api-security-testing

sickn33/agentic-awesome-skills · plugins/agentic-awesome-skills-claude/skills/api-security-testing/SKILL.md

API security testing workflow for REST and GraphQL APIs covering authentication, authorization, rate limiting, input validation, and security best practices.

Software EngineeringNo license★ 45496⑂ 6664commit 5cf4dfe

Install skillView source on GitHub

What this skill does

API Security Testing Workflow

Overview

Specialized workflow for testing REST and GraphQL API security including authentication, authorization, rate limiting, input validation, and API-specific vulnerabilities.

When to Use This Workflow

Use this workflow when:

Testing REST API security
Assessing GraphQL endpoints
Validating API authentication
Testing API rate limiting
Bug bounty API testing

Workflow Phases

Phase 1: API Discovery

Skills to Invoke

api-fuzzing-bug-bounty - API fuzzing
scanning-tools - API scanning

Actions

Enumerate endpoints
Document API methods
Identify parameters
Map data flows
Review documentation

Copy-Paste Prompts

Use @api-fuzzing-bug-bounty to discover API endpoints

Phase 2: Authentication Testing

Skills to Invoke

broken-authentication - Auth testing
api-security-best-practices - API auth

Actions

Test API key validation
Test JWT tokens
Test OAuth2 flows
Test token expiration
Test refresh tokens

Copy-Paste Prompts

Use @broken-authentication to test API authentication

Phase 3: Authorization Testing

Skills to Invoke

idor-testing - IDOR testing

Actions

Test object-level authorization
Test function-level authorization
Test role-based access
Test privilege escalation
Test multi-tenant isolation

Copy-Paste Prompts

Use @idor-testing to test API authorization

Phase 4: Input Validation

Skills to Invoke

api-fuzzing-bug-bounty - API fuzzing
sql-injection-testing - Injection testing

Actions

Test parameter validation
Test SQL injection
Test NoSQL injection
Test command injection
Test XXE injection

Copy-Paste Prompts

Use @api-fuzzing-bug-bounty to fuzz API parameters

Phase 5: Rate Limiting

Skills to Invoke

api-security-best-practices - Rate limiting

Actions

Test rate limit headers
Test brute force protection
Test resource exhaustion
Test bypass techniques
Document limitations

Copy-Paste Prompts

Use @api-security-best-practices to test rate limiting

Phase 6: GraphQL Testing

Skills to Invoke

api-fuzzing-bug-bounty - GraphQL fuzzing

Actions

Test introspection
Test query depth
Test query complexity
Test batch queries
Test field suggestions

Copy-Paste Prompts

Use @api-fuzzing-bug-bounty to test GraphQL security

Phase 7: Error Handling

Skills to Invoke

api-security-best-practices - Error handling

Actions

Test error messages
Check information disclosure
Test stack traces
Verify logging
Document findings

Copy-Paste Prompts

Use @api-security-best-practices to audit API error handling

API Security Checklist

[ ] Authentication working
[ ] Authorization enforced
[ ] Input validated
[ ] Rate limiting active
[ ] Errors sanitized
[ ] Logging enabled
[ ] CORS configured
[ ] HTTPS enforced

Quality Gates

[ ] All endpoints tested
[ ] Vulnerabilities documented
[ ] Remediation provided
[ ] Report generated

Related Workflow Bundles

security-audit - Security auditing
web-security-testing - Web security
api-development - API development

Limitations

Use this skill only when the task clearly matches the scope described above.
Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.

Installation

Copy a source-pinned command for your client. You run it yourself.

Destination: .claude/skills/api-security-testing · pinned to the source commit

# Run from your project root
git clone https://github.com/sickn33/agentic-awesome-skills.git .skillboard-tmp
git -C .skillboard-tmp checkout 5cf4dfeb13ea966daa1e117897689cd7991e3f44
mkdir -p ".claude/skills"
cp -r ".skillboard-tmp/plugins/agentic-awesome-skills-claude/skills/api-security-testing" ".claude/skills/"
rm -rf .skillboard-tmp

Review the source before running. This copies files into your project; it is not a one-click install and does not verify runtime safety.

New here? Step-by-step setup – from installing the agent to using the skill

Operating systemAgentI already use Claude Code

1
Install Git
Install Git with your package manager (Debian/Ubuntu shown; use dnf/pacman on others). Official download.
```
sudo apt update && sudo apt install -y git
```
2
Install Claude Code
Requires Node.js 18+. Install the CLI globally: Official docs. (command-line tool)
```
npm install -g @anthropic-ai/claude-code
```

Get the skill, pinned to its exact version

Open a terminal and run these steps (they clone the source, check out the exact commit, and copy the skill into place):

# Run from your project root
git clone https://github.com/sickn33/agentic-awesome-skills.git .skillboard-tmp
git -C .skillboard-tmp checkout 5cf4dfeb13ea966daa1e117897689cd7991e3f44
mkdir -p ".claude/skills"
cp -r ".skillboard-tmp/plugins/agentic-awesome-skills-claude/skills/api-security-testing" ".claude/skills/"
rm -rf .skillboard-tmp

Destination: .claude/skills/api-security-testing

4
Use it in Claude Code
Open Claude Code in your project. It reads skills from the folder above, so api-security-testing is now available. Always review the source before using it – static checks cannot prove runtime safety.

Security & Audits

Scanner static-checks@0.1.0 · commit 5cf4dfeb13ea. Static checks cannot prove runtime safety – review the source and the exact diff before installing. How checks work.

No static rules matched. This is not a safety guarantee.

api-security-testing

sickn33/agentic-awesome-skills · plugins/agentic-awesome-skills-claude/skills/api-security-testing/SKILL.md

API security testing workflow for REST and GraphQL APIs covering authentication, authorization, rate limiting, input validation, and security best practices.

Software EngineeringNo license★ 45496⑂ 6664commit 5cf4dfe

Install skillView source on GitHub

What this skill does

API Security Testing Workflow

Overview

Specialized workflow for testing REST and GraphQL API security including authentication, authorization, rate limiting, input validation, and API-specific vulnerabilities.

When to Use This Workflow

Use this workflow when:

Testing REST API security
Assessing GraphQL endpoints
Validating API authentication
Testing API rate limiting
Bug bounty API testing

Workflow Phases

Phase 1: API Discovery

Skills to Invoke

api-fuzzing-bug-bounty - API fuzzing
scanning-tools - API scanning

Actions

Enumerate endpoints
Document API methods
Identify parameters
Map data flows
Review documentation

Copy-Paste Prompts

Use @api-fuzzing-bug-bounty to discover API endpoints

Phase 2: Authentication Testing

Skills to Invoke

broken-authentication - Auth testing
api-security-best-practices - API auth

Actions

Test API key validation
Test JWT tokens
Test OAuth2 flows
Test token expiration
Test refresh tokens

Copy-Paste Prompts

Use @broken-authentication to test API authentication

Phase 3: Authorization Testing

Skills to Invoke

idor-testing - IDOR testing

Actions

Test object-level authorization
Test function-level authorization
Test role-based access
Test privilege escalation
Test multi-tenant isolation

Copy-Paste Prompts

Use @idor-testing to test API authorization

Phase 4: Input Validation

Skills to Invoke

api-fuzzing-bug-bounty - API fuzzing
sql-injection-testing - Injection testing

Actions

Test parameter validation
Test SQL injection
Test NoSQL injection
Test command injection
Test XXE injection

Copy-Paste Prompts

Use @api-fuzzing-bug-bounty to fuzz API parameters

Phase 5: Rate Limiting

Skills to Invoke

api-security-best-practices - Rate limiting

Actions

Test rate limit headers
Test brute force protection
Test resource exhaustion
Test bypass techniques
Document limitations

Copy-Paste Prompts

Use @api-security-best-practices to test rate limiting

Phase 6: GraphQL Testing

Skills to Invoke

api-fuzzing-bug-bounty - GraphQL fuzzing

Actions

Test introspection
Test query depth
Test query complexity
Test batch queries
Test field suggestions

Copy-Paste Prompts

Use @api-fuzzing-bug-bounty to test GraphQL security

Phase 7: Error Handling

Skills to Invoke

api-security-best-practices - Error handling

Actions

Test error messages
Check information disclosure
Test stack traces
Verify logging
Document findings

Copy-Paste Prompts

Use @api-security-best-practices to audit API error handling

API Security Checklist

[ ] Authentication working
[ ] Authorization enforced
[ ] Input validated
[ ] Rate limiting active
[ ] Errors sanitized
[ ] Logging enabled
[ ] CORS configured
[ ] HTTPS enforced

Quality Gates

[ ] All endpoints tested
[ ] Vulnerabilities documented
[ ] Remediation provided
[ ] Report generated

Related Workflow Bundles

security-audit - Security auditing
web-security-testing - Web security
api-development - API development

Limitations

Use this skill only when the task clearly matches the scope described above.
Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.

Installation

Copy a source-pinned command for your client. You run it yourself.

Destination: .claude/skills/api-security-testing · pinned to the source commit

# Run from your project root
git clone https://github.com/sickn33/agentic-awesome-skills.git .skillboard-tmp
git -C .skillboard-tmp checkout 5cf4dfeb13ea966daa1e117897689cd7991e3f44
mkdir -p ".claude/skills"
cp -r ".skillboard-tmp/plugins/agentic-awesome-skills-claude/skills/api-security-testing" ".claude/skills/"
rm -rf .skillboard-tmp

Review the source before running. This copies files into your project; it is not a one-click install and does not verify runtime safety.

New here? Step-by-step setup – from installing the agent to using the skill

Operating systemAgentI already use Claude Code

1
Install Git
Install Git with your package manager (Debian/Ubuntu shown; use dnf/pacman on others). Official download.
```
sudo apt update && sudo apt install -y git
```
2
Install Claude Code
Requires Node.js 18+. Install the CLI globally: Official docs. (command-line tool)
```
npm install -g @anthropic-ai/claude-code
```

Get the skill, pinned to its exact version

Open a terminal and run these steps (they clone the source, check out the exact commit, and copy the skill into place):

# Run from your project root
git clone https://github.com/sickn33/agentic-awesome-skills.git .skillboard-tmp
git -C .skillboard-tmp checkout 5cf4dfeb13ea966daa1e117897689cd7991e3f44
mkdir -p ".claude/skills"
cp -r ".skillboard-tmp/plugins/agentic-awesome-skills-claude/skills/api-security-testing" ".claude/skills/"
rm -rf .skillboard-tmp

Destination: .claude/skills/api-security-testing

4
Use it in Claude Code
Open Claude Code in your project. It reads skills from the folder above, so api-security-testing is now available. Always review the source before using it – static checks cannot prove runtime safety.

Security & Audits

Scanner static-checks@0.1.0 · commit 5cf4dfeb13ea. Static checks cannot prove runtime safety – review the source and the exact diff before installing. How checks work.

No static rules matched. This is not a safety guarantee.

api-security-testing

What this skill does

API Security Testing Workflow

Overview

When to Use This Workflow

Workflow Phases

Phase 1: API Discovery

Skills to Invoke

Actions

Copy-Paste Prompts

Phase 2: Authentication Testing

Skills to Invoke

Actions

Copy-Paste Prompts

Phase 3: Authorization Testing

Skills to Invoke

Actions

Copy-Paste Prompts

Phase 4: Input Validation

Skills to Invoke

Actions

Copy-Paste Prompts

Phase 5: Rate Limiting

Skills to Invoke

Actions

Copy-Paste Prompts

Phase 6: GraphQL Testing

Skills to Invoke

Actions

Copy-Paste Prompts

Phase 7: Error Handling

Skills to Invoke

Actions

Copy-Paste Prompts

API Security Checklist

Quality Gates

Related Workflow Bundles

Limitations

Installation

Install Git

Install Claude Code

Get the skill, pinned to its exact version

Use it in Claude Code

Security & Audits

api-security-testing

What this skill does

API Security Testing Workflow

Overview

When to Use This Workflow

Workflow Phases

Phase 1: API Discovery

Skills to Invoke

Actions

Copy-Paste Prompts

Phase 2: Authentication Testing

Skills to Invoke

Actions

Copy-Paste Prompts

Phase 3: Authorization Testing

Skills to Invoke

Actions

Copy-Paste Prompts

Phase 4: Input Validation

Skills to Invoke

Actions

Copy-Paste Prompts

Phase 5: Rate Limiting

Skills to Invoke

Actions

Copy-Paste Prompts

Phase 6: GraphQL Testing

Skills to Invoke

Actions

Copy-Paste Prompts

Phase 7: Error Handling

Skills to Invoke

Actions

Copy-Paste Prompts

API Security Checklist

Quality Gates