MACH Architecture

Our vision of MACH

MACH — Microservices, API-first, Cloud-native, Headless — is the state of the art for modular, scalable, decoupled information systems. We go beyond the acronym: MACH is an architectural philosophy that frees organisations from the rigidity of monoliths.

In the era of industrial AI, MACH is the indispensable foundation of the Agentic Enterprise. AI agents need autonomous services, well-documented APIs, elastic infrastructure and decoupled entry points — a monolith cannot be "agentified", it must first be decomposed. The trap to avoid is SaaS lock-in, the "technological zombie": every MACH component must be replaceable, or composability is meaningless.

Microservices and API-First

Decomposing into microservices is an organisational decision guided by business bounded contexts, not a technical exercise. We use Domain-Driven Design — strategic and tactical — to find natural service boundaries, and right-size services by business cohesion rather than an arbitrary rule. Communication spans the full set of patterns: synchronous (REST, gRPC, GraphQL), asynchronous (Pub/Sub, Kafka), Saga and CQRS.

API-First means the API is designed before the code: the contract is the first artifact, validated by consumers before implementation. Our method runs Design → Mock → Implement → Test (contract testing with Pact) → Publish. The major evolution is API-First to AI-First: every API is built to be consumed by AI agents as much as humans, with rich semantic descriptions and exposure through MCP servers for autonomous discovery.

Cloud-native, Headless and composable

Cloud-native is not "deployed on the cloud" but "designed to exploit the cloud". Our architectures follow the 12-Factor App enriched with modern patterns — immutable containers, Kubernetes or serverless orchestration, business-metric autoscaling, resilience (circuit breakers, retries, bulkheads) and native OpenTelemetry observability — deployed via GitOps (ArgoCD, Flux).

Headless decouples content and business logic from presentation, so a single backend serves many frontends: web, mobile, kiosk, voice assistant, AI agent. We deploy headless CMS (Contentful, Strapi, Sanity) and headless commerce (Commercetools, Medusa, Saleor), assembled into a composable, best-of-breed architecture unified by a performant experience layer (Astro, Next.js, Nuxt).

MACH and agentic AI

MACH is the natural foundation of the Agentic Enterprise. Microservices give agents autonomous services to interact with; API-First makes those services discoverable via MCP; cloud-native elasticity absorbs the variable load agents generate; and Headless turns the AI agent into a new "head" that consumes content and business logic.

This is where Generative UI comes into its own: the interface is no longer pre-built by a developer but generated on the fly by an agent composing UI components from context. The designer becomes a system architect — defining tokens, components and rules — while the agent composes the experience in real time. We are active members of the MACH Alliance.

Ready to go composable? Get in touch.