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HiddenContent MCP Server

by hiddencontent Your server? Claim it
answering

HiddenContent is answering right now. Last checked 1 min ago. 2 187 installs a week from npm.

Check a document for hidden text before your agent reads it. PDF, Office, RTF, HTML.

The linked repository no longer exists on GitHub — it was deleted or made private.

Installs per day peak 1 039 · avg 75
a month agotoday
Uptime history 6 days of history
6 days agonow
100.0%
Uptime 24h
93 of 93 checks
—
Tools
hidden behind auth
406 ms
Response time
average over 24h
2 187
Installs / week
npm and PyPI

This one has been quiet for a while

Quiet is not dead — but it is worth knowing when it wakes up, or when someone else takes it over. We watch the repository and tell you either way.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 1 min ago.

run in your terminal
claude mcp add mcp --transport http https://api.hiddencontent.ai/v1/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "mcp": {
      "url": "https://api.hiddencontent.ai/v1/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.mcp]
url = "https://api.hiddencontent.ai/v1/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "mcp": {
      "url": "https://api.hiddencontent.ai/v1/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "mcp": {
      "url": "https://api.hiddencontent.ai/v1/mcp"
    }
  }
}

This endpoint answered with an authorization challenge — the server is running, but you need an API key or OAuth to use it.

Endpoints

URLTransportStateLatencyChecked
https://api.hiddencontent.ai/v1/mcp streamable-http needs key 477 ms 1 min ago

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HiddenContent — questions

Answers built from our own checks of this server.

Why is there no tool list for HiddenContent?
The server answered our handshake with an authorization challenge, so it is running — but it will not describe its tools to an anonymous client. To see them you need to connect with your own credentials. We record it as alive, not as broken: 100.0% of checks in the last 24 hours got a reply.
Is HiddenContent working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 93 of 93 checks got a reply (100.0%), average response time 406 ms. The bar chart above shows every period we have measured.
Is HiddenContent still maintained?
The linked repository no longer exists on GitHub — it was deleted or made private. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.
How do I connect HiddenContent?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address. You sign in through your browser once and the client keeps the session: no key to copy, and it refuses anonymous clients.
How do you sign in to HiddenContent?
No API key is involved. HiddenContent answers our knock with an OAuth challenge, so you authorise it once in your browser and the client keeps the session. That is also why we see no tool list: it will not describe itself to an anonymous client, and that is the server working as intended, not a fault.
How fast is HiddenContent?
It answers our handshake in 406 ms on average, which is faster than 40% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
How many people use HiddenContent?
The npm package @hiddencontent/mcp was installed 2 187 times in the last week. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.