Shadow API Endpoint Detection

Shadow API Endpoint Detection is an Automation skill for Claude Code, published by xalgord in xalgorix.

852 stars151 forkson xalgord/xalgorixAdded 2026/07/20+1% in starsRepository updated 2026/08/04

ai-agentai-securityautomationautonomous-pentestingbug-bountycybersecurityethical-hackinggolangpenetration-testingpentestpentesting-toolsreconsecuritysecurity-researchsecurity-toolstypescriptvulnerability-detectionvulnerability-scanner

Install in seconds

Install Shadow API Endpoint Detection

Copy Shadow API Endpoint Detection into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/xalgorix/xalgorix/tree/main/internal/tools/skills/data/api-security/detecting-shadow-api-endpoints ~/.claude/skills/detecting-shadow-api-endpoints

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/xalgorix/xalgorix.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: internal/tools/skills/data/api-security/detecting-shadow-api-endpoints/SKILL.md in xalgord/xalgorix
Installs to: ~/.claude/skills/detecting-shadow-api-endpoints
Collection: One of 51 skills cataloged from this repository
Category: Automation — 2226 skills

What Shadow API Endpoint Detection does

Discovers and inventories shadow API endpoints that operate outside documented specifications using traffic analysis. Used when investigating security incidents, building detection rules, or validating coverage for hidden APIs.

Shadow API Endpoint Detection is cataloged under Automation on DirSkills. Shadow API Endpoint Detection comes from a repository tagged ai-agent, ai-security, automation, autonomous-pentesting and bug-bounty.

Documentation

README

Excerpt

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

This is the opening of the README. Read the full README on GitHub.

Commands Shadow API Endpoint Detection provides

Slash commands named in this skill’s SKILL.md, listed in the order they first appear.

/internal
/graphql
/actuator

Frequently asked about Shadow API Endpoint Detection

What else does xalgord publish alongside Shadow API Endpoint Detection?
Shadow API Endpoint Detection is one of 51 skills that DirSkills catalogs from xalgord/xalgorix, the repository it ships in. Its siblings there include AFL++ Fuzzing, AI Security Guardrails and AI-Assisted Vulnerability Discovery. Each one is a separate skill with its own page in this directory, installs the same way Shadow API Endpoint Detection does, and is maintained by xalgord in that same repository. The rest of the collection is listed on the xalgord/xalgorix page.
How does Shadow API Endpoint Detection compare to other Automation skills?
Shadow API Endpoint Detection ranks #964 by stars among the 2226 Automation skills in this catalog. The most-starred ones next to it are Autonomous Loops, Autonomous Agent Harness and Automation Audit Ops. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Shadow API Endpoint Detection against them. Open each page to compare what they document and how they install.