Our AI for eCommerce solution sits on top of your existing stack, whether it's Shopify, Commercetools, SFCC, Magento, nopCommerce, OpenCart, WooCommerce, or a custom-built system. It injects intelligence at the four moments that drive revenue: discovery, consideration, conversion, and retention.
When multiple systems are directly connected, every system change can cause downstream issues. A new ERP field, CRM workflow, marketplace requirement, or inventory rule can affect several integrations at once.
A curated API Suite reduces this dependency by placing a stable API contract between systems and consumers.
A SaaS partner API, a healthcare data API, a marketplace seller API, and a fintech account data API do not work the same way. Each has different data models, authentication requirements, access rules, documentation needs, and compliance considerations.
That is why our custom API development approach starts with your business context, not with a prebuilt template.
External developers need clear endpoints, authentication steps, sample requests, error codes, SDKs, sandbox access, and webhook behavior. Without these, partner onboarding becomes slow and support-heavy.
A well-structured API Suite gives partners a predictable path from access request to production integration.
When APIs change without versioning, documentation, or governance, internal teams are forced to build workarounds. This slows product releases and increases maintenance work.
Contract-first API development gives developers stable interfaces that can be tested, documented, and reused.
Authentication, authorization, rate limits, input validation, logging, and access control must be applied consistently across APIs. Without governance, security varies across endpoints, teams, and systems.
A curated API Suite defines these controls at the architecture level.
Complexity, simplified.
Your tech stack shouldn't feel like a puzzle. Our API Suite provides a unified entry point for connecting all the software you use. From CRM data to financial records, we offer a plug-and-play environment that eliminates silos and powers real-time connectivity at scale. By consolidating disparate data sources into one governed hub, we reduce development overhead and ensure architectural consistency.
API Suite Architecture
Before and After: API Architecture Transformation
N×(N-1)/2 integrations break with every change
Domain model, contract, versioning strategy
Auth, validation, docs, SDKs
Rate limiting, routing, and monitoring
New integrations in days, not months
with OpenAPI specifications, endpoint structures, request formats, response schemas, and error codes.
for real-time event notifications, including order updates, inventory changes, payment status, approvals, and alerts.
for authentication, request routing, rate limiting, quotas, traffic control, logging, and policy enforcement.
with backward compatibility rules, release management, deprecation workflows, and consumer migration support.
with interactive documentation, authentication guides, endpoint references, sample requests, response examples, and error codes.
for JavaScript, TypeScript, Python, Java, or other required languages to simplify developer adoption.
include OAuth 2.0, JSON Web Token validation, API keys, scoped permissions, input validation, rate limits, and audit logs.
with retry logic, signature verification, delivery tracking, failure handling, and subscriber-level settings.
for request volume, endpoint latency, error rates, uptime, traffic trends, and consumer-level usage.
API types, gateway capabilities, and integration patterns
| API Types Built | Gateway Capabilities | Integration Patterns |
|---|---|---|
| REST (OpenAPI 3.0) | OAuth 2.0 / API Keys | Partner onboarding |
| GraphQL | Rate limiting & quotas | Internal service mesh |
| Webhooks (event-driven) | Request/response transform | Mobile backend (BFF) |
| gRPC (internal services) | Versioning & routing | Third-party app integration |
| Streaming (SSE/WS) | Logging & audit trail | Marketplace API |
| Batch export APIs | Developer portal | Embedded platform API |
The team maps out all current system connections and creates a clear blueprint for how data will move. They write the technical rulebook (specifications) for the most important APIs and decide how to keep everything secure.
Engineers set up the central gateway and built the core APIs. They add security features like login requirements and usage limits to keep the system stable. Finally, they launch a portal where developers can find instructions and tools.
The team builds secondary connections, notification tools, and pre-packaged code kits (SDKs) for faster setup. They create a sandbox area where partners can test their code safely. They finish by running a full test with the first real user.
The API suite goes live for the whole company or partners. The team publishes easy-to-follow setup guides and creates a dashboard to track performance. They also establish a clear process for future updates and train staff to manage the system.
Unified REST API layer for a marketplace platform — product, order, inventory, and seller APIs replacing 11 direct integrations between internal systems.
Outcome:
New internal feature integration time reduced from 3 weeks to 2 days; partner integration time reduced from 3 months to 1 week.
Public API suite enabling third-party app developers to build on top of a B2B SaaS platform — GraphQL API, OAuth 2.0, webhook infrastructure, and developer portal.
Outcome:
47 partner apps built on the API within 6 months of launch; 23% of ARR attributed to partner-sourced deals within the first year.
OpenAPI-compliant payment and account data API built to PSD2 standards — with consent management, rate limiting per TPP, and full audit logging for regulatory compliance.
Outcome:
Regulatory audit passed first time; 12 licensed TPP integrations live within 90 days of API launch.
HL7 FHIR-compliant patient data API enabling secure data exchange between provider systems — authentication, consent-based access, and field-level encryption.
Outcome:
Data exchange integration time reduced from 6 months to 3 weeks; full audit trail for all data access from day one.
Book an API Architecture Review — Integration map and OpenAPI specification delivered for your priority API.
Our API Suite can include REST APIs, GraphQL APIs, webhooks, internal service APIs, event-driven APIs, batch export APIs, and streaming APIs. The final mix depends on your systems, data access needs, integration patterns, partner requirements, and business workflows.
Yes. Each API Suite is designed around the client's industry, data model, compliance needs, user roles, and integration workflows. For example, an eCommerce API Suite may focus on product, inventory, order, and pricing APIs, while a healthcare API Suite may focus on secure data exchange and access controls.
Yes. API integration services are a core part of API Suite development. We connect systems such as CRM, ERP, eCommerce platforms, marketplaces, payment gateways, warehouse systems, logistics tools, data warehouses, mobile apps, and third-party applications through a governed API layer.
Our API development services include API architecture planning, contract design, endpoint development, authentication setup, data mapping, backend integration, validation, testing, documentation, gateway configuration, and deployment. We build APIs to support internal users, external partners, mobile applications, SaaS products, and enterprise workflows.
Yes. We can build developer portals with interactive API documentation, endpoint references, authentication instructions, sample requests, response examples, error codes, onboarding guides, and sandbox access. This helps internal teams, partners, and third-party developers understand and integrate with the API Suite faster.
Yes. SDKs can be generated or customized for required languages such as JavaScript, TypeScript, Python, Java, or others. SDKs simplify developer adoption by reducing manual API handling and giving developers ready-to-use methods for authentication, requests, responses, and error handling.
Since 1999, SunTec has been a trusted business process and software engineering partner for technology companies worldwide. Our team of over 1,500 full-time employees delivers innovative services every day to help our clients save time and money.
