WhisperGraph MCP
Open-source, self-hostable MCP server for WhisperGraph — a graph of 7.39B nodes / 39B edges mapping DNS, BGP, GeoIP, WHOIS, and threat intelligence. Six read-only tools (Cypher query + schema introspection + threat assessment), six resources, eight investigation prompts. stdio and Streamable HTTP transports.
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Overview
WhisperGraph is an MCP server backed by the world's largest internet-infrastructure graph database - 46 billion nodes and edges across 20 entity types, mapping every domain, IP, ASN, prefix, organization, Web link and threat-intelligence listing into a single Cypher-queryable graph. Used by security teams, incident responders, and AI agents for investigation, attribution, brand protection, and infrastructure forensics. - Programmatic signup in 2 HTTP calls. No browser, no CAPTCHA, no human-in-the-loop. Email verification only. Working API key in ~5 seconds. - Free trial for everyone, including agents. Paid tiers for higher quotas.
Installation
docker run -p 8080:8080 -e MCP_TRANSPORT=http \
Configuration
{
"mcpServers": {
"whisper": {
"url": "https://mcp.whisper.security",
"headers": {
"Authorization": "Bearer <your_api_key>"
}
}
}
}Capabilities
- Query the internet infrastructure graph
run Cypher queries across 46B DNS, IP, ASN, BGP, WHOIS, and web-link nodes with `query`.
- Explore available data types
list all node labels and their counts with `list_labels`, or inspect a label’s properties with `describe_label`.
- Assess threat posture of an indicator
get a threat score, level, and contributing factors for an IP, hostname, CIDR, or ASN using `explain_indicator`.
- Run pre-built investigation recipes
execute catalog recipes like `assess`, `identify`, or `attack-path` via `run_recipe` without writing Cypher.
- Retrieve historical WHOIS or BGP data
look up past registration or routing records for an indicator with `whisper_history`.
- Discover typosquatting domains
find brand-protection variants of a domain checked against the live graph using `domain_variants`.
Tags
- threat-intelligence
- security
- knowledge-graph
- network-automation
- data-analysis
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