api-13-ssrf

api-13-ssrf is a skill for Claude Code, Codex from vigilantshield/Claude-HunterKit. It costs 73 tokens per session (7,833 once invoked), scanned D, original, no licence file.

A testing checklist for finding Server-Side Request Forgery (SSRF), a web security flaw that can make a server send requests chosen by an attacker.

In plain words
What is it for?
It is for testing web applications for SSRF, checking cloud metadata services, and investigating whether SSRF can lead to more serious access.
Why use it?
It gives testers a structured way to check common SSRF cases, including requests that produce no visible response and attempts to evade filters.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/vigilantshield/claude-hunterkit/api-13-ssrf
Any agent
npx skills add vigilantshield/Claude-HunterKit --skill api-13-ssrf
Clone the repo
git clone --depth 1 https://github.com/vigilantshield/Claude-HunterKit

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for api-13-ssrf

README.md
[![agentmods](https://agentmods.dev/badge/skills/vigilantshield/claude-hunterkit/api-13-ssrf.svg)](https://agentmods.dev/skills/vigilantshield/claude-hunterkit/api-13-ssrf)
Your own site
<a href="https://agentmods.dev/skills/vigilantshield/claude-hunterkit/api-13-ssrf"><img src="https://agentmods.dev/badge/skills/vigilantshield/claude-hunterkit/api-13-ssrf.svg" alt="Measured on agentmods" height="20"></a>
Per session 73 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 7,833 The whole file, excluding the scripts and references it only reads on demand.
Security scan D 3 findings. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00073 $0.07833
Opus 5 $0.00036 $0.03916
Sonnet 5 $0.00015 $0.01567
Haiku 4.5 $0.00007 $0.00783

Measured 5d ago against content hash 0cd5e238e97c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade D, and why

api-13-ssrf scanned grade D with 3 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Sends data to an external URLmediumData exfiltration

A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.

curl http://127.0.0.1:10250/run/<namespace>/<pod>/<container> -d "cmd=id" # Execute commands

Cloud metadata endpointhighServer-side request forgery

One request to 169.254.169.254 can return temporary IAM credentials.

http://169.254.169.254/ (cloud metadata)

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -s "https://target.com/api?url=http://localhost:$port" -o /dev/null
skills/api/api-13-ssrf/SKILL.md · 888 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 888 lines · 73 tokens per session scan D 0cd5e238e97c

Subscribe to this mod's changes

api-13-ssrf is a skill published in the GitHub repository vigilantshield/Claude-HunterKit (5 stars, last pushed 1mo ago), with no licence file. It adds 73 tokens to every session and 7,833 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it D with 3 findings (sends data to an external url, cloud metadata endpoint, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Related

Other skills, from other repositories

pwnote-engagement-file

Create or validate a pwnote engagement import/export JSON file. Use when the user wants to generate, edit, or verify a pwnote engagement file for data transfer between pwnote instances. The file bundles an entire pentest engagement — metadata, notebook documents, code/host/credential blocks, findings with…

Pwnote/skills · 113 tokens

pwnote-cve-research

Use whenever the user is doing vulnerability research aimed at a CVE/advisory — tracking a responsible disclosure timeline, drafting a vendor notification, requesting a CVE ID from MITRE or a CNA, writing a public security advisory, or mapping a finding to a CWE. Trigger on "CVE", "CNA", "MITRE", "advisory"…

Pwnote/skills · 107 tokens

pwnote-hackthebox

Use whenever the user is working a HackTheBox (HTB) machine or challenge — structuring recon/foothold/privesc notes, building an enumeration checklist, tracking a multi-hop attack path, or writing a writeup (respecting HTB's retirement rules before publishing). Trigger on "HTB", "HackTheBox box", "pwn this machine"…

Pwnote/skills · 97 tokens

pwnote-offsec-osai

Use whenever the user is working on Offsec's OSAI / AI Red Teaming certification track, or on AI/LLM/agentic security engagements generally — prompt injection findings, tool-use abuse, agent trajectory documentation, or writing up AI-specific security findings that don't map cleanly to traditional CVSS. Trigger on…

Pwnote/skills · 108 tokens

pwnote-offsec-pen200

Use whenever the user is working on Offsec's PEN-200 course/OSCP — PWK lab notes, exam report drafting, screenshot/evidence discipline, or exam flag handling. Trigger on "OSCP", "PEN-200", "PWK", "OSCP exam report", or "proof.txt", even without the word "skill".

Pwnote/skills · 80 tokens

pwnote-offsec-web300

Use whenever the user is working on Offsec's WEB-300 course/OSWE — whitebox source code review methodology, exploit chain documentation, PoC scripting, or OSWE exam report writing. Trigger on "OSWE", "WEB-300", "whitebox", "source code review" in a pentest context, or "exploit chain", even without the word "skill".

Pwnote/skills · 87 tokens