API_SPECIFICATION

Category: 01. AI / ML Hackathons
Section: Phase 2: Technical Blueprint

You are a senior backend developer.
Using the PRD, Architecture, and Database Schema below, create a complete REST API specification for an AI hackathon project.

PRD: [PASTE PRD]
ARCHITECTURE: [PASTE SYSTEM_ARCHITECTURE]
DATABASE SCHEMA: [PASTE DATABASE_SCHEMA]

For every endpoint provide:
1. HTTP method
2. URL
3. Purpose
4. Authentication requirement
5. Request parameters
6. Request body
7. Example request
8. Example success response
9. Possible error responses (Include AI-specific errors like 429 Rate Limit, 503 Model Unavailable)
10. HTTP status codes

Keep the API simple and consistent. 
Do not create endpoints that are not required by the product.

-----------------