What problem does it solve? Mobile app pentesters often stop at client-side findings, but the highest-impact bugs live on the backend API the app talks to. This Skill turns endpoints, tokens, and keys discovered in an APK into a prioritized, in-scope server-side test plan covering the OWASP API Security Top 10. ## Core Features & Use Cases - Target Discovery: Parses secrets.json (http_endpoint, firebase_db, s3_bucket, gcs_bucket categories) into a deduplicated, prioritized host list with per-host API Top 10 checklists and scope reminders. - 14-TTP Methodology: Step-by-step test guidance for IDOR/BOLA, broken auth, mass assignment, rate limiting, JWT flaws, GraphQL abuse, SSRF, XXE, file upload, and client-side-only premium gates. - Cross-Skill Chaining: Combines with apk-recon (hardcoded keys), local-auth-audit (client-side gates), and deeplink-audit (OAuth tokens) to build multi-step exploit chains. - Use Case: After bypassing SSL pinning on an authorized test app, intercept its traffic in Burp, then use the generated target list to test each API host for IDOR by swapping object IDs between two accounts. ## Quick Start Run the api-pivot target builder against my APK's secrets.json to list the backend hosts I should test for IDOR and broken access control.