API Builder

Quality score: 70/100 · Category: Engineering · Sub-category: backend

type:integration

Comprehensive API design and development workflow that orchestrates API architecture, endpoint design, documentation generation, and integration patterns. Handles everything from RESTful API creation and GraphQL schema design to API gateway setup and version management.

What this skill does

API Builder is a production-ready Claude Code skill (quality score 70/100) in the backend sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/api-builder/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The API Builder skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It is part of the open ClaudSkills registry, a community-curated catalog of 15,000+ capabilities you can install for Claude Code — the Claude CLI agent.

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/api-builder
curl -L https://claudskills.com/skills/api-builder/SKILL.md \
  -o ~/.claude/skills/api-builder/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/api-builder/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/api-builder/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\api-builder\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

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Part of ClaudSkills — the open registry for Claude Code skills. · What's New · Install guide · About · llms.txt

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