# Working with APIs and JSON Payloads

> Master API interactions and JSON parsing for AI security. Learn to send adversarial payloads, handle rate limits, and parse unpredictable LLM responses.

Canonical: https://codelivly.com/rooms/working-with-apis-and-json-payloads
Last updated: 2026-10-02

| | |
|---|---|
| Level | Beginner |
| Category | Cybersecurity |
| Lessons | 3 |
| Estimated time | 30 min |
| XP | 100 |

This module dives into the practical mechanics of interacting with Large Language Model APIs using Python. You will learn how to construct HTTP requests, manage authentication, handle rate limits, and parse complex JSON payloads. Crucially, you will explore how to handle the unpredictable nature of LLM outputs, implement robust error handling, and automate the extraction of data from unstructured or semi-structured API responses.

## Lessons

1. What is a REST API and Why AI Apps Rely on Them (30 min)
2. Reading and Constructing JSON Payloads (30 min)
3. Authentication Methods (API keys, Bearer tokens, OAuth basics) (30 min)

## Related

- [Learning path: Python for AI Security Testing](https://codelivly.com/learning-paths/python-for-ai-security-testing)
- [All rooms](https://codelivly.com/rooms)