{"slug": "maskbreak-com-maskbreak-mcp-0-1-6", "title": "Maskbreak (com.maskbreak/mcp@0.1.6)", "summary": "Maskbreak v0.1.6, an MCP server providing public IP signals such as cloud hosting and Tor exit data for fraud checks, was published to the official MCP registry on 2026-09-24 and is distributed as @sentinelsup/mcp on npm. The server declares two environment variables, MASKBREAK_API_KEY for 1,000 lookups an hour and SENTINEL_BASE_URL for API base URL overrides, and the older SENTINEL_API_KEY name is still read. The mcpindex index lists Maskbreak's verdict as not yet evaluated, with the deterministic conformance probe built but not yet run on the public corpus, so any recorded verdict is REVIEW or UNVERIFIED rather than a clearing ALLOW.", "body_md": "[← Index](https://mcpindex.ai/leaderboard)\n\n# Maskbreak\n\nPublic IP signals (cloud hosting, Tor exits) and Maskbreak API status for fraud checks.\n\nThe current version, v0.1.6, was published to the official MCP registry on 2026-09-24. It is distributed as @sentinelsup/mcp on npm, filed under Other by this index, and declares 2 environment variables. Removals and unreachable sources are measured across every server this index tracks, contract drift across the servers that answer in consecutive snapshots; [the index's current counts](https://mcpindex.ai/stats) put this record in context.\n\n## Using Maskbreak in Claude, Cursor, Gemini CLI, Cline, or Zed?\n\nMCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and **HOLDs the call** when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use **Install this server** for that).\n\nRewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less\n\n```\nuv tool install mcpindex-gate && mcpindex-config-wire\n```\n\n[method](https://mcpindex.ai/methodology)\n\nVerdict not yet evaluated for this tool. The semantic screen takes adversarial cases first; coverage rolls out as the corpus expands (15/150 labels to graduation). The deterministic conformance probe is built but has not yet run on the public corpus, so a recorded verdict here is REVIEW or UNVERIFIED, never a clearing ALLOW. Until a verdict is recorded, an agent should treat this tool as not-yet-cleared and fall back to its own checks. Method: [the eval, four-state verdict, honest limits](https://mcpindex.ai/methodology).\n\nOwn this server? [Screen its description →](https://mcpindex.ai/screen)\n\n## That verdict was true at screening time (snapshot 2026-09-24).\n\nContracts can change after screening, with no version bump. The gate pins Maskbreak’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.\n\n[See your first HOLD in 2 minutes →](https://mcpindex.ai/guides/install-the-gate-first-hold)\n\nRelated: [how to trust an MCP server](https://mcpindex.ai/guides/how-to-trust-an-mcp-server) · [screen before install](https://mcpindex.ai/guides/screen-mcp-server-before-install) · [silent contract drift](https://mcpindex.ai/guides/mcp-silent-contract-drift)\n\n`MASKBREAK_API_KEY`\nMaskbreak API key for 1,000 lookups an hour. Without it, lookups use the rate-limited keyless endpoint. The older SENTINEL_API_KEY name is still read.\n\n`SENTINEL_BASE_URL`\nAPI base URL override, for testing.\n\n[methodology](https://mcpindex.ai/methodology)\n\n[AgentRoamai.agentroam/agentroam](https://mcpindex.ai/server/ai-agentroam-agentroam)\n\nBuy travel eSIMs, gift cards and mobile top-ups with crypto — user confirms before any order.\n\n[Authoryzeai.authoryze/authoryze](https://mcpindex.ai/server/ai-authoryze-authoryze)\n\nGive your AI agent a spending limit: approval controls and single-use virtual cards.\n\n[com.masterdiego/master-diegocom.masterdiego/master-diego](https://mcpindex.ai/server/com-masterdiego-master-diego)\n\nWhat your rivals' users ask for, counted by distinct account, link on every line.", "url": "https://wpnews.pro/news/maskbreak-com-maskbreak-mcp-0-1-6", "canonical_source": "https://mcpindex.ai/server/com-maskbreak-mcp", "published_at": "2026-09-24 00:29:36+00:00", "updated_at": "2026-09-24 01:29:21.661777+00:00", "lang": "en", "topics": ["ai-agents", "agent-protocols", "ai-tools", "developer-tools"], "entities": ["Maskbreak", "mcpindex", "npm", "@sentinelsup/mcp", "MASKBREAK_API_KEY", "SENTINEL_BASE_URL", "SENTINEL_API_KEY", "Claude"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/maskbreak-com-maskbreak-mcp-0-1-6", "markdown": "https://wpnews.pro/news/maskbreak-com-maskbreak-mcp-0-1-6.md", "text": "https://wpnews.pro/news/maskbreak-com-maskbreak-mcp-0-1-6.txt", "jsonld": "https://wpnews.pro/news/maskbreak-com-maskbreak-mcp-0-1-6.jsonld"}}