---
name: commerce-platform-sdk
description: Public REST/GraphQL APIs, real-time webhooks engine, TypeScript/Python SDKs, plugin marketplace, and multi-tenant core.
---

# Skill: Commerce Platform SDK & APIs (Phase 13)

## Overview
Phase 13 transforms the internal Commerce OS into an open developer platform allowing third-party developers, agencies, and enterprises to extend the platform.

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## Technical Capabilities
- **Public REST & GraphQL APIs**: Fully documented OpenAPI 3.0 / GraphQL schemas for Catalog, Inventory, Orders, Fleet, and Finance.
- **Real-time Webhooks Engine**: Subsecond event notifications (`order.created`, `stock.low`, `shipment.delivered`, `payout.processed`).
- **SDK Suite**: Official Client SDKs in TypeScript, Python, Go, Swift, and Kotlin.
- **Plugin Marketplace**: Developer Portal allowing third-party apps to monetize plugins (custom themes, specialized ERP connectors, custom carrier drivers).
- **Multi-Tenant Architecture**: Complete tenant isolation, custom domain mapping, dedicated database schemas, and white-label branding controls.