Performing API Rate Limiting Bypass

When to Use

Testing whether API rate limiting can be circumvented to enable brute force attacks on authentication endpoints
Assessing the effectiveness of API throttling controls against credential stuffing or account enumeration
Evaluating if rate limits are enforced consistently across all API versions, methods, and encoding formats
Testing if API gateway rate limiting can be bypassed through header manipulation or IP rotation
Validating that rate limits protect against resource exhaustion and denial-of-service conditions

Do not use without written authorization. Rate limit testing involves sending high volumes of requests that may impact service availability.

Written authorization specifying target endpoints and acceptable request volumes
Python 3.10+ with requests, aiohttp, and asyncio libraries
Burp Suite Professional with Turbo Intruder extension for high-speed testing
cURL for manual header manipulation testing
Knowledge of the target's CDN and WAF infrastructure (Cloudflare, AWS WAF, Akamai)
List of rate-limit bypass headers to test