What command triggers the API fuzzer?

You can invoke the skill directly by using the /fuzz-api command followed by your request or endpoint details.

What types of vulnerabilities can this skill detect?

The skill is designed to identify SQL injection, Cross-Site Scripting (XSS), command injection, and various input validation failures.

Should I run this on a production API?

It is best practice to run fuzz testing in a staging or development environment, as the malformed inputs are intended to find edge cases that could cause crashes.

Does it support custom parameters?

Yes, you can specify exactly which parameters or endpoints you want Claude to focus on for more targeted security analysis.

API Fuzzer & Security Tester

Name: API Fuzzer & Security Tester
Author: jeremylongshore

byjeremylongshore

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884

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Security & Testing

Performs automated fuzz testing on REST APIs to identify security vulnerabilities, crashes, and input validation failures.

This skill empowers Claude to conduct proactive security audits on REST APIs by injecting malformed data, boundary values, and random payloads into specified endpoints. It helps developers uncover critical flaws like SQL injection, XSS, and command injection before they reach production. By analyzing API responses for unexpected behaviors and crashes, it provides a comprehensive assessment of an API's robustness and security posture, making it an essential tool for secure software development lifecycles.

Key Features

01884 GitHub stars

02Real-time analysis of API responses for vulnerability signatures

03Automated payload generation for SQLi, XSS, and command injection

04Boundary value analysis for numeric, string, and date parameters

05Comprehensive fuzz test suite generation via the /fuzz-api command

06Customizable targeting for specific endpoints and parameters

Use Cases

01Automating security assessments within a CI/CD development pipeline

02Testing API robustness against malformed or extreme input values

03Discovering SQL injection vulnerabilities in database-driven endpoints

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add jeremylongshore/claude-code-plugins-plus-skills api-fuzzer

For use in Claude.ai and ChatGPT

Download Skill