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mcpindex MCP Server

not responding

mcpindex is listed as active in the registry but did not answer our last check. 76 installs a week from npm. It exposes 6 tools. Last commit 22 Sep 2026.

The MCP server index that vets servers, not just lists them. Advisory screen before you install.

Installs per day peak 32 · avg 12 · +144% w/w
a month agotoday
Uptime history 51 days of history · worst day 0%
51 days agonow
2.2%
Uptime 24h
2 of 91 checks
6
Tools
read from the server
698 ms
Response time
average over 24h
76
Installs / week
npm and PyPI

What changed 6

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 14 August 2026. No other catalogue keeps this.

13 Aug 6 tools changed the parameters they ask for assess_server, check_tool_trust, compare_servers and 3 more

What the code does

We read the source, 18 h ago · tools taken from the live server · rules 3dff92dd89df

In the project's build, not in the package

Found in continuous integration, deployment or infrastructure files, or in a neighbouring package of the same monorepo. None of this is installed when you add the server: it describes how the project is built and released. We list it because a leaked key in a build pipeline is still a real problem, but it is not something this server does on your machine.

Executes code built at runtime lib/driftIdentity.ts:165
    await r.eval(REVOKE_SCRIPT, [identityKey(installId)], []);

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

mcpindex does not always answer

Over the last week it answered 2.5% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

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 7 min ago.

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

Available tools 6

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

assess
assess_server
Aggregated pre-flight trust assessment across all tools on an MCP server. Same verdict shape as check_tool_trust. Use for "is THIS server worth integrating?" decisions. v1 advisory; conformance monitored not enforced; verdicts may be UNVERIFIED if not yet probed.
compare
compare_servers
Side-by-side comparison of 2-5 MCP servers - quality scores, install paths, env vars.
install
get_install_command
Get the exact install command for a given MCP server and client. Returns a JSON block ready to paste into the client config.
mcp
search_mcp_servers
Keyword + semantic search across every MCP server mcpindex indexes. Use when the user knows what tool category they want but not which server.
recommend
recommend_mcp_for_task
Recommend the best MCP servers for a natural-language task. Returns top 3 ranked picks with reasoning, install commands, and quality scores. Use this when the user asks for the right MCP server for a task they want to do.
tool
check_tool_trust
Pre-invocation advisory screen for a specific tool on an MCP server. Returns an advisory verdict object (directive ALLOW | DENY | REVIEW | UNVERIFIED, dimensions, freshness). At v1 the public screen produces REVIEW or UNVERIFIED only - ALLOW/DENY are reserved. Not the in-path gate (mcpindex-gate). Agents SHOULD treat UNVERIFIED as "human review required", never as ALLOW.

Endpoints

URLTransportStateLatencyChecked
https://mcpindex.ai/api/mcp streamable-http answering 66 ms 7 min ago

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mcpindex — questions

Answers built from our own checks of this server.

What can mcpindex do?
It exposes 6 tools, read directly from the server on our last check. Among them: assess_server, check_tool_trust, compare_servers, get_install_command, recommend_mcp_for_task, search_mcp_servers. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is mcpindex working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 2 of 91 checks got a reply (2.2%), average response time 698 ms. The bar chart above shows every period we have measured.
The registry lists mcpindex as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
How do I connect mcpindex?
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.
Does mcpindex need an API key?
No. mcpindex completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 6 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is mcpindex?
It answers our handshake in 698 ms on average, which is faster than 18% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.
How many people use mcpindex?
The npm package mcp-server-mcpindex was installed 76 times in the last week. Week over week that is +144%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is mcpindex open source?
Yes — it is published under the MIT licence, written in TypeScript, 1 stars on GitHub and 1 open issue. The source link is on this page, so you can read exactly what it does with your data before you connect it.