mcpbeat

Pentest MCP Server

io.github.cyanheads/pentest-mcp-server
answering

Pentest MCP Server is answering right now. Last checked 12 min ago. 87 installs a week from npm. It exposes 7 tools. Last commit 30 Jul 2026.

Offline methodology engine for authorized penetration testing, CTF, and security research.

Installs per day peak 45 · avg 14 · +24% w/w
a month agotoday
Uptime history 41 hours of history · worst hour 75%
41 hours agonow
100.0%
Uptime 24h
91 of 91 checks
7
Tools
read from the server
364 ms
Response time
average over 24h
87
Installs / week
npm and PyPI

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 12 min ago.

run in your terminal
claude mcp add pentest-mcp-server --transport http https://pentest.caseyjhand.com/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "pentest-mcp-server": {
      "url": "https://pentest.caseyjhand.com/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.pentest-mcp-server]
url = "https://pentest.caseyjhand.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "pentest-mcp-server": {
      "url": "https://pentest.caseyjhand.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "pentest-mcp-server": {
      "url": "https://pentest.caseyjhand.com/mcp"
    }
  }
}

Available tools 7

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

pentest
pentest_analyze_response
Analyze a server response from authorized probing for information leakage, fingerprinting signals, and exploitation opportunities scoped to the authorized engagement. Accepts raw HTTP response headers and body (paste from Burp, curl, or any HTTP client) and returns structured findings grouped by category. Each finding includes: what was detected, why it matters for an authorized tester, how a defender detects misuse, and recommended remediation. Identifies version disclosures, stack traces, debug headers, internal paths, JWT/cookie patterns, CORS misconfigurations, and other common leakage patterns. Use as the bridge between recon/probing output and the methodology and payload tools.
pentest_encode
Transform a payload string through one or more encoding layers for bypass research during authorized testing. Accepts a chain of encodings applied in order (e.g., ["unicode", "url", "base64"] applies Unicode → URL-encode → base64). Returns the transformed payload with a step-by-step decoding explanation: how a WAF or server would decode each layer, and why the combined encoding might bypass a specific filter. Use to understand filter bypass mechanics in an authorized engagement and to confirm that a target's decoding pipeline matches an expected bypass path. Payloads are transformed mathematically — no live probing occurs.
pentest_generate_payloads
Generate payload templates for authorized testing against systems the tester owns or is permitted to test. Payloads are annotated templates — each includes why it works in the specified context, what vulnerability class it tests, detection signatures that WAF/IDS products might fire, and recommended mitigations. Context-awareness is core: an XSS payload for an HTML attribute differs entirely from one for a JS template literal, and both differ from a DOM-based sink. When a WAF profile is specified, bypass variants reference known public research for that WAF product. All payloads are illustrative templates for authorized testing only.
pentest_guide
Return a structured attack methodology playbook for the given attack vector and optional target context, for use in authorized penetration testing, CTF, or security research. Covers reconnaissance, enumeration, exploitation, and post-exploitation phases for the vector, filtered to what is relevant given the provided stack and WAF profile. Each phase includes: what to look for, tools to use, common mistakes, detection indicators that would alert defenders, and recommended mitigations. Next-tool suggestions are pre-filled with payload generator and technique lookup calls. Covers 15 vectors via the vector enum. Authorized testing only.
pentest_lookup_group
Look up a MITRE ATT&CK threat group (intrusion set) or software entry by name or ID for authorized penetration testing and threat intelligence. Returns the group or software record: ATT&CK ID, display name, known aliases, type (group vs. software), description, and the techniques it uses with procedure-level context from public ATT&CK reporting. Accepts exact ATT&CK IDs (G0007 for threat groups, S0002 for software) or keyword/name search (e.g., "APT28", "Mimikatz", "Lazarus Group"). Equally useful for defenders building detection coverage around specific adversary tradecraft.
pentest_lookup_technique
Look up a MITRE ATT&CK technique by ID or keyword for authorized penetration testing and security research. Returns the full technique record: name, associated tactics, description, detection opportunities (log sources, behavioral indicators), real-world procedure examples from public reporting, recommended mitigations, and related sub-techniques. The detection and mitigation sections make this equally useful for defenders building detection coverage. Accepts exact IDs (T1190, T1059.001) or keyword search (e.g., "sql injection", "pass the hash", "web shell upload").
pentest_map_techniques
Given a profile of the authorized test target (technology stack, exposed services, authentication type, OS), return a ranked list of ATT&CK techniques and OWASP test cases most relevant to that profile — not a generic dump of all techniques. Ranking factors: platform match, service match, auth type exposure, technique prevalence. Each result includes why it is relevant to this specific profile, the detection opportunity, and the recommended mitigation. Use when starting an authorized engagement to prioritize the testing scope; pair with pentest_guide to get the full methodology for each top-ranked vector.

Endpoints

URLTransportStateLatencyChecked
https://pentest.caseyjhand.com/mcp streamable-http answering 480 ms 12 min ago

Pentest MCP Server — questions

Answers built from our own checks of this server.

What can Pentest MCP Server do?
It exposes 7 tools, read directly from the server on our last check. Among them: pentest_analyze_response, pentest_encode, pentest_generate_payloads, pentest_guide, pentest_lookup_group, pentest_lookup_technique and 1 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Pentest MCP Server working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 364 ms. The bar chart above shows every period we have measured.
How do I connect Pentest MCP Server?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Pentest MCP Server need an API key?
No. Pentest MCP Server completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 7 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Pentest MCP Server?
It answers our handshake in 364 ms on average, which is faster than 38% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
How many people use Pentest MCP Server?
The npm package @cyanheads/pentest-mcp-server was installed 87 times in the last week. Week over week that is +24%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Pentest MCP Server open source?
Yes — it is published under the Apache-2.0 licence, written in TypeScript, 1 stars on GitHub and 7 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.