MCP server for GreyNoise API - Check if IPs are internet background noise or targeted attacks
Connect Runs on your machine
claude mcp add greynoise -e GREYNOISE_API_KEY=<GREYNOISE_API_KEY> -- npx -y [email protected]
{
"mcpServers": {
"greynoise": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"GREYNOISE_API_KEY": "<GREYNOISE_API_KEY>"
}
}
}
}
{
"mcpServers": {
"greynoise": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"GREYNOISE_API_KEY": "<GREYNOISE_API_KEY>"
}
}
}
}
{
"servers": {
"greynoise": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"GREYNOISE_API_KEY": "<GREYNOISE_API_KEY>"
}
}
}
}
Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
GREYNOISE_API_KEYRequired, secret | GreyNoise API key (free Community tier: 50 req/day) |
Details
| Package | [email protected] (NPM, stdio) |
| First published | 28 Feb 2026 |
| Last updated | 28 Feb 2026 |
| Registry name | io.github.nickjlucker/greynoise |
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