ListCheckup is answering right now. Last checked 10 min ago. Last commit 27 Oct 2026.
Email verification for AI agents: check addresses and lists, priced before credits are spent.
Nothing serious here today
Today is the operative word: we check ListCheckup 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 10 min ago.
claude mcp add mcp --transport http https://listcheckup.com/mcphttps://listcheckup.com/mcp[mcp_servers.mcp]
url = "https://listcheckup.com/mcp"{
"mcpServers": {
"mcp": {
"url": "https://listcheckup.com/mcp"
}
}
}{
"servers": {
"mcp": {
"type": "http",
"url": "https://listcheckup.com/mcp"
}
}
}This endpoint answered with an authorization challenge. The server is running, but it did not say what kind of credentials it expects.
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://listcheckup.com/mcp | streamable-http | needs auth | 206 ms | 10 min ago |
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ListCheckup — questions
Answers built from our own checks of this server.