API Design & Systems Integration
Service Overview
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 Creative Process
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01
Integration Mapping
Map all systems involved, data flows, and failure scenarios before touching a line of code.
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02
API Design / Audit
Design new APIs or audit existing ones for consistency, security, and performance.
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03
Build & Test
Develop integrations with error handling, retry logic, logging, and edge case coverage built in.
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04
Monitor & Maintain
Integration health monitoring, alerting, and maintenance to catch issues before they reach users.
Key Features
REST & GraphQL API Development
Payment Gateway Integration
WhatsApp Business API (Meta WABA)
CRM Integration (Zoho, Salesforce)
ERP Integration (Zoho Books, Tally)
SMS Gateway (MSG91)
Email Automation (AWS SES)
Webhook Architecture
Broker API Integration
Why Engineering Teams & Founders Choose Fulgid
India-Stack Expertise
Deep experience with Razorpay, Zoho, MSG91, Meta WABA, and other India-first platforms.
Fault-Tolerant Design
We build retry logic, dead-letter queues, and monitoring — integrations that survive real-world failures.
Full Documentation
Every integration is documented — endpoints, payloads, error codes — so your team can maintain it.
Proven Track Record
We've integrated Zoho Books + Shopify, broker APIs + trading platforms, and govt notification systems.
The Tools We Master — So You Don't Have To
Have Questions? We've Got Answers

