Quadratik MCP Server

by quadratik-ai Your server? Claim it

not responding

Quadratik is listed as active in the registry but did not answer our last check.

Search and manage 220M+ B2B contacts. Filter by title, industry, location, and more.

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

Uptime history 51 days of history · worst day 0%

51 days agonow

0.0%

Uptime 24h

0 of 91 checks

—

Tools

hidden behind auth

188 ms

Response time

average over 24h

open, no key

Access

streamable-http

Quadratik does not always answer

Over the last week it answered 0.0% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 0 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add quadratik --transport http https://quadratikmcp-production.up.railway.app/

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "quadratik": {
      "url": "https://quadratikmcp-production.up.railway.app/"
    }
  }
}

~/.codex/config.toml

[mcp_servers.quadratik]
url = "https://quadratikmcp-production.up.railway.app/"

.cursor/mcp.json

{
  "mcpServers": {
    "quadratik": {
      "url": "https://quadratikmcp-production.up.railway.app/"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "quadratik": {
      "url": "https://quadratikmcp-production.up.railway.app/"
    }
  }
}

Endpoints

URL	Transport	State	Latency	Checked
https://quadratikmcp-production.up.railway.app/	streamable-http	answering	188 ms	0 min ago

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Quadratik — questions

Answers built from our own checks of this server.

Is Quadratik working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 0 of 91 checks got a reply (0.0%), average response time 188 ms. The bar chart above shows every period we have measured.

Is Quadratik 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.

The registry lists Quadratik 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 Quadratik?

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 Quadratik need an API key?

No. Quadratik completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. This is what we observed, not what the docs claim.