Individual skill
detecting-shadow-api-endpoints
Discover and inventory shadow API endpoints that operate outside documented OpenAPI/Swagger specs, using traffic analysis against API gateways (Kong, AWS API Gateway, Envoy), cloud configuration scanning, and source code repository mining for undocumented routes. Use when assessing API attack surface, auditing for forgotten test environments or deprecated API versions still running, or building an API registration governance policy.
skills/detecting-shadow-api-endpoints/SKILL.md
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- Last checked
- Nov 9, 2026
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- 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
- shadow-apis Declared skill tag
- api-discovery Declared skill tag
- undocumented-apis Declared skill tag
- zombie-apis Declared skill tag
- api-inventory Declared skill tag
- attack-surface-management Declared skill tag
- api-governance Declared skill tag
- security Derived category
- testing Derived category
- docs Derived category
- docs-api Derived category
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# Detecting Shadow API Endpoints
## Overview
Shadow APIs are API endpoints operating within an organization's environment that are not tracked, documented, or secured. They emerge from rapid development cycles, forgotten test environments, deprecated API versions left running, third-party integrations, or developer side projects deployed without governance. Shadow APIs bypass authentication and monitoring controls, creating hidden entry points for attackers. Studies show that up to 30% of API endpoints in large organizations are undocumented, making shadow API detection a critical component of API security posture management.
## When to Use
- When investigating security incidents that require detecting shadow api endpoints
- When building detection rules or threat hunting queries for this domain
- When SOC analysts need structured procedures for this analysis type
- When validating security monitoring coverage for related attack techniques
