MCP server

Cloakcheck

app.vercel.cloakcheck-wheat/cloakcheck

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Scan a page for hidden prompt-injection payloads targeting AI agents.

Website

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

1

Token cost

About 246 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http cloakcheck https://cloakcheck-wheat.vercel.app/api/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.cloakcheck]
url = "https://cloakcheck-wheat.vercel.app/api/mcp"

Gemini CLI

{"mcpServers":{"cloakcheck":{"httpUrl":"https://cloakcheck-wheat.vercel.app/api/mcp"}}}

Cursor

{"mcpServers":{"cloakcheck":{"url":"https://cloakcheck-wheat.vercel.app/api/mcp"}}}

VS Code

{"servers":{"cloakcheck":{"type":"http","url":"https://cloakcheck-wheat.vercel.app/api/mcp"}}}

Antigravity

agy mcp add cloakcheck https://cloakcheck-wheat.vercel.app/api/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"cloakcheck","server_url":"https://cloakcheck-wheat.vercel.app/api/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"cloakcheck","server_url":"https://cloakcheck-wheat.vercel.app/api/mcp"}

Tools

• check_page_for_injection ~246 tokens
  Scan a single web page for content planted to hijack an AI agent reading it -- invisible unicode (zero-width chars, the unicode 'tag' block used for steganographic prompt injection), CSS-hidden instruction text, and instruction-shaped language in alt/title/aria-label attributes a human would never r

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Badge for your README

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