Cortex Gateway MCP Server

by wellknownmcp Your server? Claim it

answering

Cortex Gateway is answering right now. Last checked 3 min ago. Last commit 22 Aug 2026.

Self-hosted federated MCP gateway: one OAuth 2.1 MCP server in front of N apps, user-level scopes.

Uptime history 48 days of history · worst day 99%

48 days agonow

100.0%

Uptime 24h

92 of 92 checks

—

Tools

hidden behind auth

242 ms

Response time

average over 24h

Stars

last commit 22 Aug 2026

Nothing serious here today

Today is the operative word: we check Cortex Gateway every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 3 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add cortex-gateway --transport http https://mcp.cortex-gateway.dev/mcp

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

{
  "mcpServers": {
    "cortex-gateway": {
      "url": "https://mcp.cortex-gateway.dev/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.cortex-gateway]
url = "https://mcp.cortex-gateway.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "cortex-gateway": {
      "url": "https://mcp.cortex-gateway.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "cortex-gateway": {
      "url": "https://mcp.cortex-gateway.dev/mcp"
    }
  }
}

This endpoint answered with an authorization challenge. The server is running, and it signs you in through your browser: there is no API key to paste.

Endpoints

URL	Transport	State	Latency	Checked
https://mcp.cortex-gateway.dev/mcp	streamable-http	sign-in	208 ms	3 min ago

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Cortex Gateway — questions

Answers built from our own checks of this server.

Why is there no tool list for Cortex Gateway?

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 Cortex Gateway working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 242 ms. The bar chart above shows every period we have measured.

How do I connect Cortex Gateway?

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 Cortex Gateway?

No API key is involved. Cortex Gateway 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 Cortex Gateway?

It answers our handshake in 242 ms on average, which is faster than 59% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Cortex Gateway open source?

Yes — it is published under the MIT licence, written in HTML, 12 stars on GitHub and 2 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.