API Fuzzing Bug Bounty

Q: What is a Claude Code skill and how does the API Fuzzing Bug Bounty 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 Fuzzing Bug Bounty is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Security · Sub-category: appsec-tools · Last updated: 2026-05-21

Provide comprehensive techniques for testing REST, SOAP, and GraphQL APIs during bug bounty hunting and penetration testing engagements. Covers vulnerability discovery, authentication bypass, IDOR exploitation, and API-specific attack vectors.

About this skill (catalog notes)

API Fuzzing Bug Bounty includes worked examples; pricing or quota commentary; 22 code blocks for direct copy-paste. The SKILL.md runs to about 1,275 words, in the catalog's typical mid-range.

Source: sickn33.github.io/antigravity-awesome-skills
License: MIT
Original author: zebbern
Indexed lastmod: 2026-05-21
Catalog position: Security · appsec-tools
Indexed related skills: 10

How API Fuzzing Bug Bounty fits the catalog

API Fuzzing Bug Bounty sits in the Security category under the appsec-tools 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.

What this skill does

API Fuzzing Bug Bounty is a community-contributed Claude Code skill in the appsec-tools sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/api-fuzzing-bug-bounty/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The API Fuzzing Bug Bounty Claude Code skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. 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/api-fuzzing-bug-bounty
curl -L https://claudskills.com/skills/api-fuzzing-bug-bounty/SKILL.md \
  -o ~/.claude/skills/api-fuzzing-bug-bounty/SKILL.md

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

Skills live at ~/.claude/skills/api-fuzzing-bug-bounty/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\api-fuzzing-bug-bounty\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 Fuzzing Bug Bounty Claude Code skill?

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

What does the API Fuzzing Bug Bounty skill do?

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 Fuzzing Bug Bounty skill?

Use API Fuzzing Bug Bounty when your Claude Code task falls under the Security category — specifically in the appsec tools 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 Fuzzing Bug Bounty" or describe the task and let Claude pick). Browse related skills at /category/security/.

What is a Claude Code skill and how does the API Fuzzing Bug Bounty 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 Fuzzing Bug Bounty is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/sickn33/antigravity-awesome-skills/blob/28b770d04f82c4179a295ddd774eecf92123f41f/skills/api-fuzzing-bug-bounty/SKILL.md
License: MIT
Author: zebbern
Website: https://sickn33.github.io/antigravity-awesome-skills/

Cite this skill

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

APA

zebbern. (2026). API Fuzzing Bug Bounty [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/api-fuzzing-bug-bounty/

BibTeX

@misc{api-fuzzing-bug-bounty-2026,
  author    = {zebbern},
  title     = {API Fuzzing Bug Bounty [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/api-fuzzing-bug-bounty/}
}

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