Individual skill

performing-api-inventory-and-discovery

Performs API inventory and discovery to identify all API endpoints in an organization's environment including documented, undocumented, shadow, zombie, and deprecated APIs. The tester uses passive traffic analysis, active scanning, DNS enumeration, JavaScript analysis, and cloud resource inventory to build a comprehensive API catalog. Maps to OWASP API9:2023 Improper Inventory Management. Activates for requests involving API discovery, shadow API detection, API inventory audit, or attack surface mapping.

skills/performing-api-inventory-and-discovery/SKILL.md

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Last checked: Nov 9, 2026

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Repository stars (not skill ratings): 35,971
Repository last updated: Aug 31, 2026
License: Apache-2.0

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ai-agents Repository topic
claude-code Repository topic
cybersecurity Repository topic
incident-response Repository topic
mitre-attack Repository topic
penetration-testing Repository topic
red-team Repository topic
security Repository topic
cloud-security Repository topic
malware-analysis Repository topic
api-security Declared skill tag
owasp Declared skill tag
api-discovery Declared skill tag
shadow-api Declared skill tag
inventory Declared skill tag
attack-surface Declared skill tag
security Derived category
security-application Derived category

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SKILL.mdcore · 17,030 bytes
SKILL.mdcore · 17,030 bytes
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references/api-reference.mddoc · 2,212 bytes
scripts/agent.pyruns · 8,778 bytes

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# Performing API Inventory and Discovery

## When to Use

- Mapping the complete API attack surface of an organization before a security assessment
- Identifying shadow APIs deployed by development teams without security review
- Discovering deprecated or zombie API versions that remain accessible but unmaintained
- Finding undocumented API endpoints exposed through mobile applications, SPAs, or microservices
- Building an API inventory for compliance requirements (PCI-DSS, SOC2, GDPR)

**Do not use** without written authorization. API discovery involves scanning network infrastructure and analyzing traffic.

## Prerequisites

- Written authorization specifying the target domains and network ranges