Maskbreak MCP server (npm @sentinelsup/mcp): look up an IP against Tor exit lists and cloud-hosting ranges from Claude, Cursor and other MCP clients.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add maskbreak --env MASKBREAK_API_KEY='<MASKBREAK_API_KEY>' -- npx -y @sentinelsup/mcp~/.codex/config.toml
[mcp_servers.maskbreak]
command = "npx"
args = ["-y", "@sentinelsup/mcp"]
env = { MASKBREAK_API_KEY = "<MASKBREAK_API_KEY>" }
# codex mcp add maskbreak --env MASKBREAK_API_KEY='<MASKBREAK_API_KEY>' -- npx -y @sentinelsup/mcp~/.cursor/mcp.json
{
"mcpServers": {
"maskbreak": {
"command": "npx",
"args": [
"-y",
"@sentinelsup/mcp"
],
"env": {
"MASKBREAK_API_KEY": "<MASKBREAK_API_KEY>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"maskbreak": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@sentinelsup/mcp"
],
"env": {
"MASKBREAK_API_KEY": "<MASKBREAK_API_KEY>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"maskbreak": {
"command": "npx",
"args": [
"-y",
"@sentinelsup/mcp"
],
"env": {
"MASKBREAK_API_KEY": "<MASKBREAK_API_KEY>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"maskbreak": {
"command": "npx",
"args": [
"-y",
"@sentinelsup/mcp"
],
"env": {
"MASKBREAK_API_KEY": "<MASKBREAK_API_KEY>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"maskbreak": {
"command": "npx",
"args": [
"-y",
"@sentinelsup/mcp"
],
"env": {
"MASKBREAK_API_KEY": "<MASKBREAK_API_KEY>"
}
}
}
}Environment variables
MASKBREAK_API_KEY
Replace the placeholders with your own credentials and keep them out of version control.