# Commerce Layer > Commerce Layer is an API-first, headless commerce platform that provides > the infrastructure for globally distributed, multi-market ecommerce. It > enables AI agents, developers, and brands to sell everywhere — online, > in-store, via mobile apps, shoppable links, IoT devices, and autonomous > AI agent commerce. ## Product - [Universal Checkout](https://commercelayer.io/universal-checkout): API-first, stateless checkout to sell on any channel. Supports multiple markets and currencies, any payment gateway or tax calculator. - [Distributed OMS](https://commercelayer.io/distributed-oms): Manage inventory across multiple stock locations with real-time unified visibility, automatic reservation, and intelligent order splitting. - [Promotion Engine](https://commercelayer.io/promotion-engine): Market-specific promotion rules via a visual editor or JSON-based Rules Engine DSL. Supports tiered discounts, bundle promotions, employee pricing, and custom conditions on any order attribute. - [POS System](https://commercelayer.io/pos-system): In-store commerce engine integrated with online channels, sharing customer profiles across touchpoints. ## Core Concepts - [Headless Commerce](https://commercelayer.io/headless-commerce): What headless commerce is, how Jamstack implements it, why content and commerce should stay decoupled, and how Commerce Layer supports headless architectures natively. - [Composable Commerce](https://commercelayer.io/composable-commerce): How composable commerce lets teams assemble best-of-breed tools — CMS, OMS, CRM, PIM, payments — into a tailored stack via APIs. - [Omnichannel Commerce](https://commercelayer.io/omnichannel-commerce): Single-channel vs. omnichannel selling, and how a unified backend powers consistent experiences across web, mobile, in-store, and AI agents. - [Selling Internationally](https://commercelayer.io/selling-internationally): Markets, localization, currency, and regulatory challenges of global ecommerce, and how Commerce Layer supports multi-market selling without data duplication. ## Platform Capabilities - 400+ API endpoints across the Core API - Average API response time: <90ms - 100+ real-time webhook trigger events - 99.99% uptime SLA - 60+ global CDN edge nodes - Multi-market configuration out of the box - SOC 2, ISO 27001, PCI DSS certified ## Developer Documentation - [Core API — Getting Started](https://docs.commercelayer.io/core): REST API fundamentals, authentication, CRUD operations, filtering, webhooks, pagination. - [API Reference](https://docs.commercelayer.io/core-api-reference): Complete list of all 400+ Commerce Layer resources, object structures, and operations. - [API Specification](https://docs.commercelayer.io/core/api-specification): OpenAPI-compliant spec for code generation, mock servers, contract testing. - [Metrics API](https://docs.commercelayer.io/metrics): Extract analytics from commerce data — conversion rates, customer behavior, custom reports. - [Provisioning API](https://docs.commercelayer.io/provisioning): Automate account management, API credentials, and team onboarding programmatically. - [AI & Agentic Commerce](https://docs.commercelayer.io/ai): How AI agents interact with Commerce Layer — MCP servers for schema-aware API access, MCP Inspector for debugging, and security controls for token scoping and approval workflows. - [Rules Engine](https://docs.commercelayer.io/rules-engine): DSL for defining conditions and actions evaluated against order and price payloads. Covers order promotion rules, price list rules, dot-notation condition syntax, and Core API integration. ## Pre-Built Applications (Open Source) - [Cart](https://github.com/commercelayer/mfe-cart): React-based shopping cart. - [Checkout](https://github.com/commercelayer/mfe-checkout): React-based hosted checkout. - [My Account](https://github.com/commercelayer/mfe-my-account): Customer portal — addresses, payment sources, order history. - [Identity](https://github.com/commercelayer/mfe-identity): Customer login and sign-up flows. - [Microstore](https://github.com/commercelayer/mfe-microstore): Self-contained store via URL with query string configuration. - [Demo Store](https://github.com/commercelayer/commercelayer-demo-store): Fully static ecommerce template powered by Commerce Layer. ## Developer Tools & SDKs - [Core MCP Server](https://commercelayer.io/blog/core-mcp-server): Model Context Protocol server giving AI agents schema-aware, permission-safe access to the full Core API — resource discovery, query validation, and documentation retrieval in a single interface. - [JS Auth](https://github.com/commercelayer/commercelayer-js-auth): Lightweight authentication library with token caching. - [JS SDK](https://github.com/commercelayer/commercelayer-sdk): JavaScript wrapper for Commerce Layer API, browser and Node.js. - [Drop-in Library](https://github.com/commercelayer/drop-in.js): Turns any HTML page into a shoppable experience. - [CLI](https://github.com/commercelayer/commercelayer-cli): Command Line Interface for managing Commerce Layer data from the terminal. - [React Components](https://github.com/commercelayer/commercelayer-react-components): Component library for building custom UIs with React. - [Dashboard Apps](https://github.com/commercelayer/dashboard-apps): Open-source, customizable admin dashboard applications (orders, inventory, promotions, etc.) built as a monorepo. Clone, extend, and self-host on Netlify or Vercel. - [App Elements](https://github.com/commercelayer/app-elements): React UI component library used by Dashboard Apps. Provides reusable components, hooks, and helpers for building Commerce Layer admin interfaces. - [Examples](https://github.com/commercelayer/examples): Reference implementations across authentication (MFA, SSO), CMS integrations, serverless functions, search, webhooks, and general API use cases — each paired with a tutorial. ## Pricing - [Pricing Page](https://commercelayer.io/pricing): Full plan details. - Developer Plan: Free forever. 1 organization, 2 users, 2 markets, 1,000 SKUs, 10 links, 100 free live orders/month. Unlimited test orders. - Enterprise Plan: Custom pricing. Unlimited organizations, users, markets, SKUs, and links. Includes Metrics API, Provisioning API, dedicated support, custom user roles, custom identity provider, and enterprise SLAs. ## Blog & Resources - [Blog](https://commercelayer.io/blog): Headless commerce, API-first architecture, and platform news. - [Commerce Layer Core MCP](https://commercelayer.io/blog/core-mcp-server): How the Core MCP server gives AI agents secure, schema-aware access to commerce operations. - [Anomaly Detection](https://commercelayer.io/blog/real-time-anomaly-detection): Real-time order workflow monitoring that detects deviations from dynamic baselines — available on Enterprise plans. - [Rules Engine deep dive](https://commercelayer.io/blog/rules-engine-flex-promotion-examples): Build custom promotions with full flexibility for complex discount logic. - [External payment gateway with Mollie](https://commercelayer.io/blog/connecting-any-payment-gateway-to-commerce-layer-with-external-payments): Connect any payment provider via the external payments feature. Walks through an async Mollie integration using Hono + TypeScript, HMAC-signed webhooks, and both "Place" and "Authorize" order strategies. - [SSO with Next.js and Auth0](https://commercelayer.io/blog/single-sign-on-with-commerce-layer-using-next-js-and-auth0): Implement single sign-on using Auth0 as the identity provider and Commerce Layer for commerce. Covers customer sync, JWT bearer token flow, and rendering authenticated order history with React Components. - [Timed Checkout](https://commercelayer.io/blog/introducing-timed-checkout): Set hard checkout deadlines and reserve stock automatically for flash sales and limited inventory drops. - [Metrics Dashboard](https://commercelayer.io/blog/introducing-the-metrics-dashboard): Real-time commerce performance monitoring inside Commerce Layer Dashboard. - [Black Friday 2025](https://commercelayer.io/blog/black-friday-2025): 260% YoY order growth, zero incidents, globally stable performance. ## Company & Trust - [Customers](https://commercelayer.io/customers): Trusted by global brands including Gucci, Giorgio Armani, Salomon, LEGO, Mammut, Brioni, Rapha, Chilly's, SumUp, iFIT, Calligaris, VIU, Coca-Cola Embonor, Paradox Interactive, Jamie Oliver, and 30+ more. - [GitHub](https://github.com/commercelayer): All open-source apps, SDKs, and developer tools. - [LinkedIn](https://www.linkedin.com/company/commerce-layer): Official LinkedIn presence. - [Status Page](https://status.commercelayer.io): Real-time platform uptime and incident reporting. - [Developers Community](https://commercelayer.io/developers): Community resources and developer tools.