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Maskbreak

Registre officiel Cloud et DevOps

Public IP signals (cloud hosting, Tor exits) and Maskbreak API status for fraud checks.

Code source Site web Documentation

Installation

Ajoutez ceci à la configuration MCP de votre client (Claude Desktop : claude_desktop_config.json ; Cursor : .cursor/mcp.json ; VS Code et les autres utilisent la même forme « mcpServers »).

NPM package @sentinelsup/mcp
Claude Code 
claude mcp add maskbreak -e 'MASKBREAK_API_KEY=<your maskbreak_api_key>' -e 'SENTINEL_BASE_URL=https://maskbreak.com' -- npx -y @sentinelsup/mcp@0.1.8
Configuration JSON (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "maskbreak": {
            "command": "npx",
            "args": [
                "-y",
                "@sentinelsup/mcp@0.1.8"
            ],
            "env": {
                "MASKBREAK_API_KEY": "<your maskbreak_api_key>",
                "SENTINEL_BASE_URL": "https://maskbreak.com"
            }
        }
    }
}

Variables d'environnement

  • MASKBREAK_API_KEY secret Maskbreak API key for your plan's lookup allowance (100,000 a month on the Free plan). Without it, lookups use the rate-limited keyless endpoint. The older SENTINEL_API_KEY name is still read.
  • SENTINEL_BASE_URL API base URL override, for testing.

Documentation

Tirée du README du projet sur GitHub, actualisée chaque semaine. Les liens ouvrent GitHub.

Sommaire
  1. Maskbreak MCP Server
  2. Tools
  3. Setup
  4. Example
  5. Environment
  6. Failures and local checks
  7. Links

Maskbreak MCP Server

Look up limited public IP intelligence — cloud-hosting ranges and Tor exit nodes — from Claude, Cursor, or another MCP client. Powered by the Maskbreak fraud detection API. Requires Node.js 18+ for the local server.

Tools

ToolWhat it does
lookup_ipPublic IPv4/IPv6 lookup: known, allow / review / block, risk score, and nullable signal/network metadata. Public-feed coverage is limited to cloud hosting and Tor.
service_statusMaskbreak API health, uptime, and latency

Setup

Grab a free API key at maskbreak.com/signup (the Free plan includes 100,000 IP lookups a month, no card; paid plans from €29 a month raise it). Keyless mode uses the free web-tool endpoint, limited to 12 lookups/minute and 80/day per caller IP. Additional endpoint and abuse-protection limits can apply.

Neither mode performs a browser visit. VPN/proxy and device evidence require a browser-SDK-backed /v1/evaluate request outside these tools; service names are available only when known. Unknown IPs, false signals and allow verdicts are not proof of safety.

Claude Code
claude mcp add sentinel -e MASKBREAK_API_KEY=sk_live_your_key -- npx -y @sentinelsup/mcp
Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "sentinel": {
      "command": "npx",
      "args": ["-y", "@sentinelsup/mcp"],
      "env": { "MASKBREAK_API_KEY": "sk_live_your_key" }
    }
  }
}
Cursor / other MCP clients

Any client that speaks stdio MCP works the same way: command npx, args ["-y", "@sentinelsup/mcp"], env MASKBREAK_API_KEY.

Hosted endpoint (no install)

Prefer a remote server? The same tools are hosted at https://maskbreak.com/mcp (Streamable HTTP). Point any URL-based MCP client at it; pass your API key as an Authorization: Bearer header for full quota.

Example

"What public-feed evidence is available for this IP?"

Illustrative unknown-IP response, not a live lookup:

{
  "ip": "192.0.2.1",
  "known": false,
  "verdict": "allow",
  "risk_score": 0,
  "signals": null,
  "network": null
}

Environment

VariableRequiredDefaultPurpose
MASKBREAK_API_KEYrecommended—API key from your dashboard; unlocks your plan's lookup allowance (100,000 a month on the Free plan). Since v0.1.5; the older SENTINEL_API_KEY name is still read
SENTINEL_BASE_URLnohttps://maskbreak.comOverride for testing

Failures and local checks

Both tools return MCP isError: true for HTTP failures, malformed responses or requests that exceed the five-second timeout (including body reads). An unavailable lookup is not an allow decision.

npm ci --ignore-scripts
npm test
npm pack --dry-run --ignore-scripts
npm audit

Tests use a real stdio MCP client with loopback HTTP fixtures, without production keys. CI checks Node.js 18, 22 and 24. No package is published by these checks.

MIT © Sentinel Edge Networks LTD

Questions fréquentes

Qu'est-ce que Maskbreak ?

Public IP signals (cloud hosting, Tor exits) and Maskbreak API status for fraud checks.

Comment installer Maskbreak ?

Il s'exécute sur votre machine. Dans Claude Code : claude mcp add maskbreak -e 'MASKBREAK_API_KEY=<your maskbreak_api_key>' -e 'SENTINEL_BASE_URL=https://maskbreak.com' -- npx -y @sentinelsup/mcp@0.1.8. Pour les autres clients, collez la configuration JSON de cette page dans leurs réglages MCP.

Faut-il une clé API pour Maskbreak ?

Oui. Il attend MASKBREAK_API_KEY, à renseigner dans sa configuration.

Maskbreak est-il open source ?

Oui. Son code est sur GitHub sous licence MIT.

Qui maintient Maskbreak ?

Il est publié par sentinelsup. AI.tn le référence sans le maintenir ni le recommander.

Issu du registre MCP officiel. Être listé n'est pas une recommandation : vérifiez le code et les permissions d'un serveur avant de lui donner accès à vos données.