API and Communication

This section defines the REST API contract, endpoint catalog, request/response schemas, and design standards for the Open Projects Hub.

Documents

• API Design Standards: REST conventions, versioning strategy, error handling, authentication and authorization patterns, rate limiting, and observability guidelines.
• API Contract: Complete endpoint catalog with detailed request/response schemas, shared JSON schemas, status code matrix, and error examples for all API domains (Auth, Clients, Projects, Refinement, Requirements, Exports, Credits, API Keys, Client Review, User Profile).

Related ADRs

• ADR-002: Backend Framework (FastAPI)
• ADR-005: Authentication and Authorization Strategy (Custom JWT)