# 42crunch api security testing — Agent Skill

Automate API security directly in Claude Code with 42Crunch - automatically audit OpenAPI specs, detect vulnerabilities aligned with OWASP API Security risks (including BOLA/BFLA), and apply AI-powered fixes. Designed for AI-assisted development workflows, it provides continuous guardrails through an audit->scan->reme…

## At a glance

42crunch-api-security-testing is an Agent Skill by 42Crunch-AI in the Coding & Engineering category. In Claude Code it installs with `/plugin install 42crunch-api-security-testing@claude-plugins-official` after adding the anthropics/claude-plugins-official marketplace; other assistants use its SKILL.md instructions as rules. Its source repository has 1 GitHub stars (as of Oct 27, 2026).

## Install

### How to install 42crunch api security testing in Claude Code

1. Add the marketplace

```claude
/plugin marketplace add anthropics/claude-plugins-official
```

2. Install the skill

```claude
/plugin install 42crunch-api-security-testing@claude-plugins-official
```

3. Use it

   These are slash commands for a Claude Code session, not your shell. Claude auto-invokes the skill when your request matches its description — or type its slash command if it exposes one.

### How to install 42crunch api security testing in Claude Desktop

1. Clone the source

```bash
git clone https://github.com/42Crunch-AI/claude-plugins.git
```

2. Find the skill

   It lives in claude-plugins/plugins/api-security-testing — that folder contains the SKILL.md.

3. Add the SKILL.md to your Skills folder

   Settings → Capabilities → Skills → add the folder containing SKILL.md. Claude picks it up automatically.

### How to install 42crunch api security testing in Cursor

1. Clone the source

```bash
git clone https://github.com/42Crunch-AI/claude-plugins.git
```

2. Find the skill

   It lives in claude-plugins/plugins/api-security-testing — that folder contains the SKILL.md.

3. Convert to a Cursor rule

   Create .cursor/rules/42crunch-api-security-testing.mdc and paste the SKILL.md body. Set `alwaysApply` or a glob so the Agent loads it in context.

### How to install 42crunch api security testing in Codex CLI

1. Clone the source

```bash
git clone https://github.com/42Crunch-AI/claude-plugins.git
```

2. Find the skill

   It lives in claude-plugins/plugins/api-security-testing — that folder contains the SKILL.md.

3. Reference in AGENTS.md

   Add the skill's instructions (or a link) to AGENTS.md at your repo root — Codex reads it on every run.

### How to install 42crunch api security testing in Windsurf

1. Clone the source

```bash
git clone https://github.com/42Crunch-AI/claude-plugins.git
```

2. Find the skill

   It lives in claude-plugins/plugins/api-security-testing — that folder contains the SKILL.md.

3. Add to your rules / context

   Paste the SKILL.md instructions into this tool's custom rules or workspace instructions so the agent follows them.

### How to install 42crunch api security testing in Cline

1. Clone the source

```bash
git clone https://github.com/42Crunch-AI/claude-plugins.git
```

2. Find the skill

   It lives in claude-plugins/plugins/api-security-testing — that folder contains the SKILL.md.

3. Add to your rules / context

   Paste the SKILL.md instructions into this tool's custom rules or workspace instructions so the agent follows them.

### How to install 42crunch api security testing in VS Code

1. Clone the source

```bash
git clone https://github.com/42Crunch-AI/claude-plugins.git
```

2. Find the skill

   It lives in claude-plugins/plugins/api-security-testing — that folder contains the SKILL.md.

3. Add to your rules / context

   Paste the SKILL.md instructions into this tool's custom rules or workspace instructions so the agent follows them.

Source: https://github.com/42Crunch-AI/claude-plugins/tree/v1.5.5/plugins/api-security-testing

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Source: https://mcp-skills-hub.vercel.app/skills/42crunch-api-security-testing · MCP Skills Hub · data as of 2026-10-27T16:23:26Z