How do I install HiddenContent?

Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.

Does HiddenContent need an API key?

The publisher lists these environment variables: HCS_API_TOKEN, HCS_URL, HCS_CAPABILITIES.

What transport does HiddenContent use?

HiddenContent is reached over HTTP.

When was HiddenContent last checked?

Last checked 2026-10-18. Check a document for hidden text before your agent reads it. PDF, Office, RTF, HTML.

HiddenContent MCP server

Power your agent

Add this server

The publisher's own URL. Not a PlugMCP endpoint.

Add to Cursor Add in Claude Add to VS Code Run on PlugMCP

Host a copy with our keys and logs.

Server URL

https://api.hiddencontent.ai/v1/mcp

Credentials from the publisher

HCS_API_TOKEN — API token for the HiddenContent service. Get one at https://hiddencontent.ai/start?ref=mcp-registry — the server refuses to start without it and says so.
HCS_URL — Base URL of the service. Defaults to the hosted API; set it only when pointing at a self-hosted instance.
HCS_CAPABILITIES — Comma-separated list of what your agent can actually do. The only accepted values are `tool-use`, `network-egress` and `code-execution`. These turn on the checks for concealed text that instructs a model to call a tool, send data or run code — declaring more can raise severity and never lowers it, and declaring nothing leaves those checks inert. Defaults to `tool-use` in the bundle install.

The Claude button above opens Claude with the name and URL filled in. You still confirm it there.

shClaude Code

1claude mcp add --transport http ai.hiddencontent-mcp https://api.hiddencontent.ai/v1/mcp

Run in a terminal.

jsonClaude Desktop

1{2  "mcpServers": {3    "ai.hiddencontent-mcp": {4      "command": "npx",5      "args": [6        "-y",7        "mcp-remote",8        "https://api.hiddencontent.ai/v1/mcp"9      ]10    }11  }12}

claude_desktop_config.json

Remote · HTTPPublisher installStep-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Run on PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Launch

Server facts

Remote

Tools

No tool list yet. Remote servers get one after the first health check.

FAQ

HiddenContent

Add this server

Host a copy with our keys and logs.

Server facts

Tools

Questions

How do I install HiddenContent?

Does HiddenContent need an API key?

What transport does HiddenContent use?

When was HiddenContent last checked?

Documentation