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api-breaker

Automated API security testing starting from domains. Discovers REST, GraphQL, and SOAP APIs, reconstructs schemas, and tests for BOLA/IDOR, BFLA, mass assignment, JWT attacks, rate limiting bypass, and business logic flaws. Use when user asks to "test API security", "break API", "find API vulnerabilities", "test GraphQL", "test JWT", "API pentest", or provides domains with API endpoints. For authorized testing only.

api-breaker/SKILL.md

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Mar 11, 2026
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MIT

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# API Breaker

Intelligent API security testing. Discovers, maps, and exploits API vulnerabilities.

## Important

CRITICAL: Only test APIs you have explicit authorization to test.

## Instructions

### Step 1: API Discovery

```bash
python scripts/api_discovery.py --domain {target_domain}