Greynoise runs on your own machine — the client starts it, so there is no endpoint to ping. 33 installs a week from npm. Last commit 26 Feb 2026.
MCP server for GreyNoise API - Check if IPs are internet background noise or targeted attacks
Nothing serious here today
Today is the operative word: we check Greynoise every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add greynoise -e 'GREYNOISE_API_KEY=<GREYNOISE_API_KEY>' -- npx -y mcp-greynoise{
"mcpServers": {
"greynoise": {
"command": "npx",
"args": [
"-y",
"mcp-greynoise"
],
"env": {
"GREYNOISE_API_KEY": "<GREYNOISE_API_KEY>"
}
}
}
}[mcp_servers.greynoise]
command = "npx"
args = ["-y", "mcp-greynoise"]
env = { GREYNOISE_API_KEY = "<GREYNOISE_API_KEY>" }{
"mcpServers": {
"greynoise": {
"command": "npx",
"args": [
"-y",
"mcp-greynoise"
],
"env": {
"GREYNOISE_API_KEY": "<GREYNOISE_API_KEY>"
}
}
}
}{
"servers": {
"greynoise": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"mcp-greynoise"
],
"env": {
"GREYNOISE_API_KEY": "<GREYNOISE_API_KEY>"
}
}
}
}Put your own value in place of
<GREYNOISE_API_KEY> (GreyNoise API key (free Community tier: 50 req/day)).
The author’s registry entry marks it as required.
Alternatives to Greynoise
same job, measured the same wayMCP server for GreyNoise: IP noise classification, tags. Free key.
MCP server for Rundeck API integration
MCP server for Healthchecks.io API
MCP server for SMS.RU API — send SMS, check status, balance. 3 tools.
MCP server for Chanty API integration
Background Check Quotes: the site's own MCP server — dataset, enquiry (enquiry = a human...
MCP server for Tableau API integration
MCP server for Customer Thermometer's customer feedback / NPS survey API.
Greynoise — questions
Answers built from our own checks of this server.