Design REST and GraphQL APIs: naming, versioning, error shapes, auth. Use when "design an API", "create endpoints", "REST vs GraphQL", or "API contract".
Install
npx skills add kensaurus/skills --skill design-apinpx skills add kensaurus/skills --skill design-api -a claude-code -gnpx skills add kensaurus/skills --skill design-api -a codex -ggemini skills install https://github.com/kensaurus/skills.git --path skills/design-apigh skill install kensaurus/skills design-apigit clone --depth 1 https://github.com/kensaurus/skills /tmp/kensaurus__skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/kensaurus__skills/skills/design-api ~/.claude/skills/design-api # Claude Code
cp -R /tmp/kensaurus__skills/skills/design-api ~/.agents/skills/design-api # Codex, Cursor, Gemini CLI, Copilot, OpenCode