Api Security Testing
"API security testing workflow for REST and GraphQL APIs covering authentication, authorization, rate limiting, input validation, and security best practices."
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What's inside this skill
Component source
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 fuzzingscanning-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 endpointsPhase 2: Authentication Testing
Skills to Invoke
broken-authentication- Auth testingapi-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 authenticationPhase 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 authorizationPhase 4: Input Validation
Skills to Invoke
api-fuzzing-bug-bounty- API fuzzingsql-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 parametersPhase 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 limitingPhase 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 securityPhase 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 handlingAPI 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 auditingweb-security-testing- Web securityapi-development- API development
Related Claude Code Skills
Vulnerability Scanner
Advanced vulnerability analysis principles. OWASP 2025, Supply Chain Security, attack surface mapping, risk prioritization.
Api Security Best Practices
"Implement secure API design patterns including authentication, authorization, input validation, rate limiting, and protection against common API vulnerabilities"
Security Best Practices
"Perform language and framework specific security best-practice reviews and suggest improvements. Trigger only when the user explicitly requests security best practices guidance, a security review/report, or secure-by-default coding help. Trigger only for supported languages (python, javascript/typescript, go). Do not trigger for general code review, debugging, or non-security tasks."
Top Web Vulnerabilities
This skill should be used when the user asks to "identify web application vulnerabilities", "explain common security flaws", "understand vulnerability categories", "learn about injection attacks", "review access control weaknesses", "analyze API security issues", "assess security misconfigurations", "understand client-side vulnerabilities", "examine mobile and IoT security flaws", or "reference the OWASP-aligned vulnerability taxonomy". Use this skill to provide comprehensive vulnerability definitions, root causes, impacts, and mitigation strategies across all major web security categories.
Sql Injection Testing
This skill should be used when the user asks to "test for SQL injection vulnerabilities", "perform SQLi attacks", "bypass authentication using SQL injection", "extract database information through injection", "detect SQL injection flaws", or "exploit database query vulnerabilities". It provides comprehensive techniques for identifying, exploiting, and understanding SQL injection attack vectors across different database systems.
Security Audit
"Comprehensive security auditing workflow covering web application testing, API security, penetration testing, vulnerability scanning, and security hardening."
Catalog data and component content are sourced from the open-source davila7/claude-code-templates project (MIT license). ToolZip curates the listing and writes original descriptions; every component links back to its original source. Claude Code is a product of Anthropic. ToolZip is an independent catalog and is not affiliated with or endorsed by Anthropic.