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MCP Relay MCP Server

not responding

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

RunRelay MCP relay — AI agent threads, HITL confirmations, and travel capability discovery.

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

Uptime history 91 days of history · worst day 0%
91 days agonow
0.0%
Uptime 24h
0 of 91 checks
—
Tools
hidden behind auth
288 ms
Response time
average over 24h
open, no key
Access
sse

MCP Relay 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.

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 11 min ago.

run in your terminal
claude mcp add mcp-relay --transport sse https://mcp.runrelay.io/sse
Settings → Connectors → Add custom connector, then paste this address
https://mcp.runrelay.io/sse
~/.codex/config.toml
[mcp_servers.mcp-relay]
url = "https://mcp.runrelay.io/sse"
.cursor/mcp.json
{
  "mcpServers": {
    "mcp-relay": {
      "url": "https://mcp.runrelay.io/sse"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "mcp-relay": {
      "type": "sse",
      "url": "https://mcp.runrelay.io/sse"
    }
  }
}

Endpoints

URLTransportStateLatencyChecked
https://mcp.runrelay.io/sse sse answering 288 ms 11 min ago

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MCP Relay — questions

Answers built from our own checks of this server.

Is MCP Relay 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 288 ms. The bar chart above shows every period we have measured.
Is MCP Relay 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 MCP Relay 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 MCP Relay?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does MCP Relay need an API key?
No. MCP Relay 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.