We've integrated Zoho Books + Shopify, broker APIs + trading platforms, and govt notification systems.

Stack

The integration stackwe ship with.

Chosen per project, not per habit — these are the tools in production on our integration work today.

Core

8 tools

Integrations & ops

8 tools

Shippedwith this.

All case studies

E-Commerce Store + Zoho Books Integration

e-Commerce & Retail

SMD Trading Platform

Fintech & Trading

Organ Transplant Management System

Healthcare & Government

Read beforeyou build.

E-Commerce & Web

How to Set Up a GST-Compliant WooCommerce Store in India — A Developer's Practical Guide

Chatbots & Automation

How Indian Startups Are Using WhatsApp Automation to Scale Without Growing Headcount

Fintech & Trading

Building a Trading Platform for the Indian Market — What It Actually Takes

Commonquestions.

Can you integrate Zoho with our website?

Yes — Zoho CRM, Zoho Books, Zoho Flow. We've handled complex GST line-item mapping and multi-channel order sync.

Do you set up WhatsApp Business API?

Yes — Meta WABA setup, template creation, webhook handling, and integration with your backend or CRM.

What if the third-party API changes?

We build abstraction layers so updates to third-party APIs require minimal changes on your side. Monitoring alerts us when APIs behave unexpectedly.

Commonquestions.

Can you integrate Zoho with our website?

Yes — Zoho CRM, Zoho Books, Zoho Flow. We've handled complex GST line-item mapping and multi-channel order sync.

Do you set up WhatsApp Business API?

Yes — Meta WABA setup, template creation, webhook handling, and integration with your backend or CRM.

What if the third-party API changes?

We build abstraction layers so updates to third-party APIs require minimal changes on your side. Monitoring alerts us when APIs behave unexpectedly.

API & SYSTEMSINTEGRATION

API Design & Systems Integration

OUR CREATIVEPROCESS

Integration Mapping

API Design / Audit

Build & Test

Monitor & Maintain

Key Features

Why Engineering Teams & Founders Choose Fulgid

India-Stack Expertise

Fault-Tolerant Design

Full Documentation

Proven Track Record

The integration stackwe ship with.