mcpbeat

Test Mailbox MCP Server

io.github.therealMrFunGuy/test-mailbox
not responding

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

Disposable email inboxes for testing — create addresses, wait for messages, extract links.

Uptime history 45 hours of history · worst hour 0%
45 hours agonow
0.0%
Uptime 24h
0 of 91 checks
—
Tools
hidden behind auth
397 ms
Response time
average over 24h
open, no key
Access
sse

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 9 min ago.

run in your terminal
claude mcp add test-mailbox --transport http https://mail.rjctdlabs.xyz/sse
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "test-mailbox": {
      "url": "https://mail.rjctdlabs.xyz/sse"
    }
  }
}
~/.codex/config.toml
[mcp_servers.test-mailbox]
url = "https://mail.rjctdlabs.xyz/sse"
.cursor/mcp.json
{
  "mcpServers": {
    "test-mailbox": {
      "url": "https://mail.rjctdlabs.xyz/sse"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "test-mailbox": {
      "url": "https://mail.rjctdlabs.xyz/sse"
    }
  }
}

Endpoints

URLTransportStateLatencyChecked
https://mail.rjctdlabs.xyz/sse sse answering 397 ms 9 min ago

Test Mailbox — questions

Answers built from our own checks of this server.

Is Test Mailbox 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 397 ms. The bar chart above shows every period we have measured.
The registry lists Test Mailbox 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 Test Mailbox?
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 Test Mailbox need an API key?
No. Test Mailbox 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.