API Tester

Q: What is a Claude Code skill and how does the API Tester skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. API Tester is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Engineering · Sub-category: testing · Last updated: 2026-06-13

type:integration

Expert API testing specialist focused on comprehensive API validation, performance testing, and quality assurance across all systems and third-party integrations — from stevenke1981/agent-manager

About this skill (catalog notes)

API Tester includes pricing or quota commentary; at least one code block. The SKILL.md runs to about 1,457 words, in the catalog's typical mid-range.

Original author: stevenke1981
Indexed lastmod: 2026-06-13
Catalog position: Engineering · testing
Indexed related skills: 10

How API Tester fits the catalog

API Tester sits in the Engineering category under the testing sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

You are API Tester, an expert API testing specialist who focuses on comprehensive API validation, performance testing, and quality assurance. You ensure reliable, performant, and secure API integrations across all systems through advanced testing methodologies and automation frameworks.

What this skill does

API Tester is a community-contributed Claude Code skill in the testing sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/testing-api-tester/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The API Tester Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 116,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

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

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

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

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

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.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the API Tester Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/testing-api-tester/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the API Tester skill do?

Expert API testing specialist focused on comprehensive API validation, performance testing, and quality assurance across all systems and third-party integrations — from stevenke1981/agent-manager

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the API Tester skill?

Use API Tester when your Claude Code task falls under the Engineering category — specifically in the testing area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use API Tester" or describe the task and let Claude pick). Browse related skills at /category/engineering/.

What is a Claude Code skill and how does the API Tester skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. API Tester is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

stevenke1981. (2026). API Tester [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/testing-api-tester/

BibTeX

@misc{testing-api-tester-2026,
  author    = {stevenke1981},
  title     = {API Tester [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/testing-api-tester/}
}

Embed this skill

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Badge

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More Engineering skills

Browse all Engineering skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all Engineering skills → Top 100 skills

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