This server does not currently have a deployable release on Glama. Follow the repository's setup instructions to install and configure it for your MCP client, including any required credentials and local dependencies.
A standalone Python MCP (Model Context Protocol) server that wraps Nuclei, enabling Claude Desktop to run real vulnerability scans through natural language.
Kannan Prabu Ramamoorthy & Swarup Natukula
Type this in Claude Desktop:
Run a nuclei scan on https://scanme.shExpected output — 19 findings in ~7 seconds:
[nuclei] 19 finding(s) on https://scanme.sh:
[INFO] OpenSSH Service - Detect | matched: scanme.sh:22 | template: openssh-detect
[INFO] SSH Server Software Enumeration | matched: scanme.sh:22 | template: ssh-server-enumeration
[INFO] SSH Password-based Authentication | matched: scanme.sh:22 | template: ssh-password-auth
[INFO] SSH SHA-1 HMAC Algorithms Enabled | matched: scanme.sh:22 | template: ssh-sha1-hmac-algo
[INFO] Deprecated TLS Detection | matched: scanme.sh:443 | template: deprecated-tls
[LOW] Weak Cipher Suites Detection | matched: scanme.sh:443 | template: weak-cipher-suites
[LOW] Self Signed SSL Certificate | matched: scanme.sh:443 | template: self-signed-ssl
[INFO] Mismatched SSL Certificate | matched: scanme.sh:443 | template: mismatched-ssl-certificate
[INFO] TLS Version - Detect | matched: scanme.sh:443 | template: tls-version
[INFO] CAA Record | matched: scanme.sh | template: caa-fingerprint
[INFO] NS Record Detection | matched: scanme.sh | template: nameserver-fingerprint
[INFO] AAAA Record - IPv6 Detection | matched: scanme.sh | template: aaaa-fingerprint
...Related MCP server: Kali Linux Security Tools MCP Server
Tool | Description | Speed |
| Full scan with severity + template tag filters | ~7s (fast tags) |
| Quick scan, fast defaults (ssl,ssh,dns) | ~7s |
| Browse templates by tag | instant |
macOS (Apple Silicon M1/M2/M3/M4) — tested on M4 Pro, macOS Tahoe
Python 3.8+
curl (pre-installed on macOS)
git clone https://github.com/kannanprabu/nuclei_mcp.git
cd nuclei_mcp
chmod +x setup.sh
./setup.shThe script will:
Install Nuclei binary (official arm64 binary — NOT brew)
Create Python venv and install MCP library
Print your exact Claude Desktop config to copy-paste
⚠️ Do NOT use
brew install nuclei— the Homebrew bottle crashes on Apple Silicon with a SIGSEGV/cgo bug. Use the official binary:
# Download official arm64 binary
curl -L https://github.com/projectdiscovery/nuclei/releases/download/v3.3.9/nuclei_3.3.9_macOS_arm64.zip -o /tmp/nuclei.zip
# Install
unzip /tmp/nuclei.zip -d /tmp/nuclei-bin/
chmod +x /tmp/nuclei-bin/nuclei
sudo mv /tmp/nuclei-bin/nuclei /usr/local/bin/nuclei
# Fix Gatekeeper if needed
xattr -d com.apple.quarantine /usr/local/bin/nuclei
# Verify
nuclei -version
# Update to latest + download templates
sudo nuclei -update
nuclei -update-templatesgit clone https://github.com/kannanprabu/nuclei_mcp.git
cd nuclei_mcp
python3 -m venv venv
source venv/bin/activate
pip install -r requirements.txtsource venv/bin/activate
which python3
# Example: /Users/yourname/nuclei_mcp/venv/bin/python3Edit ~/Library/Application Support/Claude/claude_desktop_config.json:
{
"mcpServers": {
"nuclei-scanner": {
"command": "/Users/yourname/nuclei_mcp/venv/bin/python3",
"args": ["/Users/yourname/nuclei_mcp/nuclei-server.py"]
}
}
}Replace /Users/yourname with your actual path from Step 3.
pkill -x "Claude"
open -a ClaudeIn Claude Desktop, type:
Run a nuclei scan on https://scanme.shYou should see 19 findings in ~7 seconds.
# Quick scan
Run a nuclei basic scan on https://scanme.sh
# Scan with all severities
Run a nuclei scan on https://scanme.sh
# Target specific vulnerability classes
Run a nuclei scan on https://scanme.sh with templates ssl,ssh,dns
# Browse templates
List nuclei templates for tag "ssh"
List nuclei templates for tag "cve"
# Scan your own authorized target
Run a nuclei scan on https://yourauthorizedtarget.comSIGSEGV: segmentation violation when running nucleiThis is the go-m1cpu cgo bug in Homebrew's nuclei bottle. Use the official binary from Step 1.
ModuleNotFoundError: No module named 'mcp'You're using system Python instead of the venv:
source venv/bin/activate
pip install -r requirements.txt
# Make sure config uses venv python pathValidate your JSON (no trailing commas)
Confirm python path in config matches which python3 inside the venv
Fully quit Claude Desktop with Cmd+Q, then reopen
Check logs: ~/Library/Logs/Claude/
The default ssl,ssh,dns tags finish in ~7 seconds. If you override with broader tags like misconfig or remove the tag filter, scans can take 3-4 minutes and will exceed Claude Desktop's MCP timeout. Stick to the fast tag set for demos.
# Verify nuclei works standalone
nuclei -target https://scanme.sh -tags ssl,ssh,dns -no-color
# Should return 19 findingsBsidesMCPDemo — main workshop repo with 7 pentest tools
Nuclei — ProjectDiscovery's vulnerability scanner
MCP Protocol — Model Context Protocol docs
scanme.sh — Official ProjectDiscovery scan-me target
MIT
Tested on macOS Tahoe, Apple Silicon M4 Pro, March 2026.
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
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