mcpbeat Sign in

Nextmail MCP Server

by nextmail Your server? Claim it
answering

Nextmail is answering right now. Last checked 5 min ago. Last commit 24 Oct 2026.

AI-native email for businesses, developers, and AI agents.

Uptime history 25 hours of history
25 hours agonow
100.0%
Uptime 24h
90 of 90 checks
—
Tools
hidden behind auth
1505 ms
Response time
average over 24h
1
Stars
last commit 24 Oct 2026

Nothing serious here today

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

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 5 min ago.

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

URLTransportStateLatencyChecked
https://api.nextmail.sh/mcp streamable-http sign-in 248 ms 5 min ago

Alternatives to Nextmail

same job, measured the same way
Agentweb
by zerabic

Free business data for AI agents. 11M+ businesses, 227 countries, phone/email/hours.

55 installs/wk local only
Selectic
by selectic-ai

AI agent that calls, texts & emails businesses for you, then returns transcripts and replies.

31 installs/wk answering
Shipmail MCP
by shipmail-to

Shipmail MCP server. Modern email for your business, with an API for your agents.

136 installs/wk answering
A
Agentline
by jgottlieb84

Phone numbers, SMS, 2FA capture, voice calls, and email for AI agents.

131 installs/wk local only
Agenticmail
by agenticmail

Real email and SMS for AI agents — send mail, receive verification codes, drive a real inbox.

48 installs/wk local only
Email Finder
by superagnt

Email finder + verifier for AI agents: find work emails by name and company, check deliverability.

answering
Anjal
by anjal

Email inboxes and calendars for AI agents: send, receive, search, draft and schedule.

answering
MCP Email
by infoinlet-marketplace

Email for AI agents — read inbox (IMAP), search, and send (SMTP).

17 installs/wk local only

Nextmail — questions

Answers built from our own checks of this server.

Why is there no tool list for Nextmail?
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 Nextmail working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 90 of 90 checks got a reply (100.0%), average response time 1505 ms. The bar chart above shows every period we have measured.
How do I connect Nextmail?
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. 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 Nextmail?
No API key is involved. Nextmail 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 Nextmail?
It answers our handshake in 1505 ms on average, which is faster than 1% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is Nextmail open source?
The code is open source: it is published under the MIT licence and 1 stars on GitHub. The licence covers the code in the repository, not the hosted service at api.nextmail.sh, which runs on its operator's own terms.