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APISecurityTester

Specialized testing for RESTful, GraphQL APIs, and JWT/OAuth mechanisms.

Skill by HelloEveryboby

IndexedMIT★ 18
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Install

Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install skill/helloeveryboby-apisecuritytester

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Specialized testing for RESTful, GraphQL APIs, and JWT/OAuth mechanisms.

Use cases: backend, testing, security

Reviews

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Permissions

What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

Tools
No tools found
Secrets
None asked for
Install scripts
None found
Runs as
Python package

Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/apisecuritytester

What's inside

Skill name
APISecurityTester
Description
Specialized testing for RESTful, GraphQL APIs, and JWT/OAuth mechanisms.
License
MIT
Instructions
10 lines in SKILL.md · view on GitHub

Before installing

  • Ships executable scripts

Agent Skills spec issues

  • name: only lowercase letters, digits and single hyphens allowed
  • name: "APISecurityTester" does not match folder "api-security-tester"

Files (2)

  • SKILL.md
  • main.py

SKILL.md (first lines)

# APISecurityTester

Butler's API security specialist. It focuses on modern interface vulnerabilities like GraphQL depth limits, JWT claim tampering, and OAuth flow defects.

## Capabilities
- **JWT Analysis**: Decodes and tests for common JWT vulnerabilities (alg: none, weak secrets).
- **GraphQL Testing**: Introspection checks and complexity analysis.
- **REST Audit**: Automated scanning of REST endpoints.

From HelloEveryboby/Butler, MIT.

More from HelloEveryboby/Butler

Signals

Stars
18
Forks
5
Open issues
0
Last commit (this folder)
Jul 9, 2026 (3 months ago)

From GitHub (fetched Oct 24, 2026).

Details

License
MIT
Repository
github.com/HelloEveryboby/Butler
First seen
Oct 24, 2026
Last checked
Oct 24, 2026
Source
GitHubgithub-graphql

More from HelloEveryboby

Cite this page

APISecurityTester skill. Agent Mart. https://agentmart.dev/skills/helloeveryboby-apisecuritytester (last updated 2026-10-24)