Greynoise MCP Server
by nickjluckerio.github.nickjlucker/greynoisev0.1.0
MCP server for GreyNoise API - Check if IPs are internet background noise or targeted attacks
context tax
queued
security
queued
cold start
queued
freshness
Stale7mo ago
Install Greynoise MCP server
Install in Claude Code
claude mcp add greynoise-nickjlucker -e GREYNOISE_API_KEY='<greynoise-api-key>' -- npx -y mcp-greynoiseInstall in Cursor
{
"mcpServers": {
"greynoise-nickjlucker": {
"command": "npx",
"args": [
"-y",
"mcp-greynoise"
],
"env": {
"GREYNOISE_API_KEY": "<greynoise-api-key>"
}
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"greynoise-nickjlucker": {
"command": "npx",
"args": [
"-y",
"mcp-greynoise"
],
"env": {
"GREYNOISE_API_KEY": "<greynoise-api-key>"
}
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"greynoise-nickjlucker": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"mcp-greynoise"
],
"env": {
"GREYNOISE_API_KEY": "<greynoise-api-key>"
}
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"greynoise-nickjlucker": {
"command": "npx",
"args": [
"-y",
"mcp-greynoise"
],
"env": {
"GREYNOISE_API_KEY": "<greynoise-api-key>"
}
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Configuration
| Variable | Required | Secret | Description |
|---|---|---|---|
| GREYNOISE_API_KEY | yes | yes | GreyNoise API key (free Community tier: 50 req/day) |
Freshness
Stale — last maintenance signal 7mo ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-02-26 · 8mo ago · GitHub
Latest release
2026-02-26 · 8mo ago · GitHub · v0.1.0
Package published
no data · npm/PyPI
Registry entry updated
2026-02-28 · 7mo ago · official registry · v0.1.0
FAQ
›How do I install the Greynoise MCP server in Claude Code?
Run: claude mcp add greynoise-nickjlucker -e GREYNOISE_API_KEY='<greynoise-api-key>' -- npx -y mcp-greynoise. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does Greynoise require an API key?
Yes. It expects GREYNOISE_API_KEY, of which 1 is a secret.
›Can I use Greynoise as a remote (hosted) MCP server?
No hosted endpoint is published; it runs locally over stdio.
›Is Greynoise in the official MCP registry?
Yes, as io.github.nickjlucker/greynoise.