CyboruxCyborux API

MCP Server

Use Cyborux directly from Claude, Cursor, and other AI assistants via the Model Context Protocol.

The Cyborux MCP server connects your AI assistant to the Cyborux API using the Model Context Protocol (MCP) — an open standard that lets LLMs call external tools securely. Instead of copying data between apps, you ask questions in natural language and the AI calls the right Cyborux endpoints automatically.

What You Can Do

With the Cyborux MCP integration you can ask your AI assistant to:

  • Assess domain security"What's the risk score for example.com? What are the main concerns?"
  • Investigate email breaches"Which emails on example.com have been in data breaches? Show me breach details for the most exposed one."
  • Audit subdomains"List all active subdomains sorted by risk. Are any vulnerable to takeover?"
  • Find exposed people"Who are the most exposed people at example.com? What data has been leaked about the CEO?"
  • Search across everything"Search for 'john' across all data we have on example.com"
  • Generate reports"Generate a PDF security report for example.com"
  • Schedule vulnerability scans"Schedule a deep scan for blog.example.com"

Setup

Install Node.js

The Cyborux MCP server runs on Node.js. Make sure npm is available in your terminal:

node --version

If not installed, download it from nodejs.org (LTS recommended).

Get Your API Key

Sign in at cyborux.com and go to API Tokens. Create a new token — it starts with cbrx_. Copy it immediately; it's only shown once.

Configure Claude Desktop

Open Claude Desktop settings and go to DeveloperEdit Config:

Claude Desktop MCP Config

This will open the folder containing claude_desktop_config.json. Open this file with your favourite editor:

~/Library/Application Support/Claude/claude_desktop_config.json
%APPDATA%\Claude\claude_desktop_config.json

Add the Cyborux MCP server:

{
  "mcpServers": {
    "cyborux": {
      "command": "npx",
      "args": ["-y", "@cyborux/mcp-server"],
      "env": {
        "CYBORUX_API_KEY": "cbrx_your_token_here"
      }
    }
  }
}

Replace cbrx_your_token_here with the API token you created in step 2.

Restart Claude Desktop

Close and reopen Claude Desktop. The Cyborux integration will be available immediately — look for the hammer icon with 22 tools.

Verify

Ask Claude:

"List my domains on Cyborux"

It should call the list_domains tool and return your monitored domains.

Other Clients

claude mcp add cyborux \
  -e CYBORUX_API_KEY=cbrx_your_token_here \
  -- npx -y @cyborux/mcp-server

Open Settings → MCP Servers and add:

{
  "mcpServers": {
    "cyborux": {
      "command": "npx",
      "args": ["-y", "@cyborux/mcp-server"],
      "env": {
        "CYBORUX_API_KEY": "cbrx_your_token_here"
      }
    }
  }
}

Available Tools

Domain Analysis

ToolDescription
list_domainsList all monitored domains with risk scores and status
analyze_domainStart a new OSINT analysis for a domain
domain_summaryRisk score, security metrics, WHOIS/DNS, and analysis progress
search_domainSearch across all entity types in a single query

Discovered Assets

ToolDescription
list_emailsEmail addresses with breach counts and leak status
email_breachesBreach timeline for a specific email
list_peoplePeople profiles with linked entity counts
person_detailsFull person detail with emails, files, and usernames
list_filesDiscovered files with extracted metadata
list_subdomainsSubdomains with active status and takeover risk
subdomain_detailsTechnologies and vulnerabilities for a subdomain
list_usernamesSocial media usernames with platform profiles

Infrastructure

ToolDescription
list_infrastructureInternal IPs, server names, and printer paths leaked in documents
list_related_domainsRelated domains discovered through OSINT linkage

Deep Scans

ToolDescription
list_deep_scansVulnerability scan history and results
schedule_deep_scanSchedule a new WordPress vulnerability scan

Domain Ownership

ToolDescription
initiate_ownershipStart DNS or HTML file verification
ownership_statusCheck verification progress
verify_ownershipTrigger the verification check

Reports & Account

ToolDescription
generate_domain_reportGenerate a PDF analysis report
generate_deep_scan_reportGenerate a PDF vulnerability scan report
subscription_statusCurrent plan, usage, and credit balances

Environment Variables

VariableRequiredDescription
CYBORUX_API_KEYYesYour API token (starts with cbrx_)

Troubleshooting

Tools not appearing? Make sure you restarted the client after editing the config. Check that npx is available in your PATH by running npx --version in your terminal.

Authentication errors? Verify your CYBORUX_API_KEY starts with cbrx_ and that your subscription is active.

"Domain not found" errors? You need to run an analysis on a domain before querying it. Use the analyze_domain tool first.

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