API Development & Third-Party Integration Services
Your software is only as useful as the systems it connects to. We build secure APIs and integrate payment gateways, WhatsApp, accounting, ERPs and any third-party service.
API Development & Integration by Corposol
Modern businesses use many tools — and the real productivity gain comes when they work together. APIs let your website, mobile app, CRM, accounting and logistics systems share data instantly instead of through manual exports.
We design and build REST APIs for your own applications and mobile apps, and integrate your systems with the third-party platforms you rely on — with proper authentication, error handling, retries and logs so integrations don't silently break.
Why businesses choose us
Secure by design
Token authentication, rate limiting, encryption and least-privilege access.
Reliable sync
Queues, retries and alerts so a failed call never means lost data.
Well documented
OpenAPI/Swagger docs and Postman collections for your team and partners.
Monitored
Logs and dashboards show every request and error for quick troubleshooting.
Integration services
Custom REST / GraphQL APIs
Secure, versioned APIs for your mobile apps, partners and internal systems.
Payment Gateway Integration
Razorpay, PayU, Stripe, PhonePe, UPI and auto-reconciliation with your books.
WhatsApp, SMS & Email APIs
WhatsApp Business API, SMS gateways and transactional email for alerts and OTPs.
Accounting & ERP Integration
Two-way sync with Tally, Zoho Books, QuickBooks, SAP Business One and Odoo.
Logistics & E-commerce APIs
Shiprocket, Delhivery, Amazon, Flipkart, Shopify and WooCommerce integrations.
Maps, GPS & Device APIs
Google Maps, GPS trackers, biometric devices, CCTV/NVR and IoT platforms.
Technologies we use for API development & integration
- REST
- GraphQL
- Webhooks
- OAuth 2.0 / JWT
- Laravel
- Node.js
- Postman / OpenAPI
- Message queues
API Development & Integration for your industry
See how we apply API development & integration to the specific workflows of each industry.
Distributors, Wholesalers & Traders
Dealer ordering, sales-rep apps, inventory and collections for distributors.
Logistics, Transport & Fleet
Trip management, fleet tracking, POD and billing for transporters.
CCTV & Security Solution Providers
AMC, installation, service tickets and technician apps for CCTV installers.
Clinics, Diagnostics & Healthcare
Appointments, patient records, billing and lab reports for clinics and labs.
Real Estate Developers & Brokers
Lead CRM, inventory, bookings and payment schedules for builders and brokers.
How we deliver
Discover
Free consultation to understand your process, goals and budget.
Plan & Design
Scope document, fixed quote, wireframes and clickable prototype.
Build
Agile sprints with a demo every two weeks — you see progress early.
Launch
Testing, data migration, training and go-live support.
Support & Grow
Warranty, monthly support plans and new features as you grow.
API Development & Integration — frequently asked questions
Can you integrate my software with Tally?
In most cases, yes. Tally Prime supports XML/ODBC-based integration, which we can use to exchange sales, purchases, ledgers and stock with your application. The exact scope depends on your Tally version and setup.
Which payment gateways do you work with?
Razorpay, PayU, Cashfree, PhonePe, Paytm, CCAvenue and Stripe, including UPI, subscriptions, refunds and webhooks for automatic reconciliation.
Can you build APIs for an existing mobile app?
Yes. We can build a new backend API for an existing app, or document and extend your current API with proper security and versioning.
What happens if a third-party API changes?
Under a support plan we monitor integrations and update them when providers release new versions or deprecate endpoints.
Integrations depend on the third-party provider offering an API, SDK or data export, and are confirmed during scoping. Any third-party licences, API or usage fees, subscriptions (e.g. WhatsApp Business API, SMS, maps, cloud hosting) and hardware are billed by the provider and borne by the client.
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Learn moreReady to discuss your API development & integration project?
Tell us about your process or idea. You'll get a free consultation and a clear, fixed quote — no obligation.
- Free consultation
- Prototype before you commit
- Fixed, itemised quote
- You own the software