How long does API development or integration take?

A simple integration with a well-documented third-party API typically takes 1–3 weeks . Complex custom API development with authentication, multiple endpoints, and comprehensive documentation can take 4–8 weeks . Enterprise integrations connecting multiple legacy systems with data transformation and real-time sync requirements can take 2–4 months . We break work into testable milestones so you see progress regularly.

How much does API development cost?

Simple integrations start at accessible ranges for Nepali businesses. Complex custom APIs, multi-system integrations, or enterprise middleware require larger investment. We quote based on actual scope after understanding your systems, data flows, and business requirements—not generic packages. Contact Webtech Nepal for a free discussion and honest estimate.

Will I own the API code and documentation?

Yes. Once paid in full, you own everything: source code, documentation, authentication credentials, and integration architecture. We use standard frameworks and write clean, documented code that your future developers or our team can maintain without reverse-engineering. No proprietary lock-in, no hidden licensing fees.

Can you build APIs that external developers or partners can use?

Absolutely. We design developer-friendly APIs with clear documentation, consistent naming, predictable behavior, and sandbox environments for testing. We implement proper versioning so updates don’t break existing integrations, and rate limiting to ensure fair usage. Whether you’re building a platform ecosystem or enabling partner connections, we make your API easy and safe for others to adopt.

Do you provide support after integration goes live?

Yes. We offer monthly maintenance plans covering monitoring, performance tuning, security updates, API version migrations, and new feature additions. Many clients stay with us long-term because APIs aren’t “set and forget”—external services update, business needs evolve, and integrations require ongoing attention to stay reliable.

What if I don't know which systems need to connect?

That’s common. We start with a workflow audit : mapping how information currently moves through your business, where staff do repetitive data entry, where errors typically occur, and where customers experience delays. This audit often reveals integration opportunities that weren’t obvious. We recommend starting with the connection that saves the most time or prevents the most errors, then expanding from there.

How do I get started?

Simple. Contact Webtech Nepal and tell us what systems you’re using, where things feel slow or broken, and what you’d like to automate. We’ll ask about your current software, data volume, and security requirements, then come back with honest feedback on approach, timeline, and cost. No commitment required for the first conversation. If we’re a good fit, we’ll map out the next steps together.

API Development & System Integration

Q: What exactly is an API and why do I need one?

An API (Application Programming Interface) is just a set of rules that lets one software program ask another program for data or action. Think of it like a waiter taking your order to the kitchen and bringing back your food. You need APIs when you want your website, app, or internal tools to share information automatically—without someone copying and pasting between screens. If your team is doing repetitive data entry between systems, you probably need API integration.

Q: What's the difference between REST and GraphQL APIs?

REST is the traditional approach: you request specific pieces of data from defined endpoints. It’s simple, widely supported, and great for standard operations. GraphQL lets you request exactly the data you need in a single query, reducing over-fetching and under-fetching. We recommend REST for most projects because it’s proven and well-understood. We use GraphQL when your frontend needs flexible data from complex, interconnected sources.

Q: What happens if an API we depend on changes or breaks?

We build integrations with version awareness and graceful failure handling . When an external API updates, we adapt our integration rather than letting it break silently. We implement fallback behaviors, retry logic with exponential backoff, and alert systems that notify us of problems before your team or customers notice. We also monitor API provider changelogs and test in staging environments before production deployments.

Connected systems built by Nepal’s most reliable team. We make your apps, websites, and business tools talk to each other—so data flows smoothly and your team stops doing the same work twice.

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We help organizations build stronger digital presence through web design, branding, SEO and digital solutions.

Years of Experience: 9+
Projects Delivered: 600+
Projects Annually: 70+

API Development & System Integration

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When your systems connect properly, your business runs faster and your people work smarter.

At Webtech Nepal, we build the invisible connections that make modern businesses work. An API is just a way for one piece of software to ask another piece of software for information or action. When done right, it means your website can check inventory in real time, your CRM can pull customer data from your sales platform, and your accounting software can record transactions automatically. When done wrong, you get broken connections, data that doesn’t match, and staff spending hours copying information between systems. We do it right: clean, documented APIs that other developers can actually use, secure integrations that protect sensitive data, and monitoring that catches problems before your team notices them.

Whether you need to connect your website to a payment gateway, build an API that mobile apps can use, or stitch together five different business tools into one smooth workflow, we can help. We listen to how your business actually operates, map out where data needs to move, and build connections that are reliable and easy to maintain. No fragile hacks, no undocumented shortcuts, no “it works on my machine” surprises. Just solid plumbing that keeps your digital business running day after day.

We build API and integration solutions that help Nepali businesses automate work, reduce errors, and create seamless experiences for customers and staff. Here’s what we do:

Custom API Development

Built-from-scratch interfaces that let your software talk to other software. We design RESTful and GraphQL APIs with clear endpoints, proper authentication, and comprehensive documentation—so other developers can integrate with your system without guessing how it works.

Third-Party API Integration

Connections to services your business already uses. We integrate with payment gateways, SMS providers, email platforms, map services, social media, accounting software, and logistics systems—making your existing tools work together instead of operating in isolation.

Payment Gateway Integration

Secure connections to local and international payment processors. We integrate eSewa, Khalti, Fonepay, Stripe, PayPal, and bank APIs—handling transaction processing, refund flows, webhook notifications, and reconciliation so your finance team doesn’t chase missing payments.

CRM & ERP Integration

Links between your customer database and business management systems. We connect Salesforce, HubSpot, Zoho, SAP, or custom systems—syncing contacts, orders, inventory, and support tickets so every department sees the same accurate information.

E-Commerce Platform Integration

Connections that let your online store talk to fulfillment, accounting, and marketing tools. We sync orders, update stock levels, trigger shipping labels, and record revenue automatically—cutting manual work and reducing the errors that frustrate customers.

Social Media & Marketing API Integration

Automated posting, analytics pulling, and lead capture from social platforms. We connect Facebook, Instagram, LinkedIn, Twitter, and Google APIs—scheduling content, tracking campaigns, and feeding social leads directly into your sales pipeline.

Cloud Service Integration

Connections to AWS, Google Cloud, Azure, and other cloud platforms. We set up file storage, serverless functions, database syncing, and CDN delivery—leveraging cloud power without locking you into one provider’s ecosystem.

Legacy System Integration

Modern connections to older software that still runs critical parts of your business. We build middleware, translation layers, and API wrappers that let your legacy database or internal tool communicate with modern apps—extending the life of working systems without full replacement.

Real-Time Data Sync

Live connections that keep information current across platforms. We implement WebSockets, server-sent events, and polling strategies—so when one system updates, all connected systems see the change immediately, not hours later.

Mobile App Backend APIs

Server-side interfaces that power your iOS and Android apps. We build authentication, data fetching, push notification handling, and file upload endpoints—optimized for mobile network conditions and battery efficiency.

Webhook & Event-Driven Architecture

Systems that react automatically when something happens elsewhere. We build webhook handlers, event buses, and message queues—triggering actions like sending emails, updating dashboards, or notifying teams without constant polling or manual checking.

API Documentation & Developer Portals

Clear guides that help other teams use your APIs correctly. We write interactive documentation, provide code examples, and set up sandbox environments—reducing integration time for partners and support burden for your team.

Our Process

Discovery & Planning

We start by mapping how your business actually works: what systems you use, where data lives, who needs what information, and where things currently break or slow down. This shapes our integration strategy, technology choices, and success metrics—so every connection solves a real problem.

System Audit & Mapping

We document your existing software landscape: versions, capabilities, limitations, and data structures. This audit reveals integration points, potential conflicts, and opportunities to simplify before we start building—preventing nasty surprises mid-project.

API Design & Architecture

We design the interface contract: what data gets exchanged, in what format, how authentication works, and what happens when something goes wrong. Good design here prevents endless debugging later. We prioritize security, scalability, and clarity from the start.

Development & Implementation

We write the code that connects your systems. Clean, tested, documented code that handles edge cases gracefully: network timeouts, partial failures, data format mismatches, and rate limiting. We don't just make the happy path work—we make it robust.

Authentication & Security Setup

We implement proper access controls: API keys, OAuth tokens, JWT authentication, IP whitelisting, and encrypted transmission. Your data is valuable and often sensitive; we treat it that way from the first connection request.

Testing & Validation

We test integrations thoroughly: unit tests for individual functions, integration tests for complete flows, load tests for performance under pressure, and failure tests for graceful degradation. We verify data accuracy, timing, and security before anything touches production.

Documentation & Handover

We write clear documentation that your team and future developers can actually use. Endpoint references, authentication steps, error codes, rate limits, and example requests in multiple programming languages. Knowledge that stays with your business.

Deployment & Monitoring

We deploy to production with monitoring dashboards, alert systems, and logging in place. We track response times, error rates, data throughput, and system health—catching issues before they affect your operations or customers.

Maintenance & Evolution

We keep integrations running as APIs update, systems change, and your business grows. Version management, deprecation handling, performance tuning, and new feature additions—ensuring your connections stay reliable as the software landscape shifts.

Capabilities Spectrum

Multi-disciplinary expertise across industries, core technologies, and engineering services.

What Our clients say

Our clients have different requirements, industries and project goals. Their feedback gives visitors a better understanding of what it is like to work with our team.

We are extremely pleased with the website developed by Webtech Nepal. Their team was professional, creative, responsive, and attentive to our requirements. They delivered a modern, user-friendly website with excellent support throughout the process. We highly recommend Webtech Nepal for their reliable, quality, and professional web development services.

Chhabi Education Services

chhabieducation.com

We found Webtech Nepal as a genuine organization with expert and well experienced team members. Highly recommended for professional website development 👌. Thank you very much for all your support, guidance and assistance.

Indaram Health

indaramhealth.com

I had a great experience working with Webtech Nepal for developing the news portal for Review Nepal. They delivered a clean, modern, and fully functional news website that meets all our requirements. One of the most impressive parts of the project was their ability to successfully migrate and import around 13,000 old news articles from the previous system without data loss or major issues. That level of technical execution shows real expertise in handling large-scale content systems. The team was responsive, professional, and detail-oriented throughout the development process. They made sure everything worked smoothly, from design to backend functionality. I would confidently recommend Webtech Nepal for anyone looking to build a reliable and scalable news portal. Great work from an expert team—thank you for the solid delivery and support.

Sagarmatha Network

reviewnepal.com

Fantastic experience working with Webtech Nepal! They handled the full web design and development for Hotel Euro and exceeded our expectations. The site is fast, easy to use, and looks great. Highly recommended for anyone needing professional web services in Nepal!

Hotel Euro

hoteleuro.com.np

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Frequently Asked Questions

An API (Application Programming Interface) is just a set of rules that lets one software program ask another program for data or action. Think of it like a waiter taking your order to the kitchen and bringing back your food. You need APIs when you want your website, app, or internal tools to share information automatically—without someone copying and pasting between screens. If your team is doing repetitive data entry between systems, you probably need API integration.

REST is the traditional approach: you request specific pieces of data from defined endpoints. It’s simple, widely supported, and great for standard operations. GraphQL lets you request exactly the data you need in a single query, reducing over-fetching and under-fetching. We recommend REST for most projects because it’s proven and well-understood. We use GraphQL when your frontend needs flexible data from complex, interconnected sources.

We implement multiple layers: encrypted HTTPS transmission, authentication tokens that expire regularly, API keys with limited permissions, IP address restrictions, input validation to prevent attacks, and rate limiting to block abuse. For sensitive data like payments or personal information, we add additional encryption and compliance measures. Security isn’t a feature we bolt on—it’s built into every integration from day one.

Yes. Many businesses run on older software that still works but lacks modern interfaces. We build middleware and adapter layers that translate between old and new systems. We might read from a database directly, parse exported files, or create wrapper services that expose modern APIs on top of legacy infrastructure. It’s often more cost-effective than replacing working systems entirely.

We build integrations with version awareness and graceful failure handling. When an external API updates, we adapt our integration rather than letting it break silently. We implement fallback behaviors, retry logic with exponential backoff, and alert systems that notify us of problems before your team or customers notice. We also monitor API provider changelogs and test in staging environments before production deployments.

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Planning a new website, eCommerce store, or custom software project? Talk to Webtech Nepal's development team in Kathmandu about your requirements, project scope, and budget.

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API Development & System Integration