API Architecture (API-First Design)
Version: v1.0
Status: Draft → Frozen (Week 0)
Approach: OpenAPI 3.1 specification drives implementation
Last Updated: 15 January 2026
API-First Principles
- Contract-First: OpenAPI spec written BEFORE code
- Single Source of Truth: All SDKs generated from spec
- Backward Compatibility: Never break existing clients
- Explicit Over Implicit: Clear request/response schemas
- Fast by Default: Design for caching and minimal round trips