Commerce Layer Core MCP & Commerce API

Commerce Layer, Inc. is an API-first commerce infrastructure vendor that, according to its founders' message, started in 2017 betting that commerce would become headless. It now positions the platform as infrastructure for selling through AI agents, headless storefronts, apps and retail stores.

The platform exposes universal checkout, a distributed order management system, a promotion engine and a POS engine on the same API. In June 2026 the company released a Core MCP server that lets AI agents discover schemas, validate queries and read documentation before reading or writing orders, pricing, inventory and payments.

• Universal checkout: stateless checkout across markets and currencies.
• Distributed OMS: inventory and order management across locations.
• Promotion engine: market-specific discount rules.
• POS system: in-store engine on the same API as online channels.
• Core MCP: schema discovery, query validation and docs access for AI agents.
• Additional MCP servers: Metrics MCP for analytics and Documentation MCP for developer docs.

• Vietnamese brands selling cross-border to several markets can run one checkout and promotion engine per country.
• Retail chains can unify online orders and in-store POS on one order and inventory model.

• One API for online, in-store and agent-driven channels, reducing duplicated commerce logic.
• Stateless checkout across markets and currencies, with any payment gateway or tax calculator connectable.
• Distributed OMS and promotion engine support multi-market operations.
• Core MCP uses the same authentication and scopes as other integrations, so agent access follows existing permissions.

Commerce vendors are exposing their platforms to AI agents through MCP and agent-ready payment flows as agentic shopping emerges. Vietnamese and Southeast Asian brands expanding across several countries and currencies need composable checkout and order management rather than monolithic storefronts.

Commerce Layer, Inc.; founded 2017 per the founders' message. Registered office in Woodside, CA, US, with an EU representative in Prato, Italy. Claims a 99.99% uptime guarantee. A Payments API redesign for agent-driven flows was announced in July 2026.