What is API-first commerce?

Build and integrate faster with API-first commerce

APIs are at the center of the digital operations of every enterprise. However, not all APIs are built the same. With a modern commerce platform designed to be API first, you can easily and effortlessly connect the dots within your business ecosystem.

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Fast Time-to-Market and low TCO with an API-first approach.

The API-first approach is a software development methodology that prioritizes APIs as the foundation of an application, rather than treating them as an afterthought. This approach involves designing and developing APIs before writing any other code. We've made everything for a world connected by APIs, so the commercetools APIs are extensive, functional, streamlined, and very well documented, allowing you to dive right into creating a commerce experience.

The benefits of an API-first approach

An API-first approach gives businesses the flexibility to create, customize and evolve digital experiences across any channel.

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Robust REST APIs

Our RESTful APIs are easy to use and enhance discoverability of our features, allowing any developer to quickly pick up and work with commercetools.

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100% GraphQL coverage

GraphQL is a data query language for APIs that lets developers retrieve exactly the data they want from any source. At 100% coverage, commercetools has the highest GraphQL support of any commerce platform.

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API extensibility

commercetools APIs are highly extensible. Our patented API extensibility lets you add functionality and tailor how an API behaves to your exact needs.

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API-first foundation for AI

An API-first foundation gives AI the connectivity and real-time data it needs to act across your commerce stack.

API-first is the foundation for modern commerce

An API-first architecture provides the foundation needed to connect data, channels and AI capabilities across the commerce ecosystem.

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API-first connectivity

Connect commerce capabilities across systems, channels and AI agents through flexible APIs that enable real-time interactions and actions.

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Real-time data access

Give AI the contextual data it needs to understand customers, products, inventory and business rules to make smarter decisions.

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Flexible experience orchestration

Deliver adaptive experiences across web, mobile, IoT and emerging AI channels while maintaining control over the customer journey.

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Continuous innovation at scale

Evolve your commerce capabilities as new technologies emerge without disrupting existing experiences or core systems.

How to build with API-first commerce

Build the right solution for your business by combining modular commerce capabilities.

B2C Commerce

Deliver seamless B2C journeys across digital and physical channels with connected product, pricing, inventory and customer data.

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B2B Commerce

Assemble complex B2B commerce flows using modular building blocks for account hierarchies, contract pricing, approvals and self-service purchasing.

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AgenticLift

Add a modular layer for agentic commerce on top of your existing stack. Enable AI-powered shopping experiences by connecting autonomous agents to your commerce capabilities.

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WHY COMMERCETOOLS 

Leading enterprises building with commercetools

The brands, retailers and B2B organizations leveraging commercetools.

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Cimpress

The leader of mass customization of bespoke prints launched 2 large projects in 5 weeks, thanks to headless commerce.

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Leebmann24

The automotive eCommerce retailer increased basket size by 22% while simplifying developer experiences.  

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Flügger

The manufacturer and distributor of paints increased conversion rates by 500% after rebuilding eCommerce in only 3 months.

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Resources

Explore API-first commerce insights

Explore resources, best practices and expert perspectives on building flexible commerce experiences.

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Blog

APIs in the era of agentic AI: Redefining developer experience and commerce

Why API-first is a business differentiator — strong developer experience speeds delivery and readies your commerce stack for AI agents.

Blog

Mastering omnichannel commerce with an API orchestration layer

How an API orchestration layer ties channels and systems together for a seamless omnichannel experience.

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Booklet

APIs for Modern Commerce

A deep dive into what APIs are, how to model and deploy them, and why combining APIs with microservices unlocks flexibility.

Frequently asked questions

Learn more about how our API-first approach works and what it means for your business.

What is API-first commerce?

API-first commerce means every capability — catalog, cart, checkout, pricing — is exposed through APIs from the ground up, so you can connect, extend and build experiences across any channel without being locked into a fixed front end.

Why does API quality matter?

Not all APIs are equal. Well-designed, well-documented APIs make it faster and cheaper to integrate systems, add channels and adapt over time — while poor APIs create bottlenecks and technical debt.

How do commercetools APIs integrate with other systems?

commercetools exposes flexible REST and GraphQL APIs, so you can connect it to your existing ERP, CMS, payment and other systems and orchestrate data across your whole business ecosystem.

Does commercetools support GraphQL?

Yes. commercetools offers both REST and GraphQL APIs, letting developers query exactly the data they need efficiently and build performant, tailored commerce experiences.

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