API Client is an agent skill from aiskillstore/marketplace. Use when setting up API clients - TanStack Query, Axios, JWT token management, error handling, or response parsing. NOT when plain fetch calls, non-API data handling, or unrelated UI logic. Triggers: "API client", "data fetching", "JWT token", "error handling", "paginated list", "TanStack Query".
Its SKILL.md is about 5.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `skill-report.json`).
It sits in Backend & APIs, covering Authentication and Error handling. It works with TanStack and Zod. The repository describes itself as: Security-audited skills for Claude, Codex & Claude Code. One-click install, quality verified.