mcpcap
by danohn
- mcpcap
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Network Traffic Analysis
<span class="gradient-text">for LLMs</span>
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<p class="hero-description">
A stateless Python MCP Server providing protocol-specific tools for analyzing PCAP files. Tools accept local file paths or remote URLs as parameters - no file uploads, just specify the path or URL to your PCAP file.
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<span class="stat-number">4</span>
<span class="stat-label">Protocol Modules</span>
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<span class="stat-number">Python 3.10+</span>
<span class="stat-label">Requirements</span>
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<span class="stat-number">MIT</span>
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<h2 class="section-title">Key Features</h2>
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<h3 class="feature-title">Modular Architecture</h3>
<p class="feature-description">Easily extensible architecture allows adding new protocol analyzers without modifying core functionality.</p>
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<h3 class="feature-title">Local & Remote PCAP</h3>
<p class="feature-description">Support for both local PCAP files and remote HTTP sources with directory listing capabilities.</p>
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<h3 class="feature-title">Scapy Integration</h3>
<p class="feature-description">Leverages the powerful scapy library for comprehensive packet parsing and network analysis.</p>
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<h3 class="feature-title">MCP Protocol</h3>
<p class="feature-description">Seamless integration with Large Language Models through the Model Context Protocol.</p>
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<h3 class="feature-title">JSON Output</h3>
<p class="feature-description">Structured JSON responses make analysis results easy for LLMs to understand and process.</p>
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<h3 class="feature-title">Security Focus</h3>
<p class="feature-description">Built with security analysis in mind, providing insights into network traffic patterns and anomalies.</p>
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</section>
<section id="modules" class="modules">
<div class="container">
<h2 class="section-title">Protocol Modules</h2>
<div class="modules-grid">
<div class="module-card">
<div class="module-header">
<h3 class="module-title">DNS Module</h3>
<span class="module-badge">Active</span>
</div>
<p class="module-description">Comprehensive DNS packet analysis with query tracking, domain extraction, and response monitoring.</p>
<ul class="module-features">
<li>DNS query and response analysis</li>
<li>Domain and subdomain identification</li>
<li>Query type analysis (A, AAAA, MX, etc.)</li>
<li>DNS server identification</li>
</ul>
</div>
<div class="module-card">
<div class="module-header">
<h3 class="module-title">DHCP Module</h3>
<span class="module-badge">Active</span>
</div>
<p class="module-description">DHCP transaction monitoring with IP assignment tracking and configuration analysis.</p>
<ul class="module-features">
<li>DHCP transaction tracking</li>
<li>IP address lease monitoring</li>
<li>Client and server identification</li>
<li>Configuration option analysis</li>
</ul>
</div>
<div class="module-card">
<div class="module-header">
<h3 class="module-title">ICMP Module</h3>
<span class="module-badge">Active</span>
</div>
<p class="module-description">ICMP packet analysis for network diagnostics, connectivity testing, and error detection.</p>
<ul class="module-features">
<li>Ping request/reply analysis</li>
<li>Network connectivity testing</li>
<li>Traceroute path tracking</li>
<li>Error message detection</li>
</ul>
</div>
<div class="module-card">
<div class="module-header">
<h3 class="module-title">CapInfos Module</h3>
<span class="module-badge">Active</span>
</div>
<p class="module-description">PCAP file metadata and statistics analysis, similar to Wireshark's capinfos utility.</p>
<ul class="module-features">
<li>File information and size analysis</li>
<li>Packet statistics and counts</li>
<li>Data throughput calculations</li>
<li>Link layer encapsulation detection</li>
</ul>
</div>
<div class="module-card coming-soon">
<div class="module-header">
<h3 class="module-title">HTTP Module</h3>
<span class="module-badge">Coming Soon</span>
</div>
<p class="module-description">HTTP/HTTPS traffic analysis for web communication patterns and security assessment.</p>
<ul class="module-features">
<li>Request/response analysis</li>
<li>Header examination</li>
<li>Content type detection</li>
<li>Security header validation</li>
</ul>
</div>
</div>
</div>
</section>
<section id="quickstart" class="quickstart">
<div class="container">
<h2 class="section-title">Quick Start</h2>
<div class="quickstart-content">
<div class="quickstart-steps">
<div class="step">
<div class="step-number">1</div>
<div class="step-content">
<h3 class="step-title">Install mcpcap</h3>
<p class="step-description">Install using pip, uv, or uvx for one-time usage</p>
</div>
</div>
<div class="step">
<div class="step-number">2</div>
<div class="step-content">
<h3 class="step-title">Start the Server</h3>
<p class="step-description">Run mcpcap to start the MCP server</p>
</div>
</div>
<div class="step">
<div class="step-number">3</div>
<div class="step-content">
<h3 class="step-title">Connect & Analyze</h3>
<p class="step-description">Provide file paths or URLs to analyze PCAP files (no uploads)</p>
</div>
</div>
</div>
<div class="code-examples">
<div class="code-tabs">
<button class="code-tab active" data-tab="install">Install</button>
<button class="code-tab" data-tab="local">Local Files</button>
<button class="code-tab" data-tab="remote">Remote Files</button>
</div>
<div class="code-content">
<pre class="code-block active" id="install">
<code># Using pip
pip install mcpcap
# Using uv
uv add mcpcap
# One-time usage
uvx mcpcap</code>
</pre>
<pre class="code-block" id="local">
<code># Start MCP server
mcpcap
# Then use tools with local file PATHS (not uploads)
analyze_dns_packets("/path/to/capture.pcap")
analyze_dhcp_packets("/path/to/dhcp.pcap")
analyze_icmp_packets("/path/to/network.pcap")
analyze_capinfos("/path/to/capture.pcap")</code>
</pre>
<pre class="code-block" id="remote">
<code># Start MCP server
mcpcap
# Then use tools with remote URLs (not uploads)
analyze_dns_packets("https://example.com/capture.pcap")
analyze_dhcp_packets("https://example.com/dhcp.pcap")
analyze_icmp_packets("https://example.com/network.pcap")
analyze_capinfos("https://example.com/capture.pcap")</code>
</pre>
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<h2 class="cta-title">Ready to analyze your network traffic?</h2>
<p class="cta-description">Join developers using mcpcap to bring network analysis capabilities to their LLM applications.</p>
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